Model Engine Maker

Engines => From Plans => Topic started by: crueby on December 31, 2019, 05:40:21 PM

Title: Chris's Build of a Stanley 735 Engine
Post by: crueby on December 31, 2019, 05:40:21 PM
Hi all!

Another year starting, great time to start a new build. This one will be of the piston-valved version of the Stanley Steamer engine model 735 from 1918. The plans came from the Stanley museum up in Maine, I got a copy of the 3D CAD model from a friend up there who was involved in updating the plans. I do not own the rights to these plans, so will not be publishing them here. The engines as mass produced used a slide valve setup, with the steam chest between the cylinders and accessible by a removeable round plate in the side. This proved to be too difficult to make at smaller scale, but I was also able to get a plan for their prototype of a piston-valve version, which will be a lot easier to build. So, that is the version I will make - Stanley made MANY versions of their engines, constantly were tinkering and improving the design.

Here is what the engine looks like:
(https://i.postimg.cc/bYgfd4rn/Stanley-Engine-Assembly.jpg)

The model will be 1/4 scale of the original, which makes it just small enough to be able to turn the cylinders on the Sherline lathe/mill that I have. The steam/exhaust passages on the original were cast into the block, with a inserted sleeve on the valves to provide accurate machined ports. For the model, I worked out a way to keep the original look but provide for a cover plate on one side to allow me to machine the internal passages:
(https://i.postimg.cc/5NtdzpQR/Stanley-Engine-Cylinder.jpg)
The cylinder block will be cut from a length of 1144 stressproof steel bar stock, I was able to get a length of 2-3/4" diameter bar at Online Metals' Black Friday sale, enough for this build and the next couple (assuming I don't mess up too badly). You can see this bar in the background in this shot where the shope elves and I were studying the plans:
(https://i.postimg.cc/0Nn07GwV/IMG-6402.jpg)
You can also see on the left side the 3D printed version of the block, at model size, that I had printed to use as a reference. With so many shapes, I wanted it to help keep me from putting something on the wrong side of the part during all the machining steps to come.


To hold the block for machining/boring, I designed up a holding fixture that will bolt onto the heavy steel faceplate that I got this winter (they are made for bowl turning on wood lathes, but are available in the same spindle thread as the Sherline uses, and are much sturdier than the stock Sherline aluminum faceplates). The fixture will have four threaded alignment posts that will fit into the mounting lugs on the base of the cylinder block, and will allow boring/shaping one side of the block at a time.

(https://i.postimg.cc/RhSrXLsq/Stanley-Engine-Faceplate2.jpg)

The recess in the center will give room for the boring bar to come through the cylinder without bottoming out.
It is symetrical to the block, so turning the part around on the fixture will align it for the second cylinder.
(https://i.postimg.cc/L5Nc7gwD/Stanley-Engine-Faceplate.jpg)

With the riser blocks in place on the lathe, the part will just clear the lathe bed. It can also be moved over to the rotary table on the mill for other shaping/drilling operations. Should be a good way to do most of the work on it.

So, first steps? I need to make the tooling plate, get the 1144 bar cut to length and roughed out to a rectangular block on the bandsaw, and also make a change to the thread cutting attachment on the lathe. I bought the thread cutting accessory for my Sherline many years ago, but rarely use it since it requires removing the motor, which is a pain in the swarf to do every time. More recently I found a user tip on the Sherline website that shows how to reverse the gear plates so they stick out the front of the machine, and make an extension for the handwheel to clear the motor. I am taking that one step further and making a slightly smaller handwheel. Using it with the riser blocks on the lathe requires using the gear to make a metric thread, but that is no problem (the cylinder endcaps thread in place, not bolt down).


So, on to making chips fly!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: fumopuc on December 31, 2019, 05:50:35 PM
Hi Chris, good to see you and the elves attacking a new challenge.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: 10KPete on December 31, 2019, 05:50:39 PM
 :ThumbsUp: :popcorn: :popcorn: :Love:

Pete
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on December 31, 2019, 06:10:23 PM
Looking forward to this one!  :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:

Bucket Bob seems to be looking for a firing pin on the double barrel "elf launcher" drawing!  :Lol:

One idea re the fixture plate - a couple of holes for attaching various counterweights opposite the cylinder for balance might be a good feature. I say various as the c-weight may need to be reduced as machining ops take weight off the cylinder. I have used a stack of several plates drilled together for this type of counterweight , with plates removed from the stack as work progresses. (prevents minor earthquakes in the shop from imbalance)  :o
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Johnmcc69 on December 31, 2019, 06:18:30 PM
 :ThumbsUp:
Very cool Chris!

 Signing up for the ride!
 :popcorn:

 John
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Kim on December 31, 2019, 06:23:41 PM
I'm in for the ride!  Let's go, Chris!  :popcorn: :popcorn:
Kim
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on December 31, 2019, 06:58:51 PM
Looking forward to this one!  :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:

Bucket Bob seems to be looking for a firing pin on the double barrel "elf launcher" drawing!  :Lol:

One idea re the fixture plate - a couple of holes for attaching various counterweights opposite the cylinder for balance might be a good feature. I say various as the c-weight may need to be reduced as machining ops take weight off the cylinder. I have used a stack of several plates drilled together for this type of counterweight , with plates removed from the stack as work progresses. (prevents minor earthquakes in the shop from imbalance)  :o
Good idea!


I could drill/tap a few holes, and bolt on scrap bits of brass as needed. The plate itself could have been shorter, but I ran it all the way across to balance itself at least. I'll add those holes when I drill the plate. :cheers:
Edit:  Holes here should do the job...
(https://i.postimg.cc/9Fp9vCWr/Balance-Holes.jpg)

 
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on December 31, 2019, 06:59:59 PM
Hi Chris, good to see you and the elves attacking a new challenge.
Yeah, this shape block will be interesting, especially the angled lugs on the ends, which they used for angled stays up to the frame.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on December 31, 2019, 07:01:17 PM
I'm in for the ride!  Let's go, Chris!  :popcorn: :popcorn:
Kim

:ThumbsUp:
Very cool Chris!

 Signing up for the ride!
 :popcorn:

 John
Got your tickets? Okay, arms and legs outside the car at all times!    Chugga  chugga ....
 :Lol:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on December 31, 2019, 07:09:05 PM
First chips made on the build! Sawed a chunk of the 1144 to length (plus a little), then squared it up on the bandsaw:
(https://i.postimg.cc/wTtFz1G7/IMG-6405.jpg)
A bandsaw is hardly a precision cutter, so I left extra stock for trueing it up. Turned out to have only about a .030 variation end to end on the worst side, not bad for stacking tolerances as each side was cut. Still, enough that I will pick the two sides most parallel to each other to hold in the vise first as the trueing cuts begin, for the best holding power.

Here are the bits so far, the fixture plate rough cut to length, and the cylinder block 'casting' rough cut, with the 3D printed reference part on top. This is a REALLY rough casting, bet Jo's supplier is better than mine! Sirus would send this one back!  :Lol:
(https://i.postimg.cc/tCLk49KD/IMG-6407.jpg)
And of course it had to undergo an Elfspection...
(https://i.postimg.cc/Njm4yWYt/IMG-6408.jpg)
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: zeeprogrammer on December 31, 2019, 08:47:26 PM
 :pinkelephant:

It begins.

And despite the recent parties...I have  :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on December 31, 2019, 09:22:25 PM
:pinkelephant:

It begins.

And despite the recent parties...I have  :popcorn:
Well pass the popcorn, I want to watch the elves work too!   ....  um, wait, err, THEY want to watch ME work, yeah, thats it!   :Lol:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on December 31, 2019, 09:30:09 PM
As mentioned above, I needed to make a smaller handwheel for the threading attachment, so I can leave the motor in place on the lathe. Having to remove/install the motor on every thread would be a royal pain, when this way all I need to do is swing the gears out of the way and remove the handwheel. I used a small handwheel casting that I had picked up years ago as a flywheel blank (used one on my Monitor build). Bored the center to fit the spindle, drilled/tapped some holes, and added a handle.
(https://i.postimg.cc/B6zCdssr/IMG-6409.jpg)
Did some experimenting with different thread pitches. Since only the metric set of gears are tall enough to reach the spindle with the riser block in place (which it will be for the cylinders), I started with a 0.8mm pitch set:
(https://i.postimg.cc/hhW1trXM/IMG-6411.jpg)
A little too fine a thread, so I tried a 0.9mm pitch

(https://i.postimg.cc/nrQ1x5hC/IMG-6412.jpg)
That looks a little more like it, think I'll go with that. The smaller handwheel works out fine, its only slightly smaller than the factory one, just needed to be 1/2" smaller to clear the motor and leave finger room. So, that gives me the ability to cut threads in the ends of the cylinder openings for the end caps, which will be just over 1" diameter. Cutting the steel will be tougher than the brass test piece, but that just means shallower passes.

Next time will start in on squaring up the cylinder blank on the mill....
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Don1966 on December 31, 2019, 09:39:50 PM
I say one thing about you Dog an’t no grass growing under you feet. Damn son you don’t even take a breather! Interested to see this one evolve Chris but hey your the man for the job and lets not forget the elves.....



  :drinking-41:
Don
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Craig DeShong on January 01, 2020, 03:33:29 AM
Hot diggity  :popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Steamer5 on January 01, 2020, 08:03:31 AM
SWEET!

New Year new build to follow, thankfully the  :popcorn: is growing nicely, & I still have a little bit left from last year!
Looking forward to this for a ....................................while now.

Cheers Kerrin

Oh & Happy New Year to you & the little guys!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Jo on January 01, 2020, 08:10:56 AM
Looking forward to seeing this model engine come together  :)

That 3D cylinder printing has Surus' attention  :facepalm: He thinks it is a casting or at least a new way to get them  :pinkelephant:

Jo
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Flyboy Jim on January 01, 2020, 04:46:02 PM
A New Year and a new build thread from Chris. Yeeees!  :whoohoo:

I like how you've set up your thread cutting attachment. I got one when I got my Sherline lathe, but haven't used it for the very reasons you mentioned.

Jim
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 01, 2020, 05:18:44 PM
A New Year and a new build thread from Chris. Yeeees!  :whoohoo:

I like how you've set up your thread cutting attachment. I got one when I got my Sherline lathe, but haven't used it for the very reasons you mentioned.

Jim


Sherline has this tip in thier list of user supplied tips on the website, just need a smaller handwheel. And make sure not to turn on the power!!!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: b.lindsey on January 01, 2020, 07:02:50 PM
Nice project for starting off the new decade Chris. Will be watching along as well

Bill
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 01, 2020, 10:45:34 PM
Not much change visually, but this afternoon I spent some time with the fly cutter (hung plexi shields around it to somewhat control the hot chips flying all over) to square up the engine block blank. The bandsaw cuts pretty square, but the slight wanders make it tough to securely clamp in the mill vise, so well worth the time to square it all up.

(https://i.postimg.cc/Zn1tNyG7/IMG-6413.jpg)
With the sides parallel/square to each other, now I can lay out the holes for the large mounting lugs on the bottom, and set up the holding fixture to match. The fly cutter leaves a nice surface, but it does not remove much material, so the sides will be taken down with some drilling/milling most likely. Once it is on the holding fixture I will need some study time to decide what order to work in to get the outside shapes.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Craig DeShong on January 02, 2020, 01:40:43 AM
Just getting caught-up on my reading here on MEM.  My own project was alligators and crocodiles for a while.  This looks like another ‘Chris’ project taking off at breakneck speed.  I better set aside some MEM reading time or I’m going to fall woefully behind.  :Lol:

Looks like you’re off to a great start. 
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 02, 2020, 02:10:09 AM
Hi Craig,  I'll try not to require a speed reading course!   :happyreader:

This engine block needs some serious nibbling around the edges, a carbide toothed crocodile would help...  :Lol:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 02, 2020, 09:41:27 PM
Today the weather was decent, no snow or rain and close to 50F outside, so popped over and took the Christmas lights down off the Marion steam shovel in LeRoy. These battery operated LED lights are nice, they lasted almost 6 weeks on one set of D cells per 50' string.

This afternoon, got started making the holding fixture for the engine block on the Stanley. First step was to center the rotary table under the mill spindle, using the co-ax indicator. The face and rim of the faceplate had been trued on the lathe, so I could use the rim to indicate on. Once it was centered, the handwheels were zeroed and the table moved left 1.414" and locked down.
(https://i.postimg.cc/Fs6qbg0F/IMG-6414.jpg)
Drilled/tapped four 5-40 holes at 90 degree intervals...
(https://i.postimg.cc/7YhdTQGQ/IMG-6415.jpg)
Then laid out the pattern on the fixture plate itself, and lined it up on the faceplate - took a few tries to get it aligned. Then clamped it down and drilled close clearance holes at 90 degree intervals again. Since the mill table had been locked down, these holes were on the same circle as the ones in the faceplate.
(https://i.postimg.cc/mgFnmzSY/IMG-6416.jpg)
Then bolted the fixture plate to the faceplate in those new holes, and did some coordinate drilling - moved the mill table back to center (drilled a reference hole while there in case I need it later) then over to the coordinates of each hole where the engine block mounting lugs will be. Drilled each of those positions and tapped them 1/4-28.
(https://i.postimg.cc/vmFNkYPp/IMG-6417.jpg)
Here is the 3D printed reference part set over those holes to show where the engine block will be held in place for boring one cylinder at a time. The mounting lugs are symmetric about the center lines of the block, so I can turn the block around on the bolts and have the other cylinder lined up on the center of the faceplate.
(https://i.postimg.cc/g0VTPCQr/IMG-6418.jpg)
Next steps will be to turn/drill/thread the posts that go in those four holes in the fixture plate, loctite them in, and bore the recess in the center of the plate.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: zeeprogrammer on January 02, 2020, 11:20:02 PM
Apologies if I missed it...

Where did that 3D printed reference part come from? What is it made of? Who made it?

BTW You should expect one of your roaming elves to come home soon. Not much going on here and he got bored. Besides which...I ran out of my cookies.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Don1966 on January 02, 2020, 11:27:42 PM
Pretty well thought out Dog love it..... :Love:


 :cheers:
Don
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Brian Rupnow on January 02, 2020, 11:44:50 PM
Chris---Every morning I come downstairs to my office and shop, and one of the first things I do is check on whatever you are building. You do great work. I will follow this build as I follow all of your stuff.--Thank you for the good work that you share with all of us.---Brian
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 03, 2020, 01:17:09 AM
Apologies if I missed it...

Where did that 3D printed reference part come from? What is it made of? Who made it?

BTW You should expect one of your roaming elves to come home soon. Not much going on here and he got bored. Besides which...I ran out of my cookies.


I had it printed at Jawstec.com, found they are a fair bit cheaper than places like shapeways, though they only have a couple of materials. This is mjf nylon, I have had parts for my sub done in glass filled nylon there. They allow the .step format, so no issues with converting to triangles.




I'll leave a light on for my returning elf - your  running out of cookies is a firing offense for them. Be interesting to see how many of your tools he stuffed in his backpack.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 03, 2020, 01:18:48 AM
Pretty well thought out Dog love it..... :Love:


 :cheers:
Don
Thanks Don, been plotting this one out for a while, very interesting shape!




Chris---Every morning I come downstairs to my office and shop, and one of the first things I do is check on whatever you are building. You do great work. I will follow this build as I follow all of your stuff.--Thank you for the good work that you share with all of us.---Brian


Glad to have you on board again!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Dave Otto on January 03, 2020, 01:49:07 AM
Apologies if I missed it...

Where did that 3D printed reference part come from? What is it made of? Who made it?

BTW You should expect one of your roaming elves to come home soon. Not much going on here and he got bored. Besides which...I ran out of my cookies.

Hi Zee

Have a look,
https://www8.hp.com/us/en/printers/3d-printers.html

We received ours after a long wait just before the Christmas break and I have been having fun learning the ins and outs of running it. It does print Nylon and the sandy cast appearance can be deceiving.
The material is completely solid if you cut into it.

Dave
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 03, 2020, 02:18:54 AM
Fascinating printers, but way above the typical home device.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 03, 2020, 10:52:04 PM
Not much time on the Stanley today, been spending time on the boats getting ready for our next pool run. I did get time to make the threaded studs for the cylinder holding fixture. These studs thread into the plate, and have a threaded through hole that will take the bolts through the engine block flanges.
(https://i.postimg.cc/JnfXkqQH/IMG-6419.jpg)
Next step is to bore the recess in the center of the plate which will allow the boring bar to go a little past the end of the cylinder without bottoming out on the plate. Then I think it will be time to start actual work on the engine block itself. The hours spent on this fixture will be well worth it, having a secure and repeatable way to hold the engine block.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: steam guy willy on January 03, 2020, 11:29:56 PM
Hi Chris, just a mile from my house is a friend with this stable full of steam cars and also a Morris Minor conversion.     With me posing !!! Had a drive in one and the acceleration was exhilarating ..they are Propane fired and the pressure is 600PSI !!!

Willy
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 03, 2020, 11:37:41 PM
Willy, Stop posing and ship me one of those cars!!!! 


What an awesome group, great fun.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 04, 2020, 07:02:10 PM
Today is alternating rain and snow, so a perfect day to stay in the shop and play. So far have gotten the holes for the mounting lugs laid out and drilled on the base of the engine block blank:
(https://i.postimg.cc/ZnHHr8kJ/IMG-6420.jpg)
and milled recesses in the side to clear the screw heads that hold the fixture to the faceplate. These areas will be cut away later anyway, so these recesses will not show on the final part.
(https://i.postimg.cc/gkcNGTRj/IMG-6422.jpg)
Test fit of the block on the holding plate, a nice snug fit, very happy with that.
(https://i.postimg.cc/1tpJzxJn/IMG-6423.jpg)
Laid out the areas on the sides of the block that will need to be cut away to get down to the sides of the cylinder walls and expose the tops of the mounting lugs. As you can see on the side of the 3D printed part that Elfric is holding, the mounting lugs stick out from the sides of the part on both sides of the cylinders.
(https://i.postimg.cc/FFVT54Yw/IMG-6424.jpg)
Those areas marked with X's are a lot to remove with just the mill, I will see if I can slab off the bulk of them with the bandsaw.  Last step on the fixture plate was to bore in the recess in the center, to allow the boring bar room to go past the end of the cylinder while boring it out without risk of bottoming the cutter. This required putting the riser block in the lathe, and getting out the taller toolpost.
(https://i.postimg.cc/Xq4xG2z2/IMG-6425.jpg)
A last double-check on the clearances too - the Sherline allows for just over a 6" diameter with the riser block in place, and the engine block will need nearly all of that to center the cylinders for boring. Should clear fine, as long as I cut the outside profiles of the block first, and bore the cylinders last. Otherwise, the corners of the block will hit the ways on the lathe.

Good place to break for lunch!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 04, 2020, 07:25:44 PM
Looks like a great start Chris!  :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 04, 2020, 11:07:39 PM
Looks like a great start Chris!  :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
Thanks - and I remembered (at the last minute) to put in the holes for counterweights when turning on the lathe like you suggested.  This afternoon got some more done, cut a slot on each side of the blank to slab off the bulk of the extra material above the mounting lug flanges - still left some extra material to be safe. Then chain drilled along the bottom of the slab
(https://i.postimg.cc/x8pT71BL/IMG-6426.jpg)
and finished off the cuts with a hacksaw - the bandsaw wont go just partway in and stop level due to how it is hinged.
(https://i.postimg.cc/JhC7SgYY/IMG-6427.jpg)
That took the blank from 4.6 pounds to 3.4. It will probably be closer to 1 when it is finished. Then cleaned up the flange to thickness on the mill:
(https://i.postimg.cc/bYmJdmdd/IMG-6428.jpg)
To get the mounting bolts and washers to go in to the holding plate, it was necessary to take the area behind them closer to the finished dimensions:
(https://i.postimg.cc/4Nn3cphP/IMG-6430.jpg)
Now, when going for a test fit, the elves insisted on helping by holding up one end, but Elfric found out the hard way it was too heavy. Naturally Elfred just freaked out instead of lifting it off him...   :facepalm:
(https://i.postimg.cc/HkysZHz7/IMG-6431.jpg)
So, I finsihed running in the bolts myself:
(https://i.postimg.cc/sD8g41Yr/IMG-6432.jpg)
Nice snug fit, takes a few taps with a plastic mallet to get the part on/off the studs, so no worries about it wobbling about. I think next time I'll be able to start milling the profile of the outside of the cylinders in.
 :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Johnmcc69 on January 05, 2020, 01:20:11 AM
 :ThumbsUp:
 Great progress Chris! Looking good!
 :popcorn:
 John
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Steamer5 on January 05, 2020, 07:17:45 AM
Hi Chris,
 Off to a racing start.....the elf’s must still be fueled up on Xmas goodies!

When you need to chop a bit of the side with the bandsaw a secondary vice held at an angle allows the work to be held so that you can get down as far as you need

Looking good!

Cheers Kerrin
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 05, 2020, 04:42:12 PM
Hi Chris, While the ElfSHA investigation is underway for the Elfric to pancake conversion incident   :mischief: I was thinking about the angled lugs on the cylinders.  :atcomputer: Do you plan to just mill material away, leave two "islands" standing, then sculpt / drill them from the solid, or were you going to make them separate and solder them into pockets? Just fine either way, the brain just got working after the turkey coma cleared over the holidays, and was working ahead a bit on "how would I tackle that one?" for the lugs. One thought - if you tried to mill them from solid and something went wrong some way, you could always use the pockets/separate block method as a plan B fix. Just food for thought.  :popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 05, 2020, 05:11:04 PM
Hi Chris,
 Off to a racing start.....the elf’s must still be fueled up on Xmas goodies!

When you need to chop a bit of the side with the bandsaw a secondary vice held at an angle allows the work to be held so that you can get down as far as you need

Looking good!

Cheers Kerrin
Took me a few minutes to visualize that, but the brain finally woke up and saw it. Um, bad pun snuck in there, it could see it! I've done something similar on the mill, never thought about it for the bandsaw.  Thanks!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 05, 2020, 05:16:17 PM
Hi Chris, While the ElfSHA investigation is underway for the Elfric to pancake conversion incident   :mischief: I was thinking about the angled lugs on the cylinders.  :atcomputer: Do you plan to just mill material away, leave two "islands" standing, then sculpt / drill them from the solid, or were you going to make them separate and solder them into pockets? Just fine either way, the brain just got working after the turkey coma cleared over the holidays, and was working ahead a bit on "how would I tackle that one?" for the lugs. One thought - if you tried to mill them from solid and something went wrong some way, you could always use the pockets/separate block method as a plan B fix. Just food for thought.  :popcorn: :popcorn: :popcorn:
Yeah, those ElfSHA investigators love the paperwork, fortunately the sheets are very small so a good sneeze and they are gone!   :LittleDevil:

I am planning on getting the angled side lugs out of the same big block. Not sure exactly how they will be milled yet, will sneak up on those as I shape the outsides of the cylinders. I always have the fallback of using the rotary tool and hand carving the outsides of them. The tilting table with the small mill vise can hold it for drilling the angled hole, that part should not be a problem.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 05, 2020, 05:30:37 PM
Today started nibbling out the cylinder block from the big blank. With the block held on the rotary table with the fixture plate, the first cylinder is centered over the rotary table, so turning the table mills concentric to the future bore. Started out by taking off as much as I could above the angled lug that will stick out in the middle of the cylinder:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6433.JPG)
And yes, the side nearest the camera is supposed to be inset. One side of the block is flush with the cylinder, one is inset.
Then lowered the cutter and took off another section. Here, I had to leave stock on one side to make the angled lug later on.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6434.JPG)
And another layer to the cake took it down as far as the cutter would reach:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6435.JPG)
I have a couple of choices on how to do the last bit at the bottom. I can get a longer 3/8" cutter that will reach, use the boring head with a longer cutter, switch the rotary table up on end and mill from the side, or just saw off enough so it will turn in the lathe.

I am leaning away from the boring head approach, that could be iffy with an interrupted cut. I will need to finish the sides of the cylinder with the rotab up vertically anyway, since the middle of the sides are recessed, so that is the most likely way. I may need to trim the corners of the fixture plate a little to let the end mill holder clear the plate.


I'll go ahead and cut the other end of the blank to the current position as I let the elves deliberate that one.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 05, 2020, 05:31:40 PM
Oh, and I have switched over to the Coppermine image server for the pictures in my previous post - hopefully all three pictures show up for everyone?
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Jasonb on January 05, 2020, 05:36:11 PM
Could you just rough trim the remaining material for now and then once it has had the two bores done you can easily locate the block by the bores the other way up and do the final rounding off.

looking good so far, yes pictures show OK
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: kvom on January 05, 2020, 05:42:33 PM
I have a whole drawer full of long 3/8" HSS endmills I got in a batch buy and will never use.  I can mail you a couple.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 05, 2020, 05:44:04 PM
Could you just rough trim the remaining material for now and then once it has had the two bores done you can easily locate the block by the bores the other way up and do the final rounding off.

looking good so far, yes pictures show OK
Thanks for checking on the pictures!

That was kind of what I was thinking with the last option of 'saw enough to turn on the lathe'. In order to finish the bores on that side I'll need to make an arbor to fit the bores - the bores are slightly larger at the very end to allow them to be threaded for the end caps, which screw down inside the bores (first time I've done an engine that does not have end caps which bolt onto the ends). I'll need to put the rotab on end to do the center sections of the cylinders anyway, might be easiest to trim it then, though that means trimming right to the fixture plate surface. Maybe some of each...

 :thinking:    :noidea:    :headscratch:    :thinking:
Good place to break for lunch!!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 05, 2020, 05:45:16 PM
I have a whole drawer full of long 3/8" HSS endmills I got in a batch buy and will never use.  I can mail you a couple.
Wow - that would be great!  I owe you a batch of cookies (if I can get them past the elves!) - will PM you the address.   :cheers: :cheers: :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: gary.a.ayres on January 05, 2020, 10:37:27 PM
Wow... you don't hang around. Prolific or what!?

This looks great - looking forward to seeing it develop.

 :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 06, 2020, 07:00:12 PM
Wow... you don't hang around. Prolific or what!?

This looks great - looking forward to seeing it develop.

 :popcorn:
It was good to start on this one, been wanting to build a Stanley engine for quite a while now!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 06, 2020, 07:10:06 PM
No work on the cylinder block (yet) today, just got home and in the mail was a box from Jawstec.com that I ordered last week. Something I've needed for a long time but never got around to making is a set of spiders for the 3 and 4 jaw lathe chucks, to help line up parts that don't reach the back wall of the chuck or sit in the center hole. I saw some that someone else made, and realized that I could get them 3D printed in the different thicknesses I wanted. The MJF process that they use results in a solid part that is strong enough, and it looks like the thickness dimensions are accurate enough across the faces. All I needed to do was clean off a couple of ridges in the openings where some stray bits had clung. I made up a pattern in Fusion and sent them the .step file, got this pile back (the chucks were mine! )
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6436.JPG)
Three thicknesses of each, can stack them for varying the placement of the part. They have a recess at the center, visible in a couple like the one in lower right corner, that let the thinnest jaw clear when the jaws are reversed. Have not used them yet, but I am sure it wont be long...


If any of you with Sherline chucks want to print them, I've attached the .step file for them.    :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 06, 2020, 08:22:25 PM
Nice looking Romulan and Klingon throwing stars Chris! Could be useful as a disciplinary tool for shop elves, too, in case of excessive egg nog.   :hellno: Uh, maybe not.

 :Lol:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 06, 2020, 08:49:56 PM
Nice looking Romulan and Klingon throwing stars Chris! Could be useful as a disciplinary tool for shop elves, too, in case of excessive egg nog.   :hellno: Uh, maybe not.

 :Lol:
Yeah, maybe not, they find anything hidden eventually, and are getting too good at picking locks.   :o
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 06, 2020, 08:55:18 PM
Back in the shop this afternoon, got the other end of the cylinder block up to the same point:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6437.JPG)
The area marked with the 'X' needs to come out next, it is a slightly recessed flat area that will have the exhaust ports in it eventually.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 06, 2020, 09:05:52 PM
You've done some hogging! Looks good.  :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 07, 2020, 12:04:34 AM
You've done some hogging! Looks good.  :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
Its getting a lot lighter, still a ways to go but getting there!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 07, 2020, 12:13:23 AM
More done this afternoon - got the side panel taken down...
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6438.JPG)
and then nibbled off the bottom corners on the bandsaw - the 3D printed piece is next to it to show where things are going:

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6440.JPG)
The part is down to 2.8 pounds, quite a ways from the 4.6 pound block that it started out as. According to Fusion, it will be down around 1 pound when done.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: gbritnell on January 07, 2020, 12:36:05 PM
HI Chris,
I'm sorry I haven't commented yet but have definitely been following along. In following your other builds I have several times made comments about how impressed I am with the work yo do with the Sherline equipment. In a word, outstanding! Anymore 1144 is my go to material for mild steel. I'm truly impressed with how nice your long side cuts on the cylinders are knowing the rigidity it takes to accomplish that.
When I open up the forum each day I can't wait to see what new fixturing or machining you have done.
I have a friend with a Stanley conversion in an old Packard and I'm going to send him the link to the thread. Being a steam guy and his first car being a Morris he'll get a kick seeing that one.
Great work!
gbritnell
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 07, 2020, 03:05:55 PM
HI Chris,
I'm sorry I haven't commented yet but have definitely been following along. In following your other builds I have several times made comments about how impressed I am with the work yo do with the Sherline equipment. In a word, outstanding! Anymore 1144 is my go to material for mild steel. I'm truly impressed with how nice your long side cuts on the cylinders are knowing the rigidity it takes to accomplish that.
When I open up the forum each day I can't wait to see what new fixturing or machining you have done.
I have a friend with a Stanley conversion in an old Packard and I'm going to send him the link to the thread. Being a steam guy and his first car being a Morris he'll get a kick seeing that one.
Great work!
gbritnell
Thanks very much George!  The 1144 cuts nice and smooth as long as the cutter is nice and sharp, it does seem to be hard on the cutters, dulling them a little more quickly over time than the 303 does. The fixtures to hold things are a lot of the fun for me, love puzzles!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 07, 2020, 06:13:24 PM
Continuing to niblle away at the outside of the cylinder block 'casting'. Marked out the shape of the base flanges, and held the part upside down in the 4-jaw on the rotary table (just need to get the angles lined up, part does not need to be centered on the cylinders) to start on the angled sections of the flanges:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6444.JPG)
Next will take out the recessed flat in the centers of each side...
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: mnay on January 07, 2020, 08:55:39 PM
I am also very impressed with the work you do on those small machines.  Great looking engine.  The machining is beautiful.  Can't wait to see it run.
Here is a link to a similar engine that I built from Live Steam Magazine scaled up 1.5.  I was quite a challenge and I have a full size Bridgeport machine. 
https://www.youtube.com/watch?v=Orpe3QFdWLQ
Keep it coming, very exciting build.  I will be following along.
Mike
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 07, 2020, 09:43:09 PM
I am also very impressed with the work you do on those small machines.  Great looking engine.  The machining is beautiful.  Can't wait to see it run.
Here is a link to a similar engine that I built from Live Steam Magazine scaled up 1.5.  I was quite a challenge and I have a full size Bridgeport machine. 
[youtube1]https://www.youtube.com/watch?v=Orpe3QFdWLQ[/youtube1]
Keep it coming, very exciting build.  I will be following along.
Mike
Nice engine Mike! Glad to have you along for the ride. I think that is the design where they angled the valve faces inside the steam chest to allow milling the ports?
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 07, 2020, 09:45:46 PM
Last bit of steel nibbling for the day, got the bottom flanges angled and opened up in the center section:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6447.JPG)
With all that material out of the way, should make finishing up the rounded ends easier. I am only taking the cylinder sides down to the diameter of the upper/lower flanges at this point, still need to do the narrower waist sections. Those will be done with the rotary table tilted up vertically.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Don1966 on January 08, 2020, 12:54:06 AM
Dog you make chewing metal look soooooo easy and working on such a small machine very intuit and impressive. Nice craving of a chunk of metal i love it....... :Love:



 :drinking-41:
don
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 08, 2020, 09:21:24 PM
Some more nibbling away on the cylinder block - today with some longer end mills that I traded for with Kirk (many thanks - really helps to reach the whole part). I got the sides down all the way:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6448.JPG)
and then trimmed the top surface to give it the recess between the cylinders. The boss in the center needs to be rounded, it gets a hole with a plug for access into the port chambers later on.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6451.JPG)
Next I will do some thinking on how best to carve out the angled flanges on the sides of the cylinders, though that may wait until the middle sections of the cylinder walls are recessed since the flanges extend down to that level...   :noidea:    Yeah, that sounds like a plan... So, next will switch the rotary table up to the vertical position and start recessing the sides in!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 08, 2020, 09:50:19 PM
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Ye-Ole Steam Dude on January 08, 2020, 11:05:19 PM
Hello Chris,

Just beautiful on all the machining.

Have a great day,
Thomas
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: zeeprogrammer on January 08, 2020, 11:24:15 PM
With all the progress that Chris makes, I'm beginning to wonder how he has time to make the cookies for his elves.
The conspiracy part of me suspects he's buying them...or he has a few 'friends' making them for him.  :LittleDevil:

I don't believe he has elves making them. That's too much like 'pay me by having me bake my own cookies (pay)'.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 08, 2020, 11:29:34 PM
With all the progress that Chris makes, I'm beginning to wonder how he has time to make the cookies for his elves.
The conspiracy part of me suspects he's buying them...or he has a few 'friends' making them for him.  :LittleDevil:

I don't believe he has elves making them. That's too much like 'pay me by having me bake my own cookies (pay)'.
Boy, I hope they don't see that post, had them baking on thier breaks!   :LittleDevil:


Sigh. Back to making big batches and filling the freezer...
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Flyboy Jim on January 09, 2020, 02:37:08 AM
With all the progress that Chris makes, I'm beginning to wonder how he has time to make the cookies for his elves.
The conspiracy part of me suspects he's buying them...or he has a few 'friends' making them for him.  :LittleDevil:

I don't believe he has elves making them. That's too much like 'pay me by having me bake my own cookies (pay)'.

Here's my theory Zee: Chris certainly knows the ins and out of both software and hardware and is a great designer.  Also, just today, he was over nosing around in the "Additive Machining" forum about using different materials for 3D printing. I think he's designed a 3D cookie printer!  :thinking: I'm hoping I get to be a "beta tester".  :cartwheel: Maybe even an early investor...............there should be a lot of "dough" to be made in this endeavor.  :LickLips:

Jim
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 09, 2020, 02:46:10 AM
With all the progress that Chris makes, I'm beginning to wonder how he has time to make the cookies for his elves.
The conspiracy part of me suspects he's buying them...or he has a few 'friends' making them for him.  :LittleDevil:

I don't believe he has elves making them. That's too much like 'pay me by having me bake my own cookies (pay)'.

Here's my theory Zee: Chris certainly knows the ins and out of both software and hardware and is a great designer.  Also, just today, he was over nosing around in the "Additive Machining" forum about using different materials for 3D printing. I think he's designed a 3D cookie printer!  :thinking: I'm hoping I get to be a "beta tester".  :cartwheel: Maybe even an early investor...............there should be a lot of "dough" to be made in this endeavor.  :LickLips:

Jim
Jim, you may well be right. Or not. You are ALWAYS welcome to invest though!   :LittleDevil:     
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 09, 2020, 05:06:46 PM
This morning started out by figuring out how to mount the rotary table vertically to mill the cylinder side recesses. The part hits the table if the rotab is mounted directly to the table, so I wound up stacking in the 1-2-3 blocks under it to raise it up.Then lined things up and took a pass down the ends for a stop cut, and went back and forth across the field every few degrees:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6452.JPG)
Just like with the bearing caps, taking a pass every few degrees of rotating the part leaves a series of flats, but they are close together so it looks round. Here is a closer view:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6453.JPG)
The bottom end of the mill goes into the flat surface a little ways, that is part of the design - gives room for the mounting bolts and reduces the amount of metal in the 'casting'.
With the first side done, the part was cranked around so the cutter was on the back side, to do the same there. On the second side, the angled mounting lug is in the center of the field, so that meant doing the two sides and across the bottom separately. This is a place where it is handy that the mill is on a base that I can slide around on the bench, I turned it 90 degrees to see the back while doing these cuts. On both sides, it was necessary to remove one of the mounting screws to get into the inside corners.

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6454.JPG)
Here is the part so far, with the recesses on one end of the block cut in. There is more to be done around the angled lug, but I will bring the other end up to the same point before changing the setup.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6457.JPG)

Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 09, 2020, 07:03:23 PM
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Kim on January 09, 2020, 09:05:13 PM
Enjoying the show...  :popcorn: :popcorn:
There's a lot of work in this little guy!
Kim
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 09, 2020, 09:06:43 PM
Thanks Kim/CNR, and this is just 1/4 of the way throught the first part of the engine!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: b.lindsey on January 09, 2020, 10:51:50 PM
Nice idea using the 123 blocks to raise the RT.

Bill
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 09, 2020, 11:02:41 PM
Nice idea using the 123 blocks to raise the RT.

Bill
I was going through the bar stock, looking for something the right height, looked at the tilt-table (not rigid enough when part hanging out the far end), finally realized I had the 1-2-3 blocks, they were perfect. Had a handful of 10-32 bolts just the right length, or would need to use threaded rods and nuts.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 09, 2020, 11:10:01 PM
Okay, got both cylinders recessed...
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6458.JPG)
and took away the bulk of the material next to the angled lug. That will get drilled later on, and finish shaping the outside of the lug by hand.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6460.JPG)
So, a little cleanup to do on the end radii of the flanges next to the holding plate, then I think it will be ready to switch back to the mill vise to do the shaping on the flat side panels. So far so good!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Don1966 on January 09, 2020, 11:43:43 PM
 :drinking-41:......... :Love:........awesome....



 
Don
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Flyboy Jim on January 10, 2020, 02:33:51 AM
Lots of woodcarving experience showing here.  :ThumbsUp:

Jim
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 10, 2020, 03:38:55 PM
This morning got the base flanges taken down to shape under the angled flanges - these sections could not be reached from the top since those angled flanges were in the way.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6462.JPG)
That finished off the shaping of the outside to be done on the rotary table (which worked out great  :cartwheel: ) so the part was shifted back to the mill vise, with the base flat against the fixed rear jaw. Then, was able to square up the inside corners of the base flanges on the first side:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6463.JPG)
The blue lines across the flat face indicate where a shallow recess needs to be milled, to take the cover plate that will hide the internal passages that will need to be milled to connect the piston valves to the cylinders. Here is the 3D printed part with the cover removed to show what I am on about:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6464.JPG)
The openings at the ends of the cover plate are where the exhaust manifold bolts on, the pairs of openings near them are for milling passages to the cylinder ends from the valves. The steam inlet is on the opposite side of the block, that can just be drilled in. This cover plate and the passages are the changes that I had to make to the original design to be able to make it from bar stock - these passages would have been part of the casting in the real thing.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 10, 2020, 07:13:18 PM
More work in the shop this afternoon, got the slot milled in for the cover plate:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6465.JPG)
Nice sliding fit...
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6466.JPG)
and also milled the other side to form the bosses for the steam inlet fitting, these were done etch-a-sketch style to the drawn lines.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6467.JPG)
That wraps up the shaping on the outside, so took it up to the rotary tool and sanders to clean up some of the inside corner edges and the angled lugs, and smoothed out a lot of the tool marks:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6468.JPG)
Last step on the outside will be to drill the holes in the angled lugs on the sides of the cylinders, then I think it will be time to start boring holes! Two large ones for the cylinders, two smaller ones for the valves.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Dan Rowe on January 10, 2020, 07:34:28 PM
Wow nice casting   :NotWorthy:... I should have practiced my Etch-a-Sketch a bunch more :lolb:

Cheers Dan
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 10, 2020, 07:55:42 PM
"Last step on the outside will be to drill the holes in the angled lugs on the sides of the cylinders, then I think it will be time to start boring holes! Two large ones for the cylinders, two smaller ones for the valves."

You make it sound as if the next step will be boring.  :Lol:  I never find your posts boring, even when they involve making holes!  :popcorn: :popcorn: :popcorn:

Cylinder looks great!  :ThumbsUp: :ThumbsUp: :ThumbsUp: :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Roger B on January 10, 2020, 07:59:38 PM
Just catching up with this build  :)  :) As ever you move much too fast for me  :old: Excellent project  :praise2:  :praise2:

Going back to Steam Boy Willy's post I love the steam Morris Minor  :)  I once had the chance to drive a Sentinel Steam Wagon, totally different from a IC engine vehicle  ::)
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Don1966 on January 10, 2020, 08:51:40 PM
The hands of an artist just peachy Dog......... :Love:





 :drinking-41:
Don
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 10, 2020, 09:24:02 PM
Thanks guys!

One last bit of carving for the day, the angled lugs on the sides. Went back to the 3D CAD model and measured the angle, and got it set up in the mill vise to match. Skimmed the surface with and end mill, and drilled/tapped each for a 6-32 bolt.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6472.JPG)
then milled the side of the lug to match the angle:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6473.JPG)
That was followed by a little more hand work to blend that flat into the sides of the lug. I think that finishes off the work on the outside of the part for now, there will be more drilling/boring/milling on the bottom for the valve glands, but I want to do that when set up for the valve holes so it all aligns. Next, the cylinder bores can begin...
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Steamer5 on January 11, 2020, 07:32:20 AM
Hi Chris,
 I was so exhausted reading what you have been up to I had to have a soothing  :DrinkPint: oh ok  :DrinkPint: :DrinkPint: to go with the  :popcorn:.

Master class in metal carving, coming along in leaps & bounds, really enjoying the progress!

Cheers Kerrin
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 11, 2020, 02:04:31 PM
Looking great Chris.  :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 11, 2020, 09:10:50 PM
And now the boring part begins. (Thought I'd beat CNR to that pun).  Got the cylinders drilled with 1/2" starter holes on the drill press (accuracy doesn't matter that much for these, and it has the capacity to do the bigger holes). Then mounted it back on the faceplate and set up the lathe with the riser block.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6476.JPG)
As you can see, a stack of brass plates was needed to counterbalance the offset cylinders (thanks for the suggestion of putting in the extra holes for that! ).  I had to put a spacer under the taller toolpost, the Warner boring bar has its cutting edge lower than the Sherline ones do, relative to the centerline of the bars.


Got a start boring out the first side, so far am up to a 3/4" diameter on the way towards 1". I am thinking of stopping slightly smaller than that to leave the walls a little thicker than absolute true scale.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6478.JPG)
When I switch over to the second cylinder, will have to remove one of the balance weights since there will be less metal offset then.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 11, 2020, 11:19:20 PM
Another session this evening saw the first cylinder out to size, still needs lapping/polishing.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6479.JPG)
and turned the block end for end to get ready for the second cylinder:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6480.JPG)
As expected, the counterwieghts needed adjusting - pulled one out and substituted a smaller block, that seemed to get it to a decent balance again. As with the first side, I had to take a few swipes with a file on the very tip of the angled side lug to get it to clear the ways, it was just ticking into the middle of the bed.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 11, 2020, 11:41:18 PM
Cylinders are looking great Chris!  :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:

Glad the stacked C-weights are working out. Saves on earthquake insurance when your turnings are balanced better!  :Lol:

The lug sculpting looks good. When it was ticking on the bed of the lathe, did you calculate the amount to remove, or just eyeball it?
           
   BAD PUN ALERT       WHOOOOT! WHOOOOT! WHOOOOT!                      BAD PUN ALERT       WHOOOOT! WHOOOOT! WHOOOOT!     BAD PUN ALERT       WHOOOOT! WHOOOOT! WHOOOOT!               BAD PUN ALERT       WHOOOOT! WHOOOOT! WHOOOOT!   

You could have used a lug orithm for the calculation..........  :facepalm:    :Lol:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 11, 2020, 11:59:11 PM
Cylinders are looking great Chris!  :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:

Glad the stacked C-weights are working out. Saves on earthquake insurance when your turnings are balanced better!  :Lol:

The lug sculpting looks good. When it was ticking on the bed of the lathe, did you calculate the amount to remove, or just eyeball it?
           
   BAD PUN ALERT       WHOOOOT! WHOOOOT! WHOOOOT!                      BAD PUN ALERT       WHOOOOT! WHOOOOT! WHOOOOT!     BAD PUN ALERT       WHOOOOT! WHOOOOT! WHOOOOT!               BAD PUN ALERT       WHOOOOT! WHOOOOT! WHOOOOT!   

You could have used a lug orithm for the calculation..........  :facepalm:    :Lol:
Okay, that pun just won your shop elves a full set of late night yodeling lessons...!  With the kazoo upgrade.   :facepalm2:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Craig DeShong on January 12, 2020, 12:24:50 AM
It’s truly enjoyable watching these cylinder “castings” emerge from a block of 9f metal.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Flyboy Jim on January 12, 2020, 03:01:34 AM
Watching that assembly spinning around on your Sherline lathe must of been quite a site!  :) Coming along nicely, Chris.  :popcorn:

 :cheers: Jim
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 12, 2020, 03:00:32 PM
Watching that assembly spinning around on your Sherline lathe must of been quite a site!  :) Coming along nicely, Chris.  :popcorn:

 :cheers: Jim


Definitely keeping my fingers back from there, it feels like a table fan with all the air it throws! The boring bar is giving a nice finish with a slower speed and a slow final feed rate, will just need a finish lapping. Weighed the part yesterday, it was down to 1.8 pounds.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 12, 2020, 03:02:49 PM
It’s truly enjoyable watching these cylinder “castings” emerge from a block of 9f metal.
Thanks Craig, its fun to see it emerge from the block. I want to do some tests on scrap 1144 to see what finish the little airbrush sandblaster gives the outside, see if it gives a scale casting effect.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 12, 2020, 03:17:39 PM
The elf yodeling with kazoo accompanying it all night was a little rough, but I deserved it!  :Lol:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 12, 2020, 03:24:26 PM
The elf yodeling with kazoo accompanying it all night was a little rough, but I deserved it!  :Lol:
Next time they will add the Alvin-and-the-chipmunks impersonations singing opera...   :lolb:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: kvom on January 12, 2020, 04:02:48 PM
Are there holes in the fixture to allow boring all the way through?
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 12, 2020, 05:12:37 PM
Re Alvin - I consider myself warned!     :Lol:  MUCH better quality puns ahead. :atcomputer:

I think you may have been a torture system designer in a previous incarnation......although you didn't mention Italian opera sung in Mandarin Chinese at 2x speed yet!   :shrug:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 12, 2020, 05:44:31 PM
Re Alvin - I consider myself warned!     :Lol:  MUCH better quality puns ahead. :atcomputer:

I think you may have been a torture system designer in a previous incarnation......although you didn't mention Italian opera sung in Mandarin Chinese at 2x speed yet!   :shrug:
:LittleDevil:
Your favorite rock n roll tunes, sung at 1/4 speed by Barry Manilow.... over and over and over....
Mwuhahahaha!!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 12, 2020, 05:47:13 PM
Are there holes in the fixture to allow boring all the way through?
Yes - the fixture has a recess in the center slightly larger than the bore of the cylinder so I can take the boring bar all the way through the part without bottoming out. Learned that one the hard way on a previous project!
The recess shows in this picture:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6425.JPG)
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 12, 2020, 05:54:05 PM
Productive morning - got the second cylinder bored out to match the first one:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6481.JPG)
Then, in prep for threading the ends for the cylinder caps, cut in a recess in the ends so the threads will clear the piston as it slides in during assembly.

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6482.JPG)
Now, I could start threading this end now, but I will need to add the same recesses at the other ends of the bores, and have a way to hold the parts during that work and the threading. So, I think I am going to make the arbor for that first. The lugs I am using to hold the part on the fixture are only at the bottom end, so if I turn the part around it will have nothing to bolt it in place. The recess that KVOM brought up in the previous post (nice lead in!) will get a length of bar stock turned to a snug fit and fitted with an expanding end. That way I can work on both ends of the cylinder with everything concentric.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 12, 2020, 07:37:22 PM
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:

This post is approved by the coalition for better ear protection, Barry Manilow Proper Playback Speed special interest group.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 12, 2020, 08:36:32 PM
:ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:

This post is approved by the coalition for better ear protection, Barry Manilow Proper Playback Speed special interest group.
That oughta confuse the swarf out of those who skipped a few posts!   :lolb:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 12, 2020, 08:48:21 PM
Okay, definitely decided to make the arbor for the holding fixture (cannot use an arbor all by itself, no way to balance it). Started by turning the arbor shape, leaving a bit at the base to be shaped to fit the fixture. This was a great time to test out the lathe chuck spiders that I had 3D printed recently, worked out great! The outer end was drilled/tapped for a long 10-32 SHCS, then the end of the hole drilled out to be a little smaller than the head of the screw. This makes the spot where the taper on the screw pushes the sides out, expanding them to clamp on the bore of the cylinder. The arbor was turned to be a close but not tight fit.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6483.JPG)

Then turned the part around and turned the base end to fit into the recess in the fixture plate, with a smaller boss that fits in the through hole. This end was drilled/tapped for a 1/4-20 bolt, with a heavy washer to span the through hole. The boss on the arbor is short enough that it does not project out of the hole, so it can all be drawn up tight.

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6484.JPG)

Here is the arbor bolted to the fixture - a long socket fit through the hole in the faceplate, so no need to disassemble the fixture. You can see the end of the SHCS, which I spun in the lathe to file a taper on it that just fits in the hole in the arbor. The arbor was also sawn part way down to give it the ability to expand out as the screw is run in. The screw extends well below the saw cut.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6486.JPG)

And the whole thing together and on the lathe. Bit of luck, running in one of the small screws/washer one of the mounting posts, it keeps the cylinder from being able to shift back and forth. With everything tightend down and the cylinder turned to rest on the back mounting post, it is all nice and secure. So, next time I can turn the counterbores at the ends of the cylinders and start threading them.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6488.JPG)
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 12, 2020, 10:35:34 PM
Clever and well done on the mandrel!  :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Johnmcc69 on January 12, 2020, 11:10:43 PM
 :ThumbsUp:
 Nice bit of tool making there Chris!

 John
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Steamer5 on January 13, 2020, 07:15:37 AM
Nice work Chris!
On the work holding the other way round.......what’s wrong with long bolts & maybe spacers between the lugs & the plate?


Edit
Hmmmmm for some reason, likely me, a couple of post were missing, ok the mandrel will do just fine

Cheers Kerrin
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 13, 2020, 03:29:39 PM
Nice work Chris!
On the work holding the other way round.......what’s wrong with long bolts & maybe spacers between the lugs & the plate?


Edit
Hmmmmm for some reason, likely me, a couple of post were missing, ok the mandrel will do just fine

Cheers Kerrin
I thought about that, but it would have had a tendency to shift and twist, it needs the arbor to hold it in alignment. Could have used a plain arbor with the bolts, the expanding one is quick to make and I didn't have bolts long enough, so it made the decision for me.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: mnay on January 13, 2020, 05:02:08 PM
Sure looks nice.  Cant wait to see it run.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 13, 2020, 08:17:40 PM
Sure looks nice.  Cant wait to see it run.
Niether can I - but I guess we both will, lots more parts still to go!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 13, 2020, 08:30:12 PM
Bunch more done today - started out by turning the recess in the ends of the cylinders at the base end,
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6490.JPG)
Then set up the threading attachment on the headstock. The way Sherline does it is to add a set of hand-cranked gears to the headstock, with a connection down to the leadscrew. Not the most robust setup, but it works, and they were able to add it to a machine designed without it (at least that is my assumption).

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6492.JPG)
I have it set up for a 0.9mm pitch thread - with the riser in place, the imperial pitch gears dont reach so you need to use a metric pitch or buy more of the largest gears. I have a cutter set up for threading, but not a holder that will make it around the corner to the inside, so I used a boring bar that has a matching angle to the tip (got lucky on that). A number of shallow passes (still a couple to go in this picture) ...
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6493.JPG)
and it took the threads in to meet the shoulder. Did both cylinders, then flipped the part around and did the top ends the same way:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6496.JPG)
Worked out pretty well, a few thou per pass, adding drops of oil as I went. Here is the part so far with all the cylinder threads cut:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6497.JPG)
As I mentioned before, I wanted to try the little sandblaster (looks like an airbrush) on the part - did some tests on some scrap, then moved to the real part. It does get rid of the shine, and makes the toolmarks less obvious. In person, looks more like a painted finish. It does show up some areas that need more sanding/filing. Those five bosses in the center will get drilled and covered with the inlet manifold.

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6498.JPG)
Next I think I'll make and thread the cylinder caps, while I am in the threading zone...
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: rspringer on January 13, 2020, 09:02:48 PM
Chris builds an entire engine.  I make a few bolts.  Hope you make it to Cabin Fever.  It was on my list to do this year but can't maker it. 
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 13, 2020, 09:18:15 PM
Chris builds an entire engine.  I make a few bolts.  Hope you make it to Cabin Fever.  It was on my list to do this year but can't maker it.
Wish I could get to CF this year, but I need to stick close to home for family stuff. Next fall you need to get up to the logging museum in Maine and drive the Lombards!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 13, 2020, 09:29:27 PM
Threading and sandblasting look great! Looks like a cylinder casting now, one done with a brushed graphite / alcohol wash on the sand mould before core setting and pouring!   :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Flyboy Jim on January 13, 2020, 09:30:51 PM
I'm enjoying your THREAD on this build Chris.   :ROFL: Nice work.  :ThumbsUp:

Jim
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 13, 2020, 09:34:10 PM
I'm enjoying your THREAD on this build Chris.   :ROFL: Nice work.  :ThumbsUp:

Jim
Uh oh, CNR's influence is spreading! Used to be just Zee... sigh... Time to send out more opera-yodeling/kazoo-playing elves!   :ROFL:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 13, 2020, 09:35:02 PM
Careful Jim, Chris' punishments for iffy puns are getting more severe. I'm still hearing kazoo noises in my head after the last one I got!  :Lol:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: propforward on January 13, 2020, 09:49:10 PM
The work in this thread is humbling. But inspiring as well.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Craig DeShong on January 13, 2020, 10:15:57 PM
Beautiful work Chris.  I'm still following along.  :popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: zeeprogrammer on January 13, 2020, 11:10:42 PM
I missed the business of the little sandblaster (airbrush). Can you point me to that?

...Used to be just Zee... sigh... Time to send out more opera-yodeling/kazoo-playing elves!   :ROFL:

I wish they would leave. They just sit around expecting cookies...and the incidence of "where did I put that" has gone up.

I can't recall if you said...are you planning a chassis around that thing? And wheels?  ;D
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 13, 2020, 11:39:05 PM
I missed the business of the little sandblaster (airbrush). Can you point me to that?

...Used to be just Zee... sigh... Time to send out more opera-yodeling/kazoo-playing elves!   :ROFL:

I wish they would leave. They just sit around expecting cookies...and the incidence of "where did I put that" has gone up.

I can't recall if you said...are you planning a chassis around that thing? And wheels?  ;D
Hi Zee,


This is the little sandblaster, got it several years ago. Runs okay, it blasts a very small pattern, like a airbrush. I got it for removing paint and decals on train cars, works on metal too. Not removing much, but does knock off fine toolmarks. It works best with its hopper mostly full.


https://www.amazon.com/gp/product/B00A031COU/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

Your shop elves sound like they are bored waiting for your shoulder to heal up and start work.

I am not planning on making the rest of the car, at 1/4 size it would be huge. Fun, but huge. My shoulders couldn't do that either!

 :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Steamer5 on January 14, 2020, 03:54:16 AM
Hi Chris,
 No bolts long enuff, so expanding arbour works for me!

Nice work on the threading, those guys that power thread just don’t know the joy of hand threading!

At this rate you’ll have all of us exhausted & a running engine by the end of the month!

Zee, what do we want to see next?

Cheers Kerrin
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Flyboy Jim on January 14, 2020, 04:18:29 AM

This is the little sandblaster, got it several years ago. Runs okay, it blasts a very small pattern, like a airbrush. I got it for removing paint and decals on train cars, works on metal too. Not removing much, but does knock off fine toolmarks. It works best with its hopper mostly full.

https://www.amazon.com/gp/product/B00A031COU/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1


Well............ that's just great!  :thinking: Something else to add to my already bulging Amazon Wishlist. I have a bigger sandblaster, but I really like the looks of this one for small areas.  :)

Did I  mention that I'm a really strong willed person? I've always been able to resist anything..........................except temptation!  :lolb:

Jim
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: ddmckee54 on January 14, 2020, 05:27:36 PM
Since you got the little sandblaster several years ago, how much have you used it and how's the nozzle been holding up?

Sandblaster nozzles are usually considered to be a consumable item, the same as MIG and plasma cutter tips.

Don
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Roger B on January 14, 2020, 05:59:28 PM
Still following along  :ThumbsUp:  :ThumbsUp: I like the threading setup  :praise2:

I have taken Note of the music comments but am not sure I like the Tone of the conversation   :toilet_claw:  :wine1:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 14, 2020, 07:30:49 PM
Since you got the little sandblaster several years ago, how much have you used it and how's the nozzle been holding up?

Sandblaster nozzles are usually considered to be a consumable item, the same as MIG and plasma cutter tips.

Don
It probably only has an hour or two of use on it, nozzle is fine so far. Have had to unscrew it a couple of times to clear an oversized piece of sand but looks okay still. I run it off my main compressor, it came with connection for airbrush one.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 14, 2020, 07:31:20 PM
Still following along  :ThumbsUp: :ThumbsUp: I like the threading setup  :praise2:

I have taken Note of the music comments but am not sure I like the Tone of the conversation   :toilet_claw: :wine1:
That comment rings a bell...   :Lol:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 14, 2020, 10:32:20 PM
This afternoon saw some more shop time, got started on the cylinder top end caps. It was a bit of a guesstimate as to what diameter to start the threads at since the internal threads were not done with a tap, but it came out pretty close. The first one needed to be taken down below the point where the cutter was making full-depth cuts and the peaks of the threads went sharp. So, on the second one I took the blank down that extra 8 thou and it worked out quite well. The cap works on either side, so I know that at least the internal threads were done consistantly - this should make doing the bottom caps with the piston rod guides go easier. Here is the first cap blank being threaded:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6500.JPG)
and at the point where it screwed into place:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6501.JPG)
Second one went much faster:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6502.JPG)
Tomorrow I will likely do the same for the blanks on the bottom end of the cylinder, then start shaping the caps and part them off to length.


Title: Re: Chris's Build of a Stanley 735 Engine
Post by: kvom on January 14, 2020, 11:37:35 PM
I think I'd have done the external threads first for use as a gauge for the internal.  You can measure the threads with wires if you want to be fairly accurate.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 15, 2020, 12:16:18 AM
I think I'd have done the external threads first for use as a gauge for the internal.  You can measure the threads with wires if you want to be fairly accurate.
First time I have done threads like this, its all a learning experience.  How would the wire-measuring work?
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Art K on January 15, 2020, 04:01:34 AM
I don't remember if I've actually used them, but I do have the wire set. You use 3 wires of a certain size and with two on one side and one on the other mike across them to get a particular thread pitch. I think the Machinist Handbook has a chart with wire sizes & measured dimension for a given thread.
Art
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: kvom on January 15, 2020, 12:22:29 PM
I did it once in class.  Need a rubber band to hold the wires or else 3 hands.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 15, 2020, 02:09:37 PM
Gotcha - for my case with the internal threads done first, I measured the ID and calculated in the depth of cut that I had used, it got me very close to the OD for the caps.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: mklotz on January 15, 2020, 03:40:27 PM
A very nice treatise on the three wire method is here...

https://littlemachineshop.com/images/gallery/instructions/ThreeWireMethod.pdf

If the math scares you, the 3WIRE.ZIP archive on my page will be useful.  It calculates the best wire size and measurement over wires when using the three wire method to check the pitch diameter of a thread.

A piece of styrofoam (e.g. packing material) works well to hold the wires while making measurements.  Lay a cloth under the workpiece to catch dropped wires; they're very hard to find amongst the swarf.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 15, 2020, 03:56:08 PM
Thanks Marv, will give it a look!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 15, 2020, 04:01:38 PM
This morning got the base caps shaped and threaded. The end of the thread was undercut so they would screw down flat to the cylinder end. These caps will have holes in the center for the piston rods and glands, but I will drill those with the caps in place on the cylinders and the cylinders held on the arbor, to ensure they are aligned to the bore as screwed in.
Here are the parts so far, with the base caps in place, and the top caps ready for the next bit of shaping. All four caps need to hace the outside faces recessed to form ribs, which I assume they used to help screw them into place and out again.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6503.JPG)
Very pleased with how the threading worked out, that was one of the new skills I had to learn on this project (thats one of the fun things in this hobby, always new stuff to learn).
 :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Mcgyver on January 15, 2020, 06:43:58 PM
man, you sure squeeze a lot out of that little machine, kudos!  Nice progress on the engine
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 15, 2020, 06:44:55 PM
Looking great Chris!  :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Brian Rupnow on January 15, 2020, 07:43:02 PM
Looking really great Chris. Threading with a lathe is one of those things I CAN do, but it makes me quiver all over. I put all of the appropriate change gears on my lathe and did cut a 3/4" coarse thread that would accept a 3/4" standard nut. Having actually threaded something, I put it up on my shelf of "Look what Brian can do stuff", removed all the change gears, and I've never threaded anything again. Something I didn't know when I bought my second lathe, was that if you buy a gear head lathe, you don't have to mess with change gears. I had looked at a gear-head lathe at the company that sells them and decided that it was too noisy. I am a master of finding things out after the fact, but in this case it didn't hurt me. All of the threading I have to do can be done with taps and dies.----Brian
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 15, 2020, 08:20:00 PM
Looking really great Chris. Threading with a lathe is one of those things I CAN do, but it makes me quiver all over. I put all of the appropriate change gears on my lathe and did cut a 3/4" coarse thread that would accept a 3/4" standard nut. Having actually threaded something, I put it up on my shelf of "Look what Brian can do stuff", removed all the change gears, and I've never threaded anything again. Something I didn't know when I bought my second lathe, was that if you buy a gear head lathe, you don't have to mess with change gears. I had looked at a gear-head lathe at the company that sells them and decided that it was too noisy. I am a master of finding things out after the fact, but in this case it didn't hurt me. All of the threading I have to do can be done with taps and dies.----Brian
This did work, but as you say not something I want to do every day. The way Sherline did the gear holders is not quite secure enough, found that after every pass I had to tap the one lever back into place to keep it from slipping too far out and skipping teeth, which throws everything off. But, unless they make a 26.25x0.9mm tap/die set for a few dollars (doubt they do at all), this was the way to go! Hand turning the spindle gets old quick...
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 15, 2020, 08:25:20 PM
This afternoon got started on the top end caps again - undercut the end of the threads so the cap will fit down all the way, drilled the end shallow for a row of 4-40 screws, and parted them off from the bar. The screws were used to hold the part to a scrap bit of bras bar stock so I could hold it in the 3-jaw without marring the threads. This let me mill out the recess in the top, forming the ridges which are used to install/remove the caps. The screws are in line with the ridge, so they didnt break through.

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6504.JPG)
One down, one to go...
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6505.JPG)

Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Don1966 on January 15, 2020, 09:11:40 PM
Very intuitive Dog and some amazing machining......... :Love:


 :cheers:
Don
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 15, 2020, 10:08:14 PM
Very intuitive Dog and some amazing machining......... :Love:


 :cheers:
Don
Thanks Don, though as you will see in the next post, I did not need to make the little holder for the top caps... Not much time wasted fortunately...
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 15, 2020, 10:16:35 PM
With the two top caps shaped, next moved on to the base caps, which differ in that they have a center boss for the piston rod and gland, plus they have four ribs rather than two. When setting them up, I realized that drilling the holes in the inside for the screws was a waste of time - the rim above the threads gives a place to grip in the chuck without marring the threads.   :facepalm:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6506.JPG)
The layout for these was easy - worked out to 8 turns on the rotary table for the inner edge of the slot, then 10 turns to the start of the next slot. So, cutting these went pretty quickly, started each slot down to depth along the inside, then several passes on each to widen them out to size. So, here are the bottom caps shaped and screwed onto the cylinders:

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6508.JPG)
as well as the top caps:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6509.JPG)
I've got a pair of smooth flat-ended jewelry pliers that fit the slots nicely, makes an easy way to screw them on and off as needed. In final assembly, will add some thread sealant goop for a gas tight fit.
Next up? I am thinking going back to the cylinder blocks, doing a little more filing/sanding, and get started on the holes for the valve sleeves. These sleeves hold the piston valves. Or is it spool valves? Two names for the same thing?  :thinking:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: zeeprogrammer on January 15, 2020, 10:48:53 PM
Two names for the same thing?  :thinking:

Why not? I know of several names that you go by.  :LittleDevil:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 15, 2020, 11:55:14 PM
I think the naming convention is spools in hydraulic valves, piston valves for steam. Also pi$$ed-on valves for the leaky ones I have made before I learned the tricks about PTFE rings on piston valves, and radii at window corners in port openings on sleeves for piston valves.   ::)  :lolb:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 15, 2020, 11:58:33 PM
Two names for the same thing?  :thinking:

Why not? I know of several names that you go by.  :LittleDevil:
Oh, there have been lots of names over the years!  Some could even be mentioned here.   :Jester:
My answer to 'do that, it will build character' is always that I dont need character, I am one!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 16, 2020, 12:05:49 AM
I think the naming convention is spools in hydraulic valves, piston valves for steam. Also pi$$ed-on valves for the leaky ones I have made before I learned the tricks about PTFE rings on piston valves, and radii at window corners in port openings on sleeves for piston valves.   ::) :lolb:
I like the leaky valve name!

On the valves for this engine, the original used steel rings, I was thinking of not using any since o rings and such would tend to get cut by the openings, and they would need to be in pairs to work right with the openings designed for the original. Had not thought about PTFE rings though. Would they work better for going past the openings? They used a row of 'windows' around the circumference, rectangular with rounded corners. I have no experience with that kind of setup, was just going to use a bronze piston (with two sections riding on the sleeve inner wall, thinner above/below/between them to allow steam/air flow). Always an issue to get a decent enough seal while allowing it to move, thats why I like slide valves better for most engines. The sleeve ID will only be around 3/8" or so, the ports are .078" tall as scaled from the original.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Johnmcc69 on January 16, 2020, 02:35:55 AM
 :ThumbsUp:
 Looking good Chris!
 Why did you use the metric (Not that there's anything wrong with
 that... 8) ) threads on the cylinders & caps? Did the size just work out better?

 John
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 16, 2020, 03:18:32 AM
:ThumbsUp:
 Looking good Chris!
 Why did you use the metric (Not that there's anything wrong with
 that... 8) ) threads on the cylinders & caps? Did the size just work out better?

 John
Hi John,


Its a function of the gear set. The sherline thread cutting attachment comes with gears that will do both imperial and metric pitches, but with the riser block in place only the metric combination will reach that high. You can buy additional gears to do inch pitches with the riser, but I didn't want to take the time and expense to get them. As a one off set of parts that only have to match each other, I just picked a combination that would be coarse enough to be strong and fine enough to fit the space. Many choices would have worked.
Normally I use both systems in taps and dies, picking what fits the parts, so no real difference here.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 16, 2020, 01:33:48 PM
"On the valves for this engine, the original used steel rings, I was thinking of not using any since o rings and such would tend to get cut by the openings, and they would need to be in pairs to work right with the openings designed for the original. Had not thought about PTFE rings though. Would they work better for going past the openings? They used a row of 'windows' around the circumference, rectangular with rounded corners. I have no experience with that kind of setup, was just going to use a bronze piston (with two sections riding on the sleeve inner wall, thinner above/below/between them to allow steam/air flow). Always an issue to get a decent enough seal while allowing it to move, thats why I like slide valves better for most engines. The sleeve ID will only be around 3/8" or so, the ports are .078" tall as scaled from the original."

For a 3/8" sleeve ID probably a lapped sleeve and a lapped-to-match solid bronze piston valve would be best option. Rings of any kind on such a small bore would be difficult to do with enough gap to work but not too much clearance, and getting a scarfed / angled split in the ring that didn't catch the port openings. The PTFE rings I mentioned I have experience with were on 1" and 1 1/2" dia piston valves, much bigger than 3/8" dia and easy enough to do - no watchmaking needed!

Are you thinking a steel sleeve or could you do a cast iron one? The self lubing properties of cast iron would make for a very low friction running fit to a lapped bronze valve. Probably be very smooth in operation.

Note to any of Chris' elves reading the above - I said lapping, not lap dancing! and egg nog is NOT a good lapping compound, with or without Navy rum - don't even go there!  :hellno:  :Lol:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 16, 2020, 02:25:33 PM
Thanks CNR, great info. I was thinking of using the 303 for the sleeve with bearing bronze for the valve, had not thought of cast iron. Machining a very thin wall in cast iron, 1.25" long with holes in the side sounds like it might be tricky? Might be safer to use the steel.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 16, 2020, 02:37:52 PM
Hi Chris, if you wanted to make the sleeve in cast iron, just get a small piece of Meehanite or other continuous cast iron bar. The sleeve will be a walk in the part with that stuff. My suggestion - turn it to be say .188" wall per side outside your finished ID, bore, cut the port windows, turn OD to finish size, lap would be my suggested order of ops. Just food for thought, there are are many materials and methods that will work fine.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 16, 2020, 02:40:27 PM
Hi Chris, if you wanted to make the sleeve in cast iron, just get a small piece of Meehanite or other continuous cast iron bar. The sleeve will be a walk in the part with that stuff. My suggestion - turn it to be say .188" wall per side outside your finished ID, bore, cut the port windows, turn OD to finish size, lap would be my suggested order of ops. Just food for thought, there are are many materials and methods that will work fine.
I'll get some and give it a try, thanks! I take it that it has a different grain structure and strength properties?
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 16, 2020, 02:55:49 PM
The Meehanite or similar continuous cast bar has very even grain all across and through the bar, and grain size is consistent and medium size. There are no chilled areas or voids in the iron, in my experience, unlike many cast-to-shape iron parts done by sand casting. I've carved many engine cylinders, covers, steam chests etc from the continuous cast bar with every success. On valve faces a careful sanding with the paper laying on a surface plate , and figure 8 polishing motion, gives a perfect finish for bronze slide valves to seal on. Lapping piston valve bores in this type of CI gives a perfect finish for many types of piston valves. It is dirty to machine though - the graphite in the iron, that gives it the self lube property, gets everywhere while machining. You join the black finger club right away.  :Lol:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 16, 2020, 03:02:00 PM
By the way, there is no secret handshake, and no dues fee payable, in the black finger club. Members worldwide too.   :Lol:

People with itchy ears also get free membership in the black ear-'ole club too.  :shrug:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: zeeprogrammer on January 16, 2020, 03:05:46 PM
By the way, there is no secret handshake, and no dues fee payable, in the black finger club. Members worldwide too.   :Lol:

People with itchy ears also get free membership in the black ear-'ole club too.  :shrug:

 :lolb:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 16, 2020, 03:09:18 PM
By the way, there is no secret handshake, and no dues fee payable, in the black finger club. Members worldwide too.   :Lol:

People with itchy ears also get free membership in the black ear-'ole club too.  :shrug:

 :lolb:
:)   :ROFL:
Here is the shop elves dog before and after machining cast iron...
(http://listerengine.com/coppermine/albums/userpics/10043/Image5.jpg)

 
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 16, 2020, 03:48:43 PM
Looking around for Meehanite - is that basically the same as 'Durabar'? And are they different than 'Gray' cast iron rod? Lots of names, not sure what to look for. I dont see Meehanite at my usual sources here in the US. Suggestions?
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Brian Rupnow on January 16, 2020, 04:23:22 PM
My metal supplier carries round bars of grey cast iron. Beautiful stuff to machine, no voids, no hard spots and no particular grain to it. As CNR says, it's dirty stuff, but a real pleasure to machine. I make all my i.c. cylinders from it.---Brian
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 16, 2020, 04:43:54 PM
My metal supplier carries round bars of grey cast iron. Beautiful stuff to machine, no voids, no hard spots and no particular grain to it. As CNR says, it's dirty stuff, but a real pleasure to machine. I make all my i.c. cylinders from it.---Brian
So the grey cast iron is the continuous cast type CNR is talking about? That I see at a number of suppliers, sounds like it is worth a try for this valve sleeve. The only cast iron I had used before was from sand castings, sounds like quite a different beast.
I see Speedy Metals has some 5/8" gray cast round bar at a great price, says it is 'class 40', my searching shows the higher the class number the higher the strength. Would that be suitable for this?
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Brian Rupnow on January 16, 2020, 05:18:04 PM
The grey cast iron I get doesn't have "class numbers" that I know of. I just tried to call my supplier but he's on lunch. i will call him again after 12:30 and see if he knows anything about "classes" of grey cast iron.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 16, 2020, 05:43:12 PM
I've bought continuous cast iron bar under Durabar trademark too.  Grey iron branded stuff may not be the same as Durabar or Meehanite. One thing to look for when you have the bar in your hand is that continuous cast bar will have visible bands like the bands on a palm tree trunk on the outside, and no parting lines along the bar.  Grey iron stick won't have the rings and may have parting lines along the bar.

Re the elves's dog colour change - must have been a small dog or a really big iron cutting job.  :Lol:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Brian Rupnow on January 16, 2020, 05:54:26 PM
Okay--Just talked to my supplier and the grey cast iron I buy is "class 40". I don't see any particular "banding" on the short pieces I have.---Just a fairly uniform grey color.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 16, 2020, 06:00:21 PM
Great - thanks guys for your time!! A chunk is cheap enough, I'll get some and experiment with it.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 16, 2020, 07:54:43 PM
With the cylinder caps done, next up is to bore the holes for the piston valve sleeves (after will start cutting the passages). Took the holding fixture off the faceplate and clamped it in the mill vise, and drilled a starter hole for the first valve. I left the bottom end caps on to keep the chips out of the threads.

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6510.JPG)
followed by boring it out to 0.392", and .422" at the top to hold the shoulder on the sleeve.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6511.JPG)
Followed by, you guessed it, drilling the second starter hole:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6512.JPG)
Good place to stop for the afternoon...
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Brian Rupnow on January 16, 2020, 08:17:25 PM
There is a complex equation that covers this, but when taken down to a point where the average machinist can understand it says "The  more complex the part being machined is, the tighter your butt cheeks are clenched with every further machining operation." :pinkelephant: :pinkelephant:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 16, 2020, 08:29:41 PM
There is a complex equation that covers this, but when taken down to a point where the average machinist can understand it says "The  more complex the part being machined is, the tighter your butt cheeks are clenched with every further machining operation." :pinkelephant: :pinkelephant:
True!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 16, 2020, 09:41:03 PM
Was that section of math called puckerometry?  :Lol:

These days you might be able to find wearable sensors to read that sort of pressure directly. Not that you'd want to, but for work at the stage you are at I'd suggest the type calibrated up to 10,000 psi.  :lolb:

Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 17, 2020, 06:09:47 PM
This morning got the other valve hole bored like the first, the rest of the operations are a lot more straightforward with less pucker factor!
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6513.JPG)
Started in on the other holes/ports/passages, starting with the top end plug hole. I assume this one is there for maintenance and cleaning out casting cores, it will be plugged for normal operation.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6514.JPG)
Then drilled/tapped the steam inlet hole in the side, then the smaller mounting holes around it. I need to look up what these other 4 were used for, if they held the inlet pipe flange, or were for mounting other case parts, maybe more passage cleanout plugs.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6515.JPG)
Now that those holes are located/drilled/tapped, I can go back and do more carving on the bosses around them to round them better.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6516.JPG)
Also started laying out the slots to be milled in to form the steam passages to/from the cylinders. The pairs of slots go through to the ports in the valve sleeves, and will be connected with holes drilled from the cylinder ends. The exhaust goes out the centered slotsat the ends.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6517.JPG)


Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 17, 2020, 06:12:15 PM
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Vixen on January 17, 2020, 06:19:50 PM
Hi Chris,

On first sight that cylinder block looks just like the core of a Weber DCOE 40 carburetors as fitted to many sports and race cars.

(https://listerengine.com/coppermine/albums/userpics/10013/dcoe_40.png)

Your Stanley735 engine block is a remarkable feat of model engineering, more so when you consider the machinary used to create it.   :ThumbsUp: :ThumbsUp: :ThumbsUp:

Mike
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 17, 2020, 07:32:14 PM
Hi Mike,  I have noticed that it also looks like a small pair of binoculars. If the engine doesn't work, guess it can be repurposed!


 :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 17, 2020, 08:53:16 PM
Hi Chris, I recall also that your shop elves were eyeing the 3D printed cylinder as the potential basis for an elf launcher system.........many purposes for it , it seems.  :atcomputer:  :Lol:

 :cheers: to Mike for reminding me of many days spent in my youth trying to get engines to run properly with Weber and SU carbs. When it was a nice sunny day in summer, not so bad. At -25 deg C in fog or snow here in Ontario Canada, not so much...... wise to have bus tickets or good boots if you had a car with Weber or SU here in that sort of weather!

A lot of makeshift inlet manifolds were made of exhaust tubing, plumbing parts new and used (and more than one musical instrument) to adapt US made Carter or Holley or Rochester carbs off Chevs and Fords, perfectly suitable for very cold weather to very hot,  to cars using Webers and SU's to enable more reliable very cold weather ops.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 17, 2020, 09:08:53 PM
Ah, yes - Rochester Products car parts - used to be a couple of factories here in Rochester, got to take tours before they got shut down, and the buildings eventually burned down.   :(   The floors in some areas were wood block, like butcher block, and were absolutely soaked with oil over the years. Fascinating places to see back then.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 17, 2020, 09:21:10 PM
Colder than a shop gnomes heart out there today, so good time to stay in and work in the shop. Got some more done on filing/sanding/sandblasting the outside of the cylinder block to smooth things out some more, then got started on the cover plate and port slots. Laid out and tap-size drilled the cover plate,
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6522.JPG)
then used that as a drill guide on the cylinder block,
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6523.JPG)
and then drilled the cover plate out to the clearance size for the screws.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6525.JPG)
Next is to drill/mill in the exhaust ports. These slots go through the cover plate and down into the cavities past the ends of where the valve sleeve will be. This connects the ends of the valve bores to collect the steam and run them out the manifold (to be made later). So, with the cover plate bolted down, drilled the slot locations first, through into the valve bores:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6526.JPG)
and used a 1/8" end mill to connect the holes.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6527.JPG)
Removed the cover plate so I could deepen the slots a bit more. These slots will take the exhaust steam after it comes out the ends of the valve sleeve when the valve piston is at the other end.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6528.JPG)
Next will be to mill the four slots in the cylinder block marked in blue in the last picture, which will connect the ports on the valve sleeves to the ends of the cylinders with some angled holes from the cylinders.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 17, 2020, 09:25:32 PM
Took another look at the original plans - those four holes around the steam inlet port were at the ends of passages, so makes sense they would have cleanout plugs to get the casting sand out.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 18, 2020, 12:41:46 AM
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 18, 2020, 01:13:51 AM
:ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
:cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: gbritnell on January 18, 2020, 12:32:41 PM
Chris,
Beautiful metal sculpturing!
gbritnell
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Craig DeShong on January 18, 2020, 01:44:04 PM
Meticulous work as always Chris.  :cheers:

Nice to have a warm place to work in the cold weather.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 18, 2020, 05:26:08 PM
Thanks guys! Nasty storm moving through here today and tomorrow, great time to stay in the shop and play.
This morning got the slots for the steam passages milled in, these go from the valve sleeve ports over to the cylinder ends.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6529.JPG)
To drill the connecting passages up to the cylinder ends, I drew on the desired locations for the ports to use in sighting the angles and locations, then milled a starter hole with a 1/8" end mill:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6530.JPG)
followed by drilling through the rest of the way with a 1/8" drill
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6531.JPG)
That completes the passages successfully  :cartwheel: so time for a couple of family shots of all the parts:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6532.JPG)
cover plate on:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6533.JPG)
other side,

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6534.JPG)
and the bottom, showing the valve bores:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6535.JPG)
So, next step: make up the valve glands, so I can drill the mount holes in the base to match, and mill the bosses around the glands. That will finish up shaping work on the cylinder block so the piston bores can be lapped, and work can start on shaping the surface of the cover plate. The cylinder block is down to about 1.2 pounds, long way from the 5 pound bar it started as!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Kim on January 18, 2020, 05:53:17 PM
Great work, Chris!
Love the beauty shots.  You've cut that chunk of metal down a lot for sure!  It's lost over 75% in weight!
Kim
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: petertha on January 18, 2020, 06:44:56 PM
Beautiful work.

I just wanted to mention that OnLineMetals now carries Durabar
https://www.onlinemetals.com/en/buy/cast-iron-round-bar

They never previously carried any cast iron so this is a good thing. I don't have a lot of experience with Class-40 but it seemed to cut & finish OK on my cylinder liner tester. I bought enough Class-40 to do my radial engine so that's settled, but for future projects I think I want to try Durabar. It was a double win because Speedy is net more expensive to me (in Canada) as their material prices can be a bit higher  than OLM but the (UPS courier only option) transport costs are killer. If you live in this States all this is a moot point, but just pointing out to others who might be reading.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: propforward on January 18, 2020, 06:57:58 PM
That is just spectacular machining - really amazing how you’ve carved that block of material.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 18, 2020, 07:17:14 PM
Beautiful work.

I just wanted to mention that OnLineMetals now carries Durabar
https://www.onlinemetals.com/en/buy/cast-iron-round-bar (https://www.onlinemetals.com/en/buy/cast-iron-round-bar)

They never previously carried any cast iron so this is a good thing. I don't have a lot of experience with Class-40 but it seemed to cut & finish OK on my cylinder liner tester. I bought enough Class-40 to do my radial engine so that's settled, but for future projects I think I want to try Durabar. It was a double win because Speedy is net more expensive to me (in Canada) as their material prices can be a bit higher  than OLM but the (UPS courier only option) transport costs are killer. If you live in this States all this is a moot point, but just pointing out to others who might be reading.
I looked at the Durabar there, choked on the price though. The class-40 from speedy metals was 1/10th the cost, so I am starting with that and will see how it goes. Amazing how the prices vary place to place, and the shipping goes from reasonable to crazy too.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 18, 2020, 07:19:32 PM
Great work, Chris!
Love the beauty shots.  You've cut that chunk of metal down a lot for sure!  It's lost over 75% in weight!
Kim
Thanks Kim, and I am very happy with how the sandblasting changes the look too. Not as rough as I was hopign for, but it takes away those shiny toolmarks very well (with some filing and sanding too), makes it look more like a gray painted finish. A couple times I reached over for the 3D printed plastic one, also gray, grabbed the metal one by mistake, and almost dropped it on my foot!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: petertha on January 18, 2020, 07:46:48 PM
>I looked at the Durabar there, choked on the price though. The class-40 from speedy metals was 1/10th the cost, so I am starting with that and will see how it goes.

Yes, in 1.25" diameter I was looking at, Class-40 Rd Grey cast iron via Speedy is 18.95 USD/ft. Durabar via OLM is 46.11 USD/ft. The transport all-in cost brought the numbers closer but its still expensive stuff. Another thing I noticed Speedy has an excellent selection of rectangular Class-40 for similar $/weight cost metrics whereas Durabar $ is stratospheric, not even worth discussing. Maybe that's where you were getting the 1/10 factor. Sorry for the sidebar diversion.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 18, 2020, 08:20:52 PM
>I looked at the Durabar there, choked on the price though. The class-40 from speedy metals was 1/10th the cost, so I am starting with that and will see how it goes.

Yes, in 1.25" diameter I was looking at, Class-40 Rd Grey cast iron via Speedy is 18.95 USD/ft. Durabar via OLM is 46.11 USD/ft. The transport all-in cost brought the numbers closer but its still expensive stuff. Another thing I noticed Speedy has an excellent selection of rectangular Class-40 for similar $/weight cost metrics whereas Durabar $ is stratospheric, not even worth discussing. Maybe that's where you were getting the 1/10 factor. Sorry for the sidebar diversion.
At online metals the 5/8" durabar was over $70 for a foot. Crazy. Especially since I only need about 3”. The class 40 was $7.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: steamboatmodel on January 18, 2020, 11:32:36 PM
Beautiful work.

I just wanted to mention that OnLineMetals now carries Durabar
https://www.onlinemetals.com/en/buy/cast-iron-round-bar

They never previously carried any cast iron so this is a good thing. I don't have a lot of experience with Class-40 but it seemed to cut & finish OK on my cylinder liner tester. I bought enough Class-40 to do my radial engine so that's settled, but for future projects I think I want to try Durabar. It was a double win because Speedy is net more expensive to me (in Canada) as their material prices can be a bit higher  than OLM but the (UPS courier only option) transport costs are killer. If you live in this States all this is a moot point, but just pointing out to others who might be reading.
UPS (United Pirate Services) Charges brokerage fees on everything they bring north of the border, even on tariff free items. If a company can't ship to me by USPS I don't order from them.
Gerald.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: rspringer on January 19, 2020, 05:31:08 AM
Chris, online metals only sells durabar in 72 inch lengths.  So 70 bucks is not unrealistic.  But shipping would be high especially if you only needed a couple of inches.  The accountant (bean counter) in me. Sorry
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 19, 2020, 01:14:12 PM
Chris, online metals only sells durabar in 72 inch lengths.  So 70 bucks is not unrealistic.  But shipping would be high especially if you only needed a couple of inches.  The accountant (bean counter) in me. Sorry
Ah, I missed that bit, that makes a lot more sense!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 19, 2020, 10:45:43 PM
Someone sent me this picture, next project maybe?  Full scale would be a lot of fun!
(https://i.postimg.cc/XqJS5NP1/Snow-King-Rotary-Snowplow.jpg)

Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 19, 2020, 10:58:22 PM
What could possibly go wrong with the side impellers?  (he said, knowingly)  :Lol:

Fixed neighbours' newer cheap snowblowers and blew snow with my ancient but working one all day Saturday here. About 10" (254 mm official Canadian units). Light in the morning, heavy as lead in the afternoon.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 20, 2020, 12:12:12 AM
What could possibly go wrong with the side impellers?  (he said, knowingly)  :Lol:

Fixed neighbours' newer cheap snowblowers and blew snow with my ancient but working one all day Saturday here. About 10" (254 mm official Canadian units). Light in the morning, heavy as lead in the afternoon.
More fun than chasing someone with a Zamboni....! 


Despite all the dire predictions, things here did not get too bad, only about 4" of crusty snow, did not bother to blow out the driveway, it will be melted in two days anyway, and the AWD car will go over it fine.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: rspringer on January 20, 2020, 12:21:37 AM
That snow plow could even go on the shay.  You could make it interchangeable. 
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 20, 2020, 12:28:48 AM
That snow plow could even go on the shay.  You could make it interchangeable.
It WOULD be a fun attachment....
I assume they had a power take-off from the truck engine?

The guys up in Maine want a real one to plow the driveway into the museum (a mile of dirt road through the woods).
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Flyboy Jim on January 20, 2020, 03:16:42 AM

Despite all the dire predictions, things here did not get too bad, only about 4" of crusty snow, did not bother to blow out the driveway, it will be melted in two days anyway, and the AWD car will go over it fine.

That's amazing. Watching the news tonight, it looked like you were getting hammered and would of needed that snow plow!  :thinking:

Jim
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 20, 2020, 03:44:22 AM

Despite all the dire predictions, things here did not get too bad, only about 4" of crusty snow, did not bother to blow out the driveway, it will be melted in two days anyway, and the AWD car will go over it fine.

That's amazing. Watching the news tonight, it looked like you were getting hammered and would of needed that snow plow!  :thinking:

Jim
With Lake Erie to the west and Lake Ontario to the north, it only takes a slight change in wind or storm track direction to make a huge difference in the snow. Years ago the head of the local National Weather Service office transfered out to Kansas, he came back a year later because he was bored at how easy the forecasts were by comparison! The lake effect here can cause bands of rain or snow in narrow strips, the snowmobiling at the east end of the lake is legendary, some houses put doors on the upper storey. Couple miles away, bare ground.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: tghs on January 20, 2020, 04:02:55 AM
I was stationed up at Alexandria bay for a few years, Watertown was going to hold a winter carnival, it was cancelled do to excessive snow..
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 20, 2020, 07:59:13 PM
Back working on the Stanley today - got a start on the first of the valve glands, turned out out of some 303 stainless. The flange in the center needs to be shaped still, got the outer end shaped, drilled, tapped:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6540.JPG)
Here is the inside, they tapered it to help direct the steam from the center of the valve sleeve out to the exhaust port apparently.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6541.JPG)
Will do the other one to this point, then set them up on the rotary table for shaping the flange and drilling mounting holes.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: zeeprogrammer on January 20, 2020, 11:14:14 PM
Back working on the Stanley today - got a start on the first of the valve glands, turned out out of some 303 stainless.

Slowing down? Surely not!  ;D

I caught one of your elves in my shop today. He (or was it a she?) kept trying to hit the 'add to cart' button.
While safer than hitting the 'go to checkout button' I couldn't take the chance and kicked him/her out into the snow.

I'll hit those buttons in a week or so.  ;D
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 20, 2020, 11:28:44 PM
Back working on the Stanley today - got a start on the first of the valve glands, turned out out of some 303 stainless.

Slowing down? Surely not!  ;D

I caught one of your elves in my shop today. He (or was it a she?) kept trying to hit the 'add to cart' button.
While safer than hitting the 'go to checkout button' I couldn't take the chance and kicked him/her out into the snow.

I'll hit those buttons in a week or so.  ;D
:Lol:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 21, 2020, 09:30:04 PM
A little time in the shop this morning, started shaping down the flanges on the valve glands on the rotary table:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6542.JPG)
Parts so far, still need to round the ends/sides, and drill the mounting screw holes:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6543.JPG)
Interesting how they turned them to one side to get them into a smaller space. These glands will only hold the pressure of the exhaust steam. There will be nuts in the center to hold in the packing.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: propforward on January 21, 2020, 09:34:11 PM
 :ThumbsUp: I just love looking at the stuff you make - totally top shelf.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 21, 2020, 09:36:03 PM
:ThumbsUp: I just love looking at the stuff you make - totally top shelf.
Thanks Stuart, much appreciated!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 21, 2020, 10:08:05 PM
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 21, 2020, 11:04:58 PM
Well, that is interesting. All that back and forth last week about what kind of cast iron bar to order (all very helpful info, thanks very much to all) for use as the valve sleeves on this engine, and I wound up ordering the grade-40 gray cast iron bar from Speedy Metals, since over at Online Metals they only sold the Durabar in 72" lengths and I only need a short bit (wound up getting a 24 inch bar, along with restocking my 303 selection).


 :headscratch:

Well, got the piece of grade-40 from Speedy Metals just now. Down the length of the piece it has the manufacturers stamping saying it is Durabar Grade G2. 


 :noidea:

Um, huh? I have NO problem with that, the Durabar is what I would have gone with intentionally if I had found it in short lengths at a decent price, but I didn't. If I like it I may buy some more bigger pieces to have a stock for future projects.


So, did Speedy goof, or is it common to sell the Durabar branded bar without mentioning thats what it is? Or did I get lucky? Would have thought they would mention it as a selling point.


Anyway, been wanting to try it out on the lathe, recommended by many for pistons/liners/etc. I am going to finish the work on the valve and piston glands and the cover plate first, so that bar can sit there and age a bit. Uh-oh, just realized, I'll have to put the elves on watch for Surus to clomp over and grab it thinking its a casting...   :Lol:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: zeeprogrammer on January 21, 2020, 11:43:29 PM
to have a stock for future projects.

hee hee...it's those 'future projects' everyone is wondering about.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 22, 2020, 12:50:08 AM
to have a stock for future projects.

hee hee...it's those 'future projects' everyone is wondering about.


And its a long list!   :)
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 22, 2020, 05:06:18 PM
This morning drilled the holes in the ends of the flanges for the mounting screws, using the tap drill size at first...
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6544.JPG)
I want to use the flanges as drill guides for the holes in the cylinder block, which means holding the glands in place, centered on the holes. There is a bit of slop on the inside diameter due to the tapered section, so I whipped up these guides from brass bar - sliding fit in the valve holes, and a post that slides onto the gland:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6545.JPG)
With that to hold the parts centered, drilled the screw holes, then drilled the flanges out to clearance size.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6546.JPG)
Here are the part screwed into place for a test fit, all looks good so next will take them up to the sander and round the corners of the flanges.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6547.JPG)

Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 22, 2020, 08:51:36 PM
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 22, 2020, 08:59:06 PM
:ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
Send one of your elves over here with some of that popcorn, you re making me hungry!   :Lol:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 22, 2020, 09:16:07 PM
This afternoon took the valve glands to the belt sander, few light passes and the corners were rounded off. Then, bolted them in place and started taking the bottom of the cylinder block down around them, leaving bosses under the glands. These are shallow, only about 25 thou. Using the trusty holding fixture to mount the cylinder block to the rotary table.

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6548.JPG)
Also attached the cover plate, since the end of that needed to come down to the new level...
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6549.JPG)
Here are the bosses around the valve bores:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6550.JPG)
Next up was to take the outer surface of the cover plate down to form the bosses there that support the exhaust manifold and the four plugs, used to clean the casting cores out of the passages on the original. No casting here, so just for looks.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6551.JPG)
Still need to round off the bosses around the plug holes, will do that by hand with the rotary tool. Then will sandblast the new surfaces to blend them into the cylinder appearance.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6552.JPG)
After that, getting close to the final work on the cylinder block assembly. Need to bore the bottom cylinder caps for the piston rods and make the glands for all the rods, and lap the bores to final smoothness - especially the valve bores, the passage cutting has left some edge burs.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 22, 2020, 10:11:56 PM
On some recent work I used some new-ish endmills on some chewy hot rolled Chinesium faux steel. The burrs were so big I called one of them "Raymond".    :facepalm:  Hope your burrs are smaller than that!   :Lol: :ThumbsUp:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 22, 2020, 10:25:47 PM
On some recent work I used some new-ish endmills on some chewy hot rolled Chinesium faux steel. The burrs were so big I called one of them "Raymond".    :facepalm:  Hope your burrs are smaller than that!   :Lol: :ThumbsUp:
Fortunately too small to name, just enough to interfere with sliding parts. I've had those big ones when the cutter is going dull. Gives enough of a burr to be the engineer on Star Trek.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: zeeprogrammer on January 22, 2020, 10:28:20 PM
to have a stock for future projects.

hee hee...it's those 'future projects' everyone is wondering about.


And its a long list!   :)

At least it's a list of projects. I had a list of projects. It turned out to be a list of wild hairs.
Much harder to pluck than the ones on my forehead, ears, shoulders, etc.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 22, 2020, 10:32:49 PM
On some recent work I used some new-ish endmills on some chewy hot rolled Chinesium faux steel. The burrs were so big I called one of them "Raymond".    :facepalm:  Hope your burrs are smaller than that!   :Lol: :ThumbsUp:
Fortunately too small to name, just enough to interfere with sliding parts. I've had those big ones when the cutter is going dull. Gives enough of a burr to be the engineer on Star Trek.

"Ye canna change the laws of physics Captain."   Aye Mr. Scott....... Newww thaaaaat's a burrrrrrrrr.      :Lol:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 22, 2020, 11:36:06 PM
to have a stock for future projects.

hee hee...it's those 'future projects' everyone is wondering about.


And its a long list!   :)

At least it's a list of projects. I had a list of projects. It turned out to be a list of wild hairs.
Much harder to pluck than the ones on my forehead, ears, shoulders, etc.
Hmmmm, Zee is a Tribble!   :ROFL:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 22, 2020, 11:37:08 PM
On some recent work I used some new-ish endmills on some chewy hot rolled Chinesium faux steel. The burrs were so big I called one of them "Raymond".    :facepalm:  Hope your burrs are smaller than that!   :Lol: :ThumbsUp:
Fortunately too small to name, just enough to interfere with sliding parts. I've had those big ones when the cutter is going dull. Gives enough of a burr to be the engineer on Star Trek.

"Ye canna change the laws of physics Captain."   Aye Mr. Scott....... Newww thaaaaat's a burrrrrrrrr.      :Lol:
Sometimes Bugs Bunny had it right, he just IGNORED the laws of physics ("Of course, I never studied Law")
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 23, 2020, 05:53:20 PM
This morning used the rotary tool to clean up around the corners and curves on the cover plate, and then sandblasted it to blend in with the rest of the cylinder block.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6553.JPG)
Next am going over the shapes of the piston rod glands, and should start them this afternoon...
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 23, 2020, 07:44:32 PM
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 23, 2020, 07:47:25 PM
This afternoon saw the piston rod glands drilled/counterbored for the bushings and gland. There will be a bronze guide tube inside the gland, with an o-ring at the outer end for a seal.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6554.JPG)
Then sized and threaded the outside of the glands for the packing nuts:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6555.JPG)
This completes the shaping on the cylinder block, just need to lap/polish the cylinder/valve bores.   :whoohoo:

Some shots of the parts so far:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6556.JPG)

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6557.JPG)

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6558.JPG)
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Don1966 on January 23, 2020, 10:21:49 PM
Exquisite Work, i just love how this has unfolded with amazement. Did I say ...........I............Like........... :Love:



 :drinking-41:
Don
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Craig DeShong on January 23, 2020, 10:48:31 PM
Could this “casting” possibly get any busier?  Great work Chris.  :popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: zeeprogrammer on January 23, 2020, 11:14:53 PM
I can sort of see the relunctance to add the chassis et.al. Who would want to hide that gem?
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Kim on January 24, 2020, 01:42:01 AM
Wonderful work on that 'casting' Chris! All that experience carving really shines!
Kim
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 24, 2020, 01:50:42 AM
Exquisite Work, i just love how this has unfolded with amazement. Did I say ...........I............Like........... :Love:



 :drinking-41:
Don


Thanks Don, I am having a lot of fun with this one.


Could this “casting” possibly get any busier?  Great work Chris.  :popcorn: :popcorn: :popcorn:
Well, yes, it will! Gland nuts on the rods, intake and exhaust manifolds on the sides...!  The base on these is pretty unusual, a set of four rods with cross plates, and it gets a full Stephenson linkage too. LOTS of stuff to go on this engine.


I can sort of see the relunctance to add the chassis et.al. Who would want to hide that gem?


Yeah, the actual car version has a sheet metal shell around most of it to hold in the oil. Much rather have it open. Have to see if I can find some quarter scale wire wheels...


Wonderful work on that 'casting' Chris! All that experience carving really shines!
Kim
Thank you Kim, had to put guards on it to make sure that Surus didn't bribe my elves to mail it to him!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Flyboy Jim on January 24, 2020, 02:51:31 AM
Chris..............when you get to the "lap/polish the cylinder/valve bores" would you mind throwing in a little detail on how you do it? I'm going to need to do that on my P & W build when I get back to it and I'm still a little (ok a lot  :facepalm2: )  vague on the process.

Thanks, Jim
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 24, 2020, 03:13:33 AM
Chris..............when you get to the "lap/polish the cylinder/valve bores" would you mind throwing in a little detail on how you do it? I'm going to need to do that on my P & W build when I get back to it and I'm still a little (ok a lot  :facepalm2: )  vague on the process.

Thanks, Jim
Absolutely. Lots of ways to do it, I usually do a simple setup with a close fitting blank and diamond paste, will show pictures. Should be the next couple of days.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 24, 2020, 05:27:02 PM
Got to the lapping stage this morning. Now, the boring operation left a pretty good finish, so not much was needed from that. But, cutting the ports and passages left some burs around the openings that needed smoothing back down, and there were some nicks and scrapes from all the machining and clamping with the arbor. So, it was worth doing a bit of lapping on the cylinder and valve bores, could feel the bumps running a fingertip down the bores.

Started with the cylinders - the arbor used to hold them for machining was a ready-made lapping rod, already a nice sliding fit. Also, being brass, it is softer than the steel cylinder walls. When I was tought to sharpen chisels years ago by a master boatbuilder, the method was to start on a diamond lapping plate (the type with permenantly embedded grit), then move to diamond pastes of finer grits on a smooth steel plate. He said to use a softer steel plate, so the grit would embed/be held in the surface, and grind away at the harder chisel surface. The most readily available material was to buy a low-end block plane from the hardware store, cheap, with a nice flat sole plate that was softer steel. Anyway, same theory applies here, the brass will hold the grit for the lapping. The paste I have came in a set of plastic syringes, each with a different grit (usually expressed in microns, I think). With the paste spread on the rod, with a little oil to get it to spread out better, I spun the chuck by hand at first to get the paste spread around and to make sure the bore would not grab and spind it out of my hand. Then, turned on the motor at low speed, hand on switch just in case, and worked the part back and forth, letting the paste do its work. Stopped once in a while to add more paste and a few drops of oil to keep a slurry going. I was not looking to remove a lot of material, just smooth off the burs and any deeper tool marks.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6559.JPG)

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6560.JPG)
Started looking like this:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6561.JPG)
Here it is partway along (tough to get pictures of the difference). No, the threads were not worn away, just the way the light flared on them that made them go away in the photo! The black blob in the lower right of the bore is one of the ports.

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6563.JPG)
Then did the same on the valve bore, which has burs from milling the passages into it. This one does not need to be super smooth since it will not have the valve riding on it, but I need to be able to get the valve sleeve down into it later.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6566.JPG)
After wiping all the surfaces down, swabbing out the passages, and doing it again with some degreaser spray, had the paste all cleaned off. Then, back on making more parts. Started with the plug in the top end cleanout for the valve bores.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6567.JPG)
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6568.JPG)
Next want to make the intake/exhaust manifolds, then will do the gland nuts/sleeves...
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 24, 2020, 05:33:29 PM
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 24, 2020, 07:34:28 PM

And on to the manifolds. The intake is just a simple elbow, made it out of a off-the-shelf barbed tube fitting, trimmed and threaded one side.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6574.JPG)
The exhaust manifold is more complex, connecting the two ports to center pipes. Started with the cross-pipe in the middle, drilled through to take the pipe that connects the ports:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6569.JPG)
The ends of the main pipe go into square blocks on flanges that bolt to the ports. Started with some square bar, drilled holes part way through to match the pipe, off center since the top edge will be blended to the pipe after soldering:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6570.JPG)
then milled the block to thickness before cutting off the two ends:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6571.JPG)
The main pipe was made from a piece of bar stock, drilled through:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6572.JPG)
Here are the parts so far, ready for silver soldering and filing the ends to shape, then the flanges will be added. The cross pipe was drilled/tapped and shaped a bit. After soldering, the hole will be drilled through into the main pipe.

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6573.JPG)

Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 24, 2020, 08:32:32 PM
Good to see some solid gold parts going onto this build Chris!  :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn: The elves must have returned all their empties to the beer store!  :Lol:  :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 24, 2020, 08:41:22 PM
Good to see some solid gold parts going onto this build Chris!  :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn: The elves must have returned all their empties to the beer store!  :Lol: :cheers:
Yeah, but they stole mine!   :Lol:




I've been missing working with brass, such nice stuff to machine. The original Stanley drawing called for brass for the manifold, so here we go!  Just got the four parts silver soldered, they need to cool and take a bath in the pickle before trimming the ends down.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 24, 2020, 10:10:31 PM
Got the silver soldered parts cleaned up and milled the openings in the ends and started cleaning up the outer dimensions on the end blocks - had left them big so I didn't have to worry about things shifting diring soldering. Which they did a bit.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6575.JPG)
Here is the manifold milled to size, and the corners rounded on the sander - lots easier to do all this before attaching the flange plate. It is sitting on the blank for the flanges, have since soldered this on and it is bathing in pickle solution to clean it up. After the soak, will drill the mounting holes and mill out the shape of the two flanges at the ends, removing the center section of the plate.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6577.JPG)
The plate was cut slightly oversize, again to let me adjust the final fit after soldering. That way did not need any temporary pins or screws.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 25, 2020, 12:04:54 AM
And closing out the work on the exhaust manifold for the day, here it is after pickling the solder joint to the mounting plate:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6578.JPG)
Sawed out the bulk of the material at the center of the plate, and trimmed it with a few passes of an end mill, it was ready to clamp in place for drilling. The holes already exist in the cover plate, so that makes a handy drill guide so no measuring/layout needed:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6579.JPG)
Drilled holes, ready for cleanup of the flange edge on the belt sander:

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6580.JPG)
Test fit on the cylinder block (will be mounted with studs and nuts in final assembly):

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6583.JPG)
Very nice days progress! Time for some popcorn with the elves....
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: petertha on January 25, 2020, 12:39:03 AM
Nice work Chris. Can you 'expand'  :lolb: on how the split lap is adjusted? From the picture it looks like the split is only on the one end like the style of laps with an end-tightening screw. But you have a threaded rod. Where is the taper?

I think I'm using the same diamond paste compound. Seems to work well & very reasonably priced on AliExpress/Ebay etc.

Re the lap itself. I know a lot has been written on this topic & I don't want to derail your build. You mention the relatively softer material will embed the abrasive. Brass (C360) has a hardness of about 78 RB.  Common 6061 aluminum is about 60 RB. So from that standpoint, wouldn't it be a better 'embedder' (and less costly)? Bronze for that matter (C544) is 40 RB. For the longest while I thought maybe aluminum had other properties that made it less suitable, weaker maybe or higher thermal expansion...? Then I watched a YouTube video where Robin Renzetti used aluminum for laps on quite hard parts & it worked great. Have you ever tried aluminum or something other than brass yourself?
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 25, 2020, 12:56:50 AM
Nice work Chris. Can you 'expand'  :lolb: on how the split lap is adjusted? From the picture it looks like the split is only on the one end like the style of laps with an end-tightening screw. But you have a threaded rod. Where is the taper?

I think I'm using the same diamond paste compound. Seems to work well & very reasonably priced on AliExpress/Ebay etc.

Re the lap itself. I know a lot has been written on this topic & I don't want to derail your build. You mention the relatively softer material will embed the abrasive. Brass (C360) has a hardness of about 78 RB.  Common 6061 aluminum is about 60 RB. So from that standpoint, wouldn't it be a better 'embedder' (and less costly)? Bronze for that matter (C544) is 40 RB. For the longest while I thought maybe aluminum had other properties that made it less suitable, weaker maybe or higher thermal expansion...? Then I watched a YouTube video where Robin Renzetti used aluminum for laps on quite hard parts & it worked great. Have you ever tried aluminum or something other than brass yourself?


Hi Petertha, 


You may be right about the aluminum vs brass, but as I briefly mentioned I used the brass expanding arbor that I was using on the holding fixture as the lap. I did not use the expanding feature at all in the lapping process, it was already a close fit, and the paste filled the gap and there was enough resistance as it was. I was just smoothing it out, did not remove much diameter from the bore. So, my choice was purely based on already having a piece of brass the right size already there and ready to go, but st ran in a bolt and chucked on that.
I have never tried aluminum, be fun to try both and compare.

 :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Johnmcc69 on January 25, 2020, 01:20:05 AM
 :ThumbsUp:
Great work Chris!

 John
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: MJM460 on January 25, 2020, 02:13:59 AM
Hi Chris, you continue to astound every day as usual.  I make sure that I keep up every day.

That is a great way to make a manifold that actually fits, without requiring really complex jigs.  Thank you for providing all the detail on that.  It looks like a procedure I could actually successfully use.

MJM460

Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 25, 2020, 02:21:07 AM
Thanks guys. MJM, having the separate cover plate really happened to make the drilling a no brainer. I was about to measure it all out when I realized that I could just visually line it up and clamp it down for drilling from the back. Saved a lot of work. The manifold itself was made easier by how Stanley laid it out with the larger cross pipe and the rectangular ends. As long as the silver solder penetrated the joints, it was all good.


 :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Flyboy Jim on January 25, 2020, 02:55:16 AM
Thanks for the info on honing Chris..............very helpful.  :ThumbsUp:

Todays plumbing project turned out great!

I hope the coming storm isn't too serious. Should make for some good shop time.  :)

Jim
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 25, 2020, 03:23:01 AM
Thanks for the info on honing Chris..............very helpful.  :ThumbsUp:

Todays plumbing project turned out great!

I hope the coming storm isn't too serious. Should make for some good shop time.  :)

Jim
All we got coming here is a heavy rain. No problem, am at the high end of the street. We have our next pool run Sunday, sea trials for a new submarine.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 25, 2020, 09:15:21 PM
Got to work on the valve and piston glands this afternoon. Started with the guide bearings in the piston glands, a length of bearing bronze drilled for the rod and turned to fit the inside of the gland. Good way to use up the short lengths of bronze left over from other builds.

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6584.JPG)
Here the bearings are installed in the piston glands, on the far one you can see how the o-ring sits in a recess in the end of the gland, on the near one you can see the bearing below that. The gland nuts will compress the o ring for a good seal.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6585.JPG)
Then made up the valve glands from hex bar stock, these are threaded on the outside to screw into the glands, there is an o-ring at the bottom of those holes.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6586.JPG)
Then turned up the piston gland nuts. These are threaded on the inside, with half the outside turned round.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6587.JPG)
Then went to the mill, where the round sections were held in a 5C collet mounted in the hex holder, with the gland nuts turned so the flats were facing up when the holder was in the vise. Used a center drill to make the holes around the rim for tightening the nuts. Drill, turn the holder one flat, repeat. The front of the holder was flush to the end of the vise to index the holes, so no adjustment of the mill position needed for each hole.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6589.JPG)
And here it all is assembled on the cylinder block, with some lengths of the rods to be used for valves and pistons in place to test the fit, they allowed for good compression on the o-ring when snugged down, so I know the nuts are the right depth.

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6590.JPG)
Just about done with the cylinder block itself, not including the pistons and valves!  Time to go celebrate with the elves, assuming the left me any cookies.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: zeeprogrammer on January 25, 2020, 09:28:32 PM
so the flats were facing up when the holder was in the vise. Used a center drill to make the holes around the rim for tightening the nuts. Drill, turn the holder one flat, repeat.

How do you use the holes to tighten the nuts?
Since it's hex, why not use a wrench/spanner?

I saw a similar thing somewhere else and I got the impression it was because of space limitations (can't get hex tool in). Is that it?
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 25, 2020, 09:33:19 PM
so the flats were facing up when the holder was in the vise. Used a center drill to make the holes around the rim for tightening the nuts. Drill, turn the holder one flat, repeat.

How do you use the holes to tighten the nuts?
Since it's hex, why not use a wrench/spanner?

I saw a similar thing somewhere else and I got the impression it was because of space limitations (can't get hex tool in). Is that it?
I am assuming they used a hinged spanner with a pin on one arm, it would be a pretty big open end wrench to get around the full size one. With all the piping, oil lines, all that in place, maybe its too tight a space to get at?
Okay, some of you Stanley-operators out there, why?
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Flyboy Jim on January 25, 2020, 11:44:42 PM
Wow..............you've been busy today Chris! It's always fun to make parts like that.  :)

Gotta love our 5C collet holders!  :ThumbsUp:

My "Crubey Approved" steel faceplate arrived today. Big improvement over the aluminum Sherline one.  :whoohoo:

Jim
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 25, 2020, 11:54:16 PM
Wow..............you've been busy today Chris! It's always fun to make parts like that.  :)

Gotta love our 5C collet holders!  :ThumbsUp:

My "Crubey Approved" steel faceplate arrived today. Big improvement over the aluminum Sherline one.  :whoohoo:

Jim
All it needs is to be trimmed on the back side - as they come there is a short un-threaded section of the spindle, it needs to be turned back to where the threads start so the Sherline spindle will grab it. They machine easy enough so no problem with that, think I just threaded it on with the plate backwards. After, took a light facing cut on the front side to make sure it was true to the spindle shoulder. I got a couple, since I know they will be drilled/tapped a lot for various parts and hold downs. Think I mentioned these on the Marion thread, they are made for wood turning lathes with the same spindle thread as the Sherline, but are a thicker steel, rather than the thin aluminum ones that Sherline sells, less flex and thicker to take threads. Amazon has them, as does Penn State Industries.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Steamer5 on January 26, 2020, 12:01:55 AM
Hi Zee & Chris,

The engine that Dads working on, to adjust the piston gland, a length of rod in the holes, think pin punch, wiggle into the hole & adjust, repeat until you are happy! The ones he took out the pin punch had been put into the holes at an angle & beaten to move the gland, resulting in odd shaped holes!

Nice work on the glands Chris! Did you consider holes in the valve glands as well?

Cheers Kerrin
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 26, 2020, 12:12:54 AM
Hi Zee & Chris,

The engine that Dads working on, to adjust the piston gland, a length of rod in the holes, think pin punch, wiggle into the hole & adjust, repeat until you are happy! The ones he took out the pin punch had been put into the holes at an angle & beaten to move the gland, resulting in odd shaped holes!

Nice work on the glands Chris! Did you consider holes in the valve glands as well?

Cheers Kerrin
Thanks for confirming what they were for!


 I was about to drill the holes in the valve glands too, which I see in photos was done on the slide valve version of the engines, but when I checked the factory drawing for the piston valve version, they did not have the holes on the valve glands, so I am leaving them out.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Steamer5 on January 26, 2020, 12:19:29 AM
Hi Chris,
 Bet the elves will curse you at its first service, just like the guys would have done in real life!!  :lolb:


Cheers Kerrin
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 26, 2020, 12:21:44 AM
Hi Chris,
 Bet the elves will curse you at its first service, just like the guys would have done in real life!!  :lolb:


Cheers Kerrin
Just like I cursed the designers at Mazda for where they put the bolts on the thermostat!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Steamer5 on January 26, 2020, 12:28:43 AM
My Dad cursed all car markers that didn't lubricate the studs or bolts prior to assembly!

Doesn't seem to have made a difference!

You could always "modify" a ring spanner by cutting a piece out so it has enuff clearance for the valve shaft, that way you can still turn it ok

Cheers Kerrin
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 26, 2020, 12:45:31 AM
For this model I think it will be easy enough to get at it with small open end wrenches, I have small ignition wrenches that work. Not having all the other pipes, tubes, suspension, etc on the real car makes a big difference.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Elam Works on January 26, 2020, 01:20:49 AM
The holes in the gland nuts (and bulkhead glands) are for a locking device that Stanley employed. Wire 'whiskers' of spring steel passed through the near by cylinder block distance pieces and were propped against the appropriate hole in the gland nut. See attached image. Besides the dubious value as an effective locking device, it cleverly reduced the strength of the main engine rods by transfixing the rod with a hole!

It was pretty clear from their designs that at the Stanley factory, they did not yet have an appreciation for the dangers of stress risers.

-Doug
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Steamer5 on January 26, 2020, 01:38:03 AM
Hi Doug,
 Great info!

I'll pass that along to Dad, I cant remember if the engine he's working on has similar holes or not.

Hi Chris,
Small spanner...…………….small elves' got it covered!  :lolb:

Cheers Kerrin
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 26, 2020, 02:07:46 AM
Doug, that is quite interesting! Yet another way to skin the cat...




I also see in that photo the flat belt wrapped around the plate where I think the sheet metal cover of all the moving works started, the ends held with metal clips. Fascinating details, great to see.




Thanks!!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 26, 2020, 02:10:54 AM
Just spotted another tidbit in that photo, what looks to be a later homemade clamp on the valve rod gland nuts, two flat bars with round head slotted screws.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Elam Works on January 26, 2020, 05:57:43 AM
Yes, the bit of flat belt is the gasket for the engine covers - or wrapper - that extended to a similar oval shaped flange on the rear differential. Not all Stanley engines had engine covers; the earliest being open. In 1909 they encased the engine from head to tail in one casing. In 1910 they added the bulkhead so that steam leaking out of the piston glands (they always leak a little) did not contaminate the engine oil. This separated the cylinder from the motion work with an air gap.

The clamp is homemade as you deduced and kept some friction on the gland nuts but allowed them to be more easily, and continuously, taken up as when on a steam car tour. The original 'whisker' for the valve gland can just be seen on the lower engine rod. With water, fuel, and steam; there is always a packing gland somewhere on a Stanley that need s attention.

-Doug
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 26, 2020, 04:27:16 PM
With the glands finished off, time to move on to the moving bits for a while. Turned the piston heads and rods, made the nuts for the ends too. The heads are threaded, and the rod threads end in a shoulder. Should hold quite well with a little loctite in there to keep things from shifting, but that wont be added till after the crosshead end is done - for now the rods are left long.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6592.JPG)
The family shot is getting more crowded!
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6593.JPG)
The valves/sleeves are next up. I think I'll make the sleeves first, then fit the valve pistons to them - easier to remake the pistons if need be, the fit on them needs to be close. I'll start with experimenting with the cast iron bar that I got for the sleeves, work out speeds/feeds for a good finish...
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 26, 2020, 07:48:44 PM
Sounds like you've got a couple of sleeves up your sleeve.... keep us posted. Cyl assy looks great so far.  :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:

What went down at your RC sub meet? Or more importantly what came back up again?  :Lol:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 26, 2020, 07:53:33 PM
Sounds like you've got a couple of sleeves up your sleeve.... keep us posted. Cyl assy looks great so far.  :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:

What went down at your RC sub meet? Or more importantly what came back up again?  :Lol:
Wearing short sleeves, so not a lot up them at the moment!  :Lol:


The pool run is tonight, will post pics after.  Our standard answer to the usual first question of 'How deep will the RC subs go?' - - - you guessed it, "All the way to the bottom!"
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Steamer5 on January 26, 2020, 09:00:16 PM
Hi Chris,
 As a suggestion, & it sounds like teaching grandma to suck eggs, the nuts on your pistons may have been better to have been recessed in the pistons, it reduces the dead volume at the end of the stroke.

The forrest of shafts is looking good! Have you heard the elves sing the lumber jack song yet......


Cheers Kerrin
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 26, 2020, 09:21:32 PM
Hi Chris,
 As a suggestion, & it sounds like teaching grandma to suck eggs, the nuts on your pistons may have been better to have been recessed in the pistons, it reduces the dead volume at the end of the stroke.

The forrest of shafts is looking good! Have you heard the elves sing the lumber jack song yet......


Cheers Kerrin
I agree - but the plans I was given did not recess the nuts, so I did not either - trying to follow them as close as I can.
And no singing from them yet, they seem to be watching the Monty Python marathon thats on this weekend on TV.... and I CAN wait for the fish slapping dance!   :hellno:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 26, 2020, 09:52:31 PM
Got time in to do some test cuts with the Durabar cast iron for the valve sleeves. Cuts/drills/reams quite nicely, thanks for the suggestions!

Did a couple of tests on how to seal around the sleeve, between the ports, and the bore it goes into. Thin section o-rings almost work, but rip too easily on the ports as the cross by (only needs to survive once, but fails that). The sleeves will be a close fit in the blocks, will likely use some rtv or other sealant on that joint.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 27, 2020, 02:36:47 AM
Sounds like you've got a couple of sleeves up your sleeve.... keep us posted. Cyl assy looks great so far.  :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:

What went down at your RC sub meet? Or more importantly what came back up again?  :Lol:
Wearing short sleeves, so not a lot up them at the moment!  :Lol:


The pool run is tonight, will post pics after.  Our standard answer to the usual first question of 'How deep will the RC subs go?' - - - you guessed it, "All the way to the bottom!"
All went good at the pool, pics in the morning...
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 27, 2020, 04:38:02 PM
Okay, as promised, a couple of pics of the new RC submarine that got launched last night at our monthly pool run. This sub is the Hydra sub from the movie Captain America - First Avenger. It is only in the movie briefly, but all of us sub-nuts took one look and went Ooh - gotta build one! I took movie stills and production drawings I found online like this one,
(https://i.postimg.cc/QdMVWCG9/HYDRA-Sub-Production-2.jpg)
and drew it up in Fusion to make the patterns for the hull. There were top and side views posted, so I was able to trace the outlines to get the proportions right. Here is how it turned out (next to a Flying Sub from Voyage To The Bottom Of The Sea that belongs to another club member) :
(https://i.postimg.cc/6p1qVKtH/IMG-1935a.jpg)
And on its maiden voyage:
(https://i.postimg.cc/HLcxBNLT/IMG-1936a.jpg)
This sub is mechanically very different than most of ours - rather than a single motor in the central water tight tube driving props on the stern, there are two motors, each in a watertight can, in the nacelles out the side, driven by the batteries/speed control/radio in the central section. The motors are in close fitting brass tubes hung on a cross spar, sealed with o-rings. Being in contact with the tubes, which are in the water, they are water-cooled so it does not matter that there is not much air space around them.It performed quite well, plenty of speed, the bow planes are radio controlled too for diving/surfacing, and the motors are on a rudder/throttle mixer for differential thrust - it can turn in place, and at speed will slow/stop/reverse one motor for turning depending on the speed.
For this initial test I did not fit moveable rudder surfaces, thinking the motor controls would be enough, which they almost were. Once it gets up to a decent running speed the tail planes are so large that it weathervanes and does not steer very well. So, will cut tabs into the vertical fins and hook them up to another servo.



Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 27, 2020, 05:06:27 PM
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:

Were you tempted to fire forward tubes 1 and 2 into the park ranger boat?  :Lol:

Just kidding, great pics! thanks for sharing them.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 27, 2020, 05:11:35 PM
Doug (and any others with Stanley engine knowledge) - question for you:
Looking ahead to the frame rods that go from the cylinder block down to the rest of the mechanism, through the large plate just below the cylinders. In the plans, it shows a set of tubes around the rods, the tubes having flanges on the bottom so the nuts above the plate can lock the tubes to the plate. And, the rods have nuts at the top of the flange on the cylinder to lock things there.  What I can't find is how the rods are held to the tubes. Here is the picture you (Doug) posted earlier with some arrows added:
(http://listerengine.com/coppermine/albums/userpics/10043/Image15.jpg)
The blue arrow shows the frame rod lower down on the engine. It comes up through the flanged tube (red arrow) which is locked to the plate with a nut on top. The top of the rod is held to the cylinder flange with a nut (green arrow).


Now, seems like either the rod has a flange on it that pulls against the flange on the tube as the nut is tightened, or the tube is part of the rod, or is welded to it? I've looked at a number of pictures, but can't see anything obvious about how its held together. Those frame rods are what ties everything together - the reversing linkages, crank assembly, all that clamps to the rods.

Help?  Many thanks for any information!
Chris
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 27, 2020, 08:47:47 PM
Making the valve sleeves put the elves into mild pucker mode, some small features on them. Started by drilling/reaming the bore for the valve piston, and turned the outside to size. The outside has a small step at one end that will act as a stop for how deep into the block the sleeve goes. It took a lot of checking and testing to get a good fit in the cylinder blocks. I am planning on using some sealant when these go in for real, to eliminate any pressure escaping out the joint between the sleeves and the cylinder block.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6601.JPG)
Then over to the mill - gently held the sleeve in the vise, and laid out the positions of the slots. These are .078" wide, so too small for my normal end mills. I drilled a .078" hole at the center of each slot, then chucked up a carbide dental bur to lengthen it into the slots, first on the right end
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6602.JPG)
then on the left:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6603.JPG)
On the real engine, which had passages opened up all the way around the sleeve, there would have been a series of these slots all the way around, but since I only have passages on one side I only need one set - just need to ensure they are aligned when the sleeve goes in.

Also needed a hole in the middle for the steam inlet, which is on the opposite side from the slots.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6604.JPG)
Parted them off the bar, and they are done!
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6605.JPG)
Look like little elf-flutes, better keep them locked up... (the elves or the sleeves, hmmm...)

Next will be to make the valve pistons, going to leave the sleeves out till they are done to make checking the fit and any lapping needed easier.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 27, 2020, 08:56:10 PM
Lock both sleeves and elves up, and remove all doubt! Probably lower the beer bill too!  :Lol:

Sleeves look great. A high temp silicone sealant is a good option for sleeve to bore fits. On ones I have done, I swabbed both bore and sleeve with a very thin coat of sealant.  :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 27, 2020, 09:02:48 PM
Lock both sleeves and elves up, and remove all doubt! Probably lower the beer bill too!  :Lol:

Sleeves look great. A high temp silicone sealant is a good option for sleeve to bore fits. On ones I have done, I swabbed both bore and sleeve with a very thin coat of sealant.  :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
Swabbing both should help a lot, will still likely get some squeeze-out, but that will be easy to scrape off.   :ThumbsUp:

If need comes up for any reason to remove the sleeve, can it be removed with the sealant there?  Shouldn't need to if I get the valve pistons done first, unless I dont get a good seal somewhere.


Thinking back on the process, it might have been better to bore the holes for the sleeves at a shallow taper, turn the sleeves to match, and lap them in before marking out for the ports (the inner bore would be straight still). That way the fit would be like a glass stopper in a decanter. Too late for this engine, might be a way to go on any future ones that need it.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 27, 2020, 10:12:16 PM
Hi Chris, I've never tried to get a sleeve out after the sealant cured. I expect they'd be anchored like the hubs of h :censored: l though. Heat and nasty chemicals in combination with a screw puller of some sort could probably be made to shift them, but......

Thinking about failure modes though, I don't think it's very likely you would ever have to get them out. You have only two exit ports and one inlet hole in your sleeve design, so your sleeve is already more robust than many multi-port sleeves I have seen that have weak small sections between the windows. If the sleeve wears sometime in future, you could ream it next size bigger and make new piston valves. Since you are slip-fitting it with sealant and not pressing it in, you are keeping forces on the sleeve small, which reduces risk of breakage on assembly. All these things suggest to me that need for removal is not too likely. As a last resort you could bore them out if they were stuck beyond persuasion and you had to get them out. (or use a stick of dynamite )   Sorry forget the elves read the posts..... :Lol:

Re shape of sleeve cylinder vs conical, with the intention of easier removal - if you were fitting it dry it may make a difference for removal. Since you plan to use sealant I think either way it will be stuck well in the bores once cured.

One thing that might be a good idea in order to be sure of correct sleeve rotation during assy,  to align ports with passages would be to drill some orientation holes / scribe some marks on the visible sleeve end face that line up with the centres of the steam exit slot ports. The marks could be aligned by a straightedge across from each other and maybe a couple of marks or a centreline on the cylinder block. This would give a good chance of getting the sleeve lined up with the cylinder ports.  That's enough  :atcomputer: for now.  :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 27, 2020, 11:50:09 PM
Hi Chris, I've never tried to get a sleeve out after the sealant cured. I expect they'd be anchored like the hubs of h :censored: l though. Heat and nasty chemicals in combination with a screw puller of some sort could probably be made to shift them, but......

Thinking about failure modes though, I don't think it's very likely you would ever have to get them out. You have only two exit ports and one inlet hole in your sleeve design, so your sleeve is already more robust than many multi-port sleeves I have seen that have weak small sections between the windows. If the sleeve wears sometime in future, you could ream it next size bigger and make new piston valves. Since you are slip-fitting it with sealant and not pressing it in, you are keeping forces on the sleeve small, which reduces risk of breakage on assembly. All these things suggest to me that need for removal is not too likely. As a last resort you could bore them out if they were stuck beyond persuasion and you had to get them out. (or use a stick of dynamite )   Sorry forget the elves read the posts..... :Lol:

Re shape of sleeve cylinder vs conical, with the intention of easier removal - if you were fitting it dry it may make a difference for removal. Since you plan to use sealant I think either way it will be stuck well in the bores once cured.

One thing that might be a good idea in order to be sure of correct sleeve rotation during assy,  to align ports with passages would be to drill some orientation holes / scribe some marks on the visible sleeve end face that line up with the centres of the steam exit slot ports. The marks could be aligned by a straightedge across from each other and maybe a couple of marks or a centreline on the cylinder block. This would give a good chance of getting the sleeve lined up with the cylinder ports.  That's enough  :atcomputer: for now.  :cheers:
Thanks much! Always nervous when breaking new (for me) ground, good to get second opinions.   :cheers: :cheers:
The orientation should be easy to get right, since with the cover plate off I'lll be able to see the openings - will likely make some pen lines on the top of the flange so I can watch the orientation as it slides in. I think the harder thing will be to get the pistons to be a good fit in the sleeves, I remember having to make a couple sets on the MEM Corliss valves before they would be a good fit and not blow air around them. Slow but sure, and measure once, cut till it fits. No, wait, thats not right...   :Lol:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Flyboy Jim on January 28, 2020, 02:47:09 AM
Slow but sure, and measure once, cut till it fits. No, wait, thats not right...   :Lol:

There's lots of truth to that Chris. I do it a lot!  :thinking:

Looks like a successful Sub run.  :ThumbsUp:

Jim
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 28, 2020, 02:53:29 AM
Slow but sure, and measure once, cut till it fits. No, wait, thats not right...   :Lol:

There's lots of truth to that Chris. I do it a lot!  :thinking:

Looks like a successful Sub run.  :ThumbsUp:

Jim
We had fun at the pool, and the new sub worked quite well for first time in the water (not counting the ballast sessions in the tub). I got the rudder tabs cut and recoated, rudder post and bearing in tonight. Just need to drill the tabs for the post, add a control arm, and add a servo to the WTC. No problem getting it ready for the next pool run.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Ye-Ole Steam Dude on January 28, 2020, 09:47:53 AM
Hello Chris,

Engine is looking great  :ThumbsUp:

The sub looks beautiful and like a Batmobile, uh, Bat-mo-sub :shrug:

Have a great day,
Thomas
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Elam Works on January 28, 2020, 02:26:23 PM
Chris,

The distance sleeves between the bulkhead and cylinder block are brazed to the main frame rods. In the attached photo (one I found on the internet) you can see some 1/4 inch holes in the sleeve to help introduce the spelter midway along the sleeve.

-Doug
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 28, 2020, 02:32:12 PM
Chris,

The distance sleeves between the bulkhead and cylinder block are brazed to the main frame rods. In the attached photo (one I found on the internet) you can see some 1/4 inch holes in the sleeve to help introduce the spelter midway along the sleeve.

-Doug
Perfect, thanks again!! That will work great for the model too. Looks like the other frame members farther down were brazed as well.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 28, 2020, 02:58:45 PM
Wow that's great info on the Stanley engine frame construction. Interesting!  :cheers:

Re your sleeves Chris - if you use the same techniques on the fitting of the piston valves and sleeves in the Stanley as you did on your Corliss valves you will have no trouble. Slow and steady lapping does it. Several sizes of lap and grit size may be needed , used progressively to tighter fit / higher polish , for a leak free fit.

Don't use my usual "I've bored that three times and it's still too loose" technique!  :hellno:    :Lol:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Elam Works on January 28, 2020, 07:06:18 PM
Quote
Looks like the other frame members farther down were brazed as well.

Correct. The sleeves and the cross head supports form the minimum divisible component of the upper and lower frame.

-Doug
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 28, 2020, 07:57:06 PM
Wow that's great info on the Stanley engine frame construction. Interesting!  :cheers:

Re your sleeves Chris - if you use the same techniques on the fitting of the piston valves and sleeves in the Stanley as you did on your Corliss valves you will have no trouble. Slow and steady lapping does it. Several sizes of lap and grit size may be needed , used progressively to tighter fit / higher polish , for a leak free fit.

Don't use my usual "I've bored that three times and it's still too loose" technique!  :hellno:    :Lol:
On the Corliss, I did use the 'well, thats way too loose now, make another one' techniques!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 28, 2020, 07:57:43 PM
Quote
Looks like the other frame members farther down were brazed as well.

Correct. The sleeves and the cross head supports form the minimum divisible component of the upper and lower frame.

-Doug
Great - that helps a lot!   :cheers: :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 29, 2020, 12:14:21 AM
Going to be working on the rudder mods on the sub for the next few days, so no updates on the Stanley till thats done - need the lathe and mill for the new thru hull fittings, rather get it done in one go.




So, till then go over and watch Zee build a mini bowling alley!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: zeeprogrammer on January 29, 2020, 12:36:41 AM
and watch Zee build a mini bowling alley!

Ain't happening. But I have thought about it. Pin and ball elevators are not too bad. Neither is the sweep. But the pin setting table is something else.  :ShakeHead:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 29, 2020, 08:50:59 PM
Something that has been in the works for quite a while that finally has made it up to one of the more forward of the back burners  :thinking:   is an RC version of a modern type excavator. Been noodling around with ways to make the hydraulic cylinders with electric gearmotors rather than true hydraulics (which are available, quite pricy, and very messy if something lets go), and finally came up with a working version. I had seen them running at Cabin Fever, and a few years ago when I had my Lombard Hauler there one of the group running them, Mike, now a member here as well, took my hauler over to the dirt pile on the back of his RC truck/trailer (video and photos over on the Lombard thread).Since then, having caught the bug, been wanting to make something like them. Now that I have a working prototype of the cylinder, that build will go in parallel with the Stanley build. Rather than post duplicate threads, or clog up this thread too much, I will be posting that build over on the RC Truck and Construction forum, with major milestones mentioned here from time to time. Here is a link to the thread over there. They have lots of great stuff there, well worth the look around.

https://rctruckandconstruction.com/showthread.php?t=13632

Having just finished up the rudder mods to my Hydra Sub, as mentioned the other day, back to the Stanley build!

 :cheers: Chris
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Craig DeShong on January 29, 2020, 10:12:33 PM
Slow but sure, and measure once, cut till it fits. No, wait, thats not right...   :Lol:

There's lots of truth to that Chris. I do it a lot!  :thinking:

Looks like a successful Sub run.  :ThumbsUp:

Jim
We had fun at the pool, and the new sub worked quite well for first time in the water (not counting the ballast sessions in the tub). I got the rudder tabs cut and recoated, rudder post and bearing in tonight. Just need to drill the tabs for the post, add a control arm, and add a servo to the WTC. No problem getting it ready for the next pool run.

I am absolutely flabbergasted  :noidea:  you are making fantastic progress on the Stanley AND working on a sub too?  :facepalm: 

Do you ever sleep sy night?  have you cloned yourself?
How can you possibly get all this work done? :shrug:

And it's admirable  :ThumbsUp:  I am amazed
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 30, 2020, 12:03:44 AM
Slow but sure, and measure once, cut till it fits. No, wait, thats not right...   :Lol:

There's lots of truth to that Chris. I do it a lot!  :thinking:

Looks like a successful Sub run.  :ThumbsUp:

Jim
We had fun at the pool, and the new sub worked quite well for first time in the water (not counting the ballast sessions in the tub). I got the rudder tabs cut and recoated, rudder post and bearing in tonight. Just need to drill the tabs for the post, add a control arm, and add a servo to the WTC. No problem getting it ready for the next pool run.

I am absolutely flabbergasted  :noidea:  you are making fantastic progress on the Stanley AND working on a sub too?  :facepalm: 

Do you ever sleep sy night?  have you cloned yourself?
How can you possibly get all this work done? :shrug:

And it's admirable  :ThumbsUp:  I am amazed
Sorry to flabber your gast. Or gast your flabber? Not sure which way is which....   :ROFL:

The sub build started in earnest six months ago, been in the experiment and design phase for about a year, so it was not as quick as it may have looked here. The hull was part molded in fiberglass with wood masters and silicon moulds, part done with very thin ply bent over forms - that part went very quickly, been doing woodwork like that since I was a kid.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 30, 2020, 12:12:51 AM
Back to work on the Stanley engine this evening, time to make the valve pistons/spools. Started with some bronze rod, and turned the outside down to size before cutting in the recesses. Turned the lathe up quite high and used a slow feed, gave a very smooth finish as it was. Drilled for the valve rod - a size smaller than the rod, so I can turn a shoulder on the rod and put a nut on the end to hold it in place. On the original, looks like they brazed on a ring instead of turning in the shoulder, but same end result.

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6611.JPG)
I wanted to lap it before parting off, and realized that I needed to take the bar back a bit farther to let the sleeve go farther on.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6612.JPG)
Used some Timesavers lapping powder, very fine grade, mixed with a couple drops of oil, and lapped the piston to the sleeve. Started with hand turning till it worked out the stiff spots, then turned the lathe on low and ran it a little more. Wiped off the piston, and ran a twisted kleenex down the sleeve to clean it out. One thing I like about that stuff is that any remaining grit will break down, where remaining diamond grit will keep grinding longer. Here is the first one done:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6613.JPG)
Nice smooth fit in the bore, and it passes the blow test, so I am hoping that will do the trick. It will have some grease/oil on it in use. Will find out how good a seal it makes the first time it gets some pressure. So, went ahead and made the second one too.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6614.JPG)
Next will make the valve rods. Aside from gaskets and installing the sleeves, I think that will be the final parts on the cylinder assembly! 
 :cartwheel:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 30, 2020, 12:16:57 AM
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:

Did you forget the hypocycloid thrombolator coupling nuts though?  :Lol:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 30, 2020, 12:42:34 AM
:ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:

Did you forget the hypocycloid thrombolator coupling nuts though?  :Lol:
Those are only in the one with the Fetzner valve...   :noidea:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Flyboy Jim on January 30, 2020, 01:01:01 AM
Something that has been in the works for quite a while that finally has made it up to one of the more forward of the back burners  :thinking:   is an RC version of a modern type excavator. Been noodling around with ways to make the hydraulic cylinders with electric gearmotors rather than true hydraulics (which are available, quite pricy, and very messy if something lets go), and finally came up with a working version. I had seen them running at Cabin Fever, and a few years ago when I had my Lombard Hauler there one of the group running them, Mike, now a member here as well, took my hauler over to the dirt pile on the back of his RC truck/trailer (video and photos over on the Lombard thread).Since then, having caught the bug, been wanting to make something like them. Now that I have a working prototype of the cylinder, that build will go in parallel with the Stanley build. Rather than post duplicate threads, or clog up this thread too much, I will be posting that build over on the RC Truck and Construction forum, with major milestones mentioned here from time to time. Here is a link to the thread over there. They have lots of great stuff there, well worth the look around.

https://rctruckandconstruction.com/showthread.php?t=13632

Having just finished up the rudder mods to my Hydra Sub, as mentioned the other day, back to the Stanley build!

 :cheers: Chris

I just went over and checked the start of your excavator build Chris. Should be really interesting.  :ThumbsUp:

Jim
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: steam guy willy on January 30, 2020, 02:21:46 AM
Hi Chris , is that you surface plate ???  :Lol: :lolb: :mischief:      looking good and will you be running at scale pressure of 600 psi ?? :)

Willy
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 30, 2020, 02:46:23 AM
Hi Chris , is that you surface plate ???  :Lol: :lolb: :mischief:      looking good and will you be running at scale pressure of 600 psi ?? :)

Willy
Surface plate?  You mean in the last picture? Thats the cover plate for over the steam passages, with the exhaust manifold bosses.




No way on running the pressures they did, I'll scale it back to 1:10th scale of 60psi!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Flyboy Jim on January 30, 2020, 02:55:16 AM
Hi Chris , is that you surface plate ???  :Lol: :lolb: :mischief:      looking good and will you be running at scale pressure of 600 psi ?? :)

Willy
Surface plate?  You mean in the last picture? Thats the cover plate for over the steam passages, with the exhaust manifold bosses.




No way on running the pressures they did, I'll scale it back to 1:10th scale of 60psi!

I think he's referring to the black material the parts are sitting on.  :) Looks like a surface plate magnified about 10,000 times!  :lolb: And really really small parts.  ;)

Jim
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 30, 2020, 03:02:41 AM
Hi Chris , is that you surface plate ???  :Lol: :lolb: :mischief:      looking good and will you be running at scale pressure of 600 psi ?? :)

Willy
Surface plate?  You mean in the last picture? Thats the cover plate for over the steam passages, with the exhaust manifold bosses.




No way on running the pressures they did, I'll scale it back to 1:10th scale of 60psi!

I think he's referring to the black material the parts are sitting on.  :) Looks like a surface plate magnified about 10,000 times!  :lolb: And really really small parts.  ;)

Jim


Oh!   :slap:     




I'd love to say that I had been miniaturized and teleported to George Britnells shop, but sadly thats that the chunk of rubber floor matting that I keep on top of my workbench for assembling parts on.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: zeeprogrammer on January 30, 2020, 03:42:31 AM
 :lolb: :lolb:

Good one.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: steam guy willy on January 30, 2020, 04:30:39 AM
Hi Chris,  sorry that is my strange sense of humour !! it does get me into trouble occasionally  :embarassed: :mischief:

Willy
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 30, 2020, 01:55:35 PM
Hi Chris,  sorry that is my strange sense of humour !! it does get me into trouble occasionally  :embarassed: :mischief:

Willy
I'm just so used to having that mat there that I don't even notice it anymore!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 30, 2020, 04:11:19 PM
Finishing off the cylinder block assembly today. cut the shoulder and threads on the valve rods (didn't show up well in the photo, but there are 2-56 threads on the end of the rod, and a shoulder up near the chuck).
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6617.JPG)
So, time for a family shot - here are all the parts ready for assembly:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6619.JPG)
Went and did something else, and when I uploaded the pictures to the computer found this shot in there - guess the elves have felt left out of the posts lately:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6620.JPG)
I got the valve sleeves all coated with some silicone sealant/gasket goop, and swabbed the bores in the block too, then slid them into place, careful to get the ports lined up with the passages. Took a while with some tissues to clean up the squeezeout at the ends and the ports, but looks like it will give a good seal. Letting that set up before assembling again, will take another picture with it all together.
So, next stage working down the engine will be the frame rods and the parts that hang off them. Here again is the drawing of the engine - there are four large rods connecting the cylinder to the middle plate and the cross frames down lower, they are next:
(https://i.postimg.cc/bYgfd4rn/Stanley-Engine-Assembly.jpg)
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Don1966 on January 30, 2020, 04:51:35 PM
Awesome results Dog!......... :Love:




 :drinking-41:
Don
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 30, 2020, 06:45:03 PM
Bucket Bob's got that look in his eye again, like "where did Chris leave the fastener bucket, so we can mis-assemble this thing, and cross-thread some studs?" Expect the unexpected!  :Lol: :mischief:

Cylinder parts look great!  :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:

Question for the Stanley experts: on the connecting rod construction - is there some built in keying mechanism for where the rod joins the U shaped sections which extend to the crossheads? There will be a large whipping force at that joint during high speed running. The rod design would be better with no joint there, maybe as a forging or a hollow steel casting. Just my $0.02 worth. They did build a lot of cars, maybe this joint did not give trouble in real life.

In the model I would recommend using good solid cut steel for the joints, not brass or aluminum, with the longest key possible between them. Tongue and groove joints each side the long way on the rods could give some good stiffness against the whipping forces. Would be fairly easy access for machining to make grooves on the insides of the J shaped rod parts and tongues each side of the rods to the cranks. The only interruption would be a screw hole through the centre of each tongue and groove joint. Just food for thought.  :atcomputer:  :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 30, 2020, 07:04:34 PM
CNR - The plans I have do not show any keyway at the base of the U connection, just the through-pins/nuts at the base and top of the U. I found a photo of one disassembled partly, and does not look like a keyway there either.


Not sure I understand the concern - the pin at the top of the U would keep the short arm from being able to twist against the long one, wouldn't it?
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 30, 2020, 08:40:21 PM
After letting the sealant set up, assembled the parts, here is current family shot:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6622.JPG)
Spent some time making up the drawings for the frame rods and middle plate, that will be the next set of parts.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Kim on January 30, 2020, 08:54:00 PM
The family is growing!   :ThumbsUp:

Enjoying your build, Chris, keep it up!  :popcorn: :popcorn:
Kim
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 30, 2020, 09:13:06 PM
Hi Chris, I don't have any data on what the joint looks like, from your CAD pic it just looked like a plain bolted joint. That's why I was concerned. If it's pinned and bolted I'm not too concerned at all, if just bolted I would be concerned about the joint hinge-ing at the bolt. Mid span, a big lump of metal at a bolted joint will have a lot of inertia as the rod swings at high-ish speed. High forces there as a result.

I guess my IC engine experience with cars trucks and bikes is making my spidey sense tingle. Rods in those engines need to be light in the middle but very stiff, and have as few stress risers as possible. Otherwise the rod snaps and takes the express route out the side of the crankcase!  :facepalm: :facepalm2:

Likely the Stanley engines will run at much lower rpm than IC engines living at 5000 - 7000 rpm in racing, so it may not be as much of an issue, but I still prefer a light at mid-span but very strong con-rod in any engine. My opinion only, Just food for thought.  :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 30, 2020, 09:32:31 PM
Hi Chris, I don't have any data on what the joint looks like, from your CAD pic it just looked like a plain bolted joint. That's why I was concerned. If it's pinned and bolted I'm not too concerned at all, if just bolted I would be concerned about the joint hinge-ing at the bolt. Mid span, a big lump of metal at a bolted joint will have a lot of inertia as the rod swings at high-ish speed. High forces there as a result.

I guess my IC engine experience with cars trucks and bikes is making my spidey sense tingle. Rods in those engines need to be light in the middle but very stiff, and have as few stress risers as possible. Otherwise the rod snaps and takes the express route out the side of the crankcase!  :facepalm: :facepalm2:

Likely the Stanley engines will run at much lower rpm than IC engines living at 5000 - 7000 rpm in racing, so it may not be as much of an issue, but I still prefer a light at mid-span but very strong con-rod in any engine. My opinion only, Just food for thought.  :cheers:
Hope this helps:
(https://i.postimg.cc/Nj0G4MNm/Image18.jpg)
The bolted on arm is supported only at the ends, the joint on the right is the base of the U - appears to be just a flat surface, in the pics I've found there is no key or splines there. I think they did it this way to allow the joint to be taken apart when needed without dismantling too much of the rest of the engine. The base of the piston rod, on the left in the picture, is prevented from twisting by the guide rails, shown in gold color - that is probably a key thing for keeping it all from twisting and whipping. Also, these engines did not rev anywhere as high as a IC car engine, and was connected to the axle through a single gear set. From what I've read, cruising at 30mph the engine is only turning at a little over 400 rpm - that is probably how they got away with this setup.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 30, 2020, 09:56:00 PM
Thanks for the enlarged pic Chris, it really helps. I now see only one side of the rod is remove-able , I had thought both sides of the U were, around the crosshead. Having the rod go all the way from crank to crosshead one side / one piece will eliminate much of the concern I had. Also the low max rpm you mentioned will  reduce the forces greatly. Would still recommend steel for the rod parts rather than brass or aluminum, just to be on the safe-ish side.

Now resuming my chair warming duty (gotta do what one is good at).  :Lol:  Thanks again for the details and explanation.  :cartwheel:   :ThumbsUp: :ThumbsUp: :ThumbsUp::popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 30, 2020, 09:58:21 PM
Thanks CNR, i agree that if both sides were bolted on it would be pretty iffy. Given the sizes, making that part from steel makes a lot of sense.   :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: tghs on January 30, 2020, 10:21:00 PM
it looks like the crossheads are kept captive in 2 planes by the guide rails.. plus they also look twice as long compared to other engines,, most likely to reduce "rocking" in the guides.. great build, always watching, learning many things!!!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 31, 2020, 01:17:25 AM
it looks like the crossheads are kept captive in 2 planes by the guide rails.. plus they also look twice as long compared to other engines,, most likely to reduce "rocking" in the guides.. great build, always watching, learning many things!!!
Thats something they did different, maybe for this reason. On other engines I have done, the radius on the crosshead was centered on the shaft. On this one, the radius is very small so the crosshead itself is locked in straight, not depending on the conrod.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Elam Works on January 31, 2020, 04:27:23 PM
Quote
it looks like the crossheads are kept captive in 2 planes by the guide rails.. plus they also look twice as long compared to other engines,, most likely to reduce "rocking" in the guides.

The Stanley crosshead evolved over the years. See post:  here. (https://www.modelenginemaker.com/index.php/topic,9311.msg207297.html#msg207297) The length of the crosshead and guide was simply because they were using the same crosshead/piston rod forging as the last of the rolling element crossheads, and the guide rails that went with it. In 1915 they went to a plain bearing cross head which they machined the existing forging in alternating ways. First with a convex surface on the guides, and then a convex and experimenting with steel and bronze guide rails. This lasted until they changed to trunk type guides in 1925.

Most plain bearing crossheads constrain in two planar degrees of freedom and three degrees of rotational freedom. The previous rolling element (a single roller above and below the crosshead) only constrained two planar degrees of freedom and one degree of rotational freedom. Prior to that, they used a bearing ball rather than a roller. The ball tolerated the flexing of the engine frame well (did not excessively constrain the crosshead), and also had the benefit of needing minimal lubrication that the early, pre-oil bath engines endured. It seems they went to the roller to increase the load capacity, but there were problems. The roller was less tolerant of the twisting and misalignment and all the pressure would be thrown one end or the other of the roller causing it to wear into a barrel shape or fracture. Also it tended to crab in the guide and skid a lot. To overcome this they went to the plain bearing guide, which seems to worked well enough with the oil bath engines. But they cannot be set as tight as one would expect on a stationary engine. You have to allow for misalignment as the engine flexes. If you assume the engine frame has a rigidity slightly better than wet pasta you are managing your expectations well!

-Doug
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 31, 2020, 06:17:24 PM
Thanks again Doug!!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 31, 2020, 10:28:30 PM
This afternoon got started on the frame rail assemblies - cut the stock for the four rails and the spacer tubes between the cylinder block and the middle plate (seen it refered to as a diaphram plate) that seperated the cylinder block from the oil-bathed reverse gear and crankshaft assemblies. The spacer tubes have a threaded section and a flange at the base, where they will connect to the plate.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6624.JPG)
They were turned/drilled/threaded from some 303 stainless rod. They will slip over and be soldered to the rails, which will get threaded at the upper ends (not done that yet).
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6626.JPG)
Here are the four spacer tubes:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6627.JPG)
Next will thread the frame rods ends. The top gets threaded for a short distance for nuts to hold the cylinder block in place. The bottom ends of the rods apparently were threaded for a fair distance, to hold the crankshaft bearing blocks, and I believe the mounts to the axle.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 31, 2020, 10:39:30 PM
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on January 31, 2020, 10:52:39 PM
You know, those threaded sleeves look a lot like a small version of the sleeves of veterinary trochars as used to treat bloat in cattle.  If genetics ever results in mini cattle you could make a fortune!   :insane:  (but don't sharpen the ends of your sleeves just yet!)   :Lol:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on January 31, 2020, 11:34:34 PM
You know, those threaded sleeves look a lot like a small version of the sleeves of veterinary trochars as used to treat bloat in cattle.  If genetics ever results in mini cattle you could make a fortune!   :insane:  (but don't sharpen the ends of your sleeves just yet!)   :Lol:
Can't you iust train them to burp? Already good at the other direction...   :o
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on February 01, 2020, 04:04:04 AM
Well to be honest I never did try and teach a cow to burp. I'll have to ruminate on that a while........   :Lol:  :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Elam Works on February 01, 2020, 04:04:48 AM
Quote
The bottom ends of the rods apparently were threaded for a fair distance, to hold the crankshaft bearing blocks, and I believe the mounts to the axle.

Yup. Right out through the back end of the rear axle. The attached image is of a 1913-14 10hp. The cover is an aluminum casting and clamps over a spigot on the axle tube. The bearings and the loads are all in the axle tubes. The oval engine casing can be seen to good effect.

-Doug
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 01, 2020, 02:13:03 PM
Ah, that picture says it perfectly, thanks Doug!!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 01, 2020, 08:26:04 PM
This afternoon was about to thread the ends of the frame rods, and realized that I have a gap in my collection of taps/dies. Just have to go tool shopping....  :'(      ;)

In the meantime, will get the 2D plans prepped for the next set of parts, and do some work on the excavator model - the cylinders are done, need to lay out and cut the aluminum plate for the sides of the booms.  ^-^ Terrible having more than one project active....
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 02, 2020, 02:49:18 PM
While waiting to get the taps/dies needed for the frame rods, moving on to the crossmembers. Got the stock for the cross bars cut from bar, ready for shaping. Same for the middle plate - only stock I have on hand big enough is some stress relieved brass, will carve it from that then nickle plate it to make it blend in with the steel parts.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6630.JPG)

Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 04, 2020, 09:43:36 PM
After some time studying the plans, worked out the sequence of cuts for the four crossmembers that hold the valve/piston bits off of the frame rods.  The two lower ones are the same, the two upper ones differ from each other, but all four are the same at the outer ends and have the same holes for the frame rods. So, I want to gange up the cuts as much as possible in those areas to get them all to match. All four blanks were trimmed to length, then started the shaping. Whenever I needed to move the parts in the vise, I clamped on the end with a parallel clamp so they would all stay in the alignment to each other (shown in the last photo below). 

First cut was across each end, a shallow notch on the bottom:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6634.JPG)
Then turned the parts over and made the notches on the top side of each end:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6636.JPG)
That completed the common shapes at the ends on all four parts, next is to drill the holes for the frame rods, so the parts were turned 90 in the vise, holding them with the parallel clamps. Note that one of the parts is taller than the others, that one will have the control rod for moving the reversing gear. Since it is taller, it had to stay on top of the vise, but that worked out to keep the set level and above the bottom of the vise so I can drill through. The clamps will have to stay on for the drilling (to be done next time, thats enough for one day).
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6637.JPG)
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on February 04, 2020, 10:10:24 PM
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 05, 2020, 03:21:31 PM
Picking up where I left off yesterday, drilled the frame rod holes down through all four parts in one go....
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6638.JPG)
Then used a piece of the frame rod stock through those holes to index from, and drilled the end holes which will hold the crosshead guides. All are in the same spot, so once the position was measured to the table was locked down and all eight holes were drilled.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6639.JPG)
The parts so far, with the rest of their profiles drawn on for reference so I dont get mixed up on which is which and which way is up. Forgetting would be a witch...!
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6641.JPG)
Then started chail drilling and milling in the bar that goes across the middle of each part:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6643.JPG)
giving these shapes:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6645.JPG)
which then had the waste section sawn off each (this is another spot where drawing the lines on was critical, to keep from sawing off the wrong side)
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6646.JPG)
Next step is to round over the transitions around the frame rod holes. Set up the rotary table, and turned the base of a SHCS down to fit the holes and hold the parts aligned in the center hole of the tooling plate. A piece of card stock underneath gives clearance to mill the entire side of the part without damaging the tooling plate.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6647.JPG)
The curved front one is done at both ends. The other front one has square posts above the holes, so that leaves the two back ones with the more complex shapes still to do...
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6648.JPG)
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on February 05, 2020, 06:05:09 PM
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:  Speed and skill as usual!  :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 05, 2020, 06:08:26 PM
:ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:  Speed and skill as usual!  :cheers:
Thanks! I had to hire in some more shop elves to keep the excavator model going at the same time...  :embarassed:
 :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on February 05, 2020, 07:37:10 PM
Oh, the old two projects on the go at once trick, eh? (in my best Maxwell Smart / Don Adams voice)   :Lol:  :atcomputer:

PS re additional elves - hope you notified the Elfensteiner brewery to double the elves' usual order of their stubbies.  Better double-bolt the rum locker too........ :naughty:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 05, 2020, 08:22:41 PM
Oh, the old two projects on the go at once trick, eh? (in my best Maxwell Smart / Don Adams voice)   :Lol: :atcomputer:

PS re additional elves - hope you notified the Elfensteiner brewery to double the elves' usual order of their stubbies.  Better double-bolt the rum locker too........ :naughty:
Actually more like three or four projects at once. Just finished modifying the new sub to add the rudder tabs, need to redo the ballast since that added a couple of ounces (and a 1/4 ounce can effect the trim) for the new servo plus the rudder post. Also have the 3D CAD drawings for the big Holly/Ward Station pumping engines in the works on the third row of burners...The elves have an open account at Elfensteiner's warehouse, and they made the locks for the rum locker so no point in hiding the key...  :facepalm:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 05, 2020, 08:29:48 PM
Lotsa progress on the crossmembers today - got the rest of the corners rounded over on the rotary table:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6652.JPG)
lower set:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6653.JPG)
After a few touchs on the belt sander on the double-curves, drilled the rest of the bolt holes and the pivot holes for the reverse gear control rod:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6654.JPG)
Family shot of all the parts so far. The crossmembers are just set in rough position, did not measure them out for this test fit. Still need to thread the rods and make the middle plate.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6655.JPG)
Starting to look more and more like a Stanley engine!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 05, 2020, 08:30:47 PM
And just noticed, still need to round off the corners on the tall posts where the reverse gear rod is...
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Kim on February 05, 2020, 08:56:20 PM
Great family shot! Isn't it fun when a project starts to resemble what it's supposed to be?  The cross members really add that distinctive look to the Stanley, don't they?
That's looking great Chris!
Kim
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: zeeprogrammer on February 05, 2020, 09:23:19 PM
Looking fantastic!  :ThumbsUp:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 05, 2020, 10:41:25 PM
Thanks guys, one of those moments where the next couple parts really changed the look of everything. It will change again when the middle plate goes on, I bet.
 :cheers:

This afternoon the taps/dies (and some replacement drill bits to piggyback on the shipping) showed up that I needed for the frame rods. Started by threading the top ends M5.5x0.9 - had to turn the rod down a few thou for that.

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6656.JPG)
Those went quick, just a few turns of the die. The other ends will take a bit longer - they are threaded for almost 4 inches to take the nuts that hold/adjust the crankshaft bearing blocks, and the extended length for where they went back to bolt around the axle. Never threaded that long a distance before - gets a bit tiring on the arms! Due to the length, had to turn the rod down in a couple of sections, moving it out from the chuck after each section, or it wanted to flex too much. The threading on this first one went fine, nice and straight. The tailstock holder is guided for the first inch or so, then it came off the guide rod so I was worried it might wander, but no problems there.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6657.JPG)
So, first frame rod complete, three more to thread the bottom ends on. Not tonight! I tried farming it out to the shop elves, but they all came down with sudden 'injuries' and ailments (though one forgot which side he was supposed to limp on a couple times...   >:(   ).
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: zeeprogrammer on February 05, 2020, 10:45:51 PM
Any particular reason you used a 4-jaw chuck? Or is that a centering 4-jaw?
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 05, 2020, 11:09:15 PM
Any particular reason you used a 4-jaw chuck? Or is that a centering 4-jaw?
Yeah, I've found that it will grip much harder, important for threading on the steel. The scroll chuck sometimes will slip a little on steel round stock, leaving scrape marks on the round section above the threads. It takes a little longer to center the 4 jaw, but its worth the extra minute. I used the scroll chuck to turn to diameter, then swapped with the 4 jaw for threading.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on February 05, 2020, 11:41:50 PM


PS re additional elves - hope you notified the Elfensteiner brewery to double the elves' usual order of their stubbies.  Better double-bolt the rum locker too........ :naughty:
[/quote]Actually more like three or four projects at once. Just finished modifying the new sub to add the rudder tabs, need to redo the ballast since that added a couple of ounces (and a 1/4 ounce can effect the trim) for the new servo plus the rudder post. Also have the 3D CAD drawings for the big Holly/Ward Station pumping engines in the works on the third row of burners...The elves have an open account at Elfensteiner's warehouse, and they made the locks for the rum locker so no point in hiding the key...  :facepalm:
[/quote]

Third row of burners! Aha! now I know how you do it - you've got a 12 burner 3 row professional kitchen range somewhere in the shop, don't you?   :noidea:

How did the elves get an account at the Elfensteiner warehouse??? The little b*@@&rs probably back up a truck to the bottling room doors and jigger the conveyor end right onto the truck bed!  BTW re rum locker locks - I'd be welding the door shut in that case..... :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Don1966 on February 06, 2020, 12:00:45 AM
Damn did I go to sleep somewhere in between some of this Dog? Making progress with lightning speed slow down Chris your making us look bad..... :lolb: Oh and did I say..........I...........Like.......... :Love:




 :drinking-41:
Don
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 07, 2020, 07:22:19 PM
Back in the shop again today, got the rest of the frame rods threaded:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6658.JPG)
Then went and picked out some hex steel bar to make the matching nuts for the different positions, and drilled the first length. Went to run in the new M5.5 tap that came with the dies, and ....   :headscratch:   It went in really easy, barely cutting at all.   :thinking:   


Okay, something is swarfed up....  Did some measurements, checked the drill size, looked up the M5.5x0.9 on the chart again, looked at the box the tap came in, then took a closer look at the tap. The size was under what it should be - looked at the tiny letters engraved on the side, and  :facepalm:

They put a M5x0.9 tap in the M5.5x0.9 box....   :wallbang:

Well,  :censored: :censored: :censored: .

Sigh. Called up the supplier, explained what happened, waiting to hear back from the shipping department now...

So, will move on to laying out the large plate below the cylinder block while waiting for that to get sorted out. Hopefully they didnt swarf up the whole stock!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on February 07, 2020, 08:09:03 PM
Sounds like their elves are on the Elfensteiner stubbies as well!  (the little b*%%$rs)  :cussing:

Hope you get the right tap in a good timeframe. Lot of shipments from China are being delayed by the Corona virus outbreak. In a pinch you could make a tap by threading a piece of drill rod and cutting flutes in it, harden and grind the cutting edges, and it would probably do fine for tapping a few nuts.

(Years ago in Cancun I thought I might have a virus after drinking a dozen or more Corona's but the China one is a whole different ballgame)
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 07, 2020, 08:22:46 PM
Sounds like their elves are on the Elfensteiner stubbies as well!  (the little b*%%$rs)  :cussing:

Hope you get the right tap in a good timeframe. Lot of shipments from China are being delayed by the Corona virus outbreak. In a pinch you could make a tap by threading a piece of drill rod and cutting flutes in it, harden and grind the cutting edges, and it would probably do fine for tapping a few nuts.

(Years ago in Cancun I thought I might have a virus after drinking a dozen or more Corona's but the China one is a whole different ballgame)
Should be able to get it from another local supplier if the first one can't fill it. In the meantime, starting to work on the diaphram plate...
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 07, 2020, 09:00:42 PM
Sounds like their elves are on the Elfensteiner stubbies as well!  (the little b*%%$rs)  :cussing:

Hope you get the right tap in a good timeframe. Lot of shipments from China are being delayed by the Corona virus outbreak. In a pinch you could make a tap by threading a piece of drill rod and cutting flutes in it, harden and grind the cutting edges, and it would probably do fine for tapping a few nuts.

(Years ago in Cancun I thought I might have a virus after drinking a dozen or more Corona's but the China one is a whole different ballgame)
Should be able to get it from another local supplier if the first one can't fill it. In the meantime, starting to work on the diaphram plate...
Heard back from them, they are sending a replacement for the wrong tap. Asked them (twice) to check the box contents before shipping, we'll see....

Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 07, 2020, 09:10:11 PM
Got a good start on the diaphragm plate, all the smaller holes are drilled/tapped:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6661.JPG)

The holes at the left/right sides are larger, will need to be bored out to size....
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on February 07, 2020, 09:27:35 PM
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:

Always nice to see the solid gold bars being machined!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 07, 2020, 09:30:12 PM
:ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:

Always nice to see the solid gold bars being machined!
No wonder the shop elves were collecting the swarf into those little bags...!  :Jester:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: kvom on February 08, 2020, 12:12:16 PM
Looks like a lot of cranking to cut those threads (or a die?)
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 08, 2020, 01:27:05 PM
Looks like a lot of cranking to cut those threads (or a die?)
Lots of turning the tailstock die holder with a tommy bar. Then turning it all the way back off again... had to let the hands rest between each rod. Single point threading probably would have needed a follower support to keep the rod from flexing.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: rspringer on February 08, 2020, 04:17:52 PM
When you have a long thread to cut, I have started it on the lathe then chucked in a variable speed drill.  Well lubricated it only takes a few seconds and it has a reverse.  I also bought a sherline 4 jaw self centering chuck for just such projects.  Not quite as accurate as a manual one but close enough (a couple of thousands) for things like that.   
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Jasonb on February 08, 2020, 04:35:07 PM
How slow does the Sherline go? I usually just hold the body of the tailstock dieholder in my hand and run the lathe at slow speed, flick it into reverse to remove the die.

https://www.youtube.com/watch?v=5tHxk9vTWok

That is an odd metric size thread or are you actually using #12 x 28UNF?
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Elam Works on February 08, 2020, 04:44:30 PM
Not true quarter-scale of 7/32-72?  :)

-Doug
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 08, 2020, 05:03:18 PM
When you have a long thread to cut, I have started it on the lathe then chucked in a variable speed drill.  Well lubricated it only takes a few seconds and it has a reverse.  I also bought a sherline 4 jaw self centering chuck for just such projects.  Not quite as accurate as a manual one but close enough (a couple of thousands) for things like that.
Thats a good idea! Have to remember that one. :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 08, 2020, 05:04:38 PM
How slow does the Sherline go? I usually just hold the body of the tailstock dieholder in my hand and run the lathe at slow speed, flick it into reverse to remove the die.

[youtube1]https://www.youtube.com/watch?v=5tHxk9vTWok[/youtube1]

That is an odd metric size thread or are you actually using #12 x 28UNF?
The Sherline will go quite slow, but the torque drops off with the speed, its a small motor without a lot of reduction to the spindle.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 08, 2020, 05:08:43 PM
Not true quarter-scale of 7/32-72?  :)

-Doug
Didn't see that one in the catalogs! The rods are 7/32", so I got that part! Wow, that would have been a LOT of turning that die holder for such a long thread! Might have thought of the variable speed drill idea that Rod mentioned by the third or fourth rod. Or not!

I used M5.5 since it was the closest to scale that I had access to. A #12 would have worked too, actually picked up a 12-24 set at the same time, either would have worked out fine.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 08, 2020, 05:16:24 PM
This morning got the rest of the holes in the plate drilled/bored, with lots of checking positions to make sure things would line up with the cylinder block. Good thing I double-checked, had one of the cylinder rod gland holes started 20 thou to the right! Caught it in time, fortunately!
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6663.JPG)
Here are the parts test fit together - all lined up quite well!   :whoohoo:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6664.JPG)
The spacer tubes screwed into the plate, and the rods slid right through and lined up with the cylinder perfectly, big relief!  Now, for those of you who know what these engines look like, forgive me if I test fit things with the plate or the crossmembers upside down, I did those without checking the drawings, and may have swapped them.  Next up will be to hollow out the underside of the plate, and put the bosses in around the holes top and bottom. Sounds like a good time to get out the fixture plate from the cylinders again, the four mounting holes will be perfect to screw it down with. Once the outside perimeter is shaped, it wont hold in the vise anymore.
 :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on February 08, 2020, 09:36:54 PM
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:

Assembly looks great Chris. On the solid gold cross plate, could you leave a "tail" of unfinished metal to grip in the vise if you need to? You could trim it and blend in the perimeter profile after you had everything fitted and were sure you didn't need it in the vise again. Just a thought.  :shrug:

Off to my shop now to run a few of my own Fetzner valves through the cryo friablation coalescer.   :zap: :insane:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 08, 2020, 09:42:58 PM
:ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:

Assembly looks great Chris. On the solid gold cross plate, could you leave a "tail" of unfinished metal to grip in the vise if you need to? You could trim it and blend in the perimeter profile after you had everything fitted and were sure you didn't need it in the vise again. Just a thought.  :shrug:

Off to my shop now to run a few of my own Fetzner valves through the cryo friablation coalescer.   :zap: :insane:
All the holes fit the rods, so all that is left on the plate is to mill the outline and make the cavity on the bottom side, all of which I should be able to do on the rotary table tooling plate, holding the edges and through the holes. We'll see soon!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Elam Works on February 09, 2020, 02:11:44 AM
Have you realized yet the spacer tubes cannot screw into the diaphragm plate? ... Clearance fit through the plate with a thin nut on the cylinder side to clamp.

Quote
Didn't see that one in the catalogs!
- in reference to 7/32-72 thread. I figured the way to tackle this would be to get a set of #1-72 Geometric head dies and modify the notch on the back to change the nominal diameter from 0.073" to 0.218"; hoping the helix angle was close enough between the two that the relief clearance did not rub.

-Doug


[fix typo, 08Feb20, Doug]
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 09, 2020, 02:19:48 AM
Have you realized yet the spacer tubes cannot screw into the diaphragm plate? ... Clearance fit through the plate with a thin nut on the cylinder side to clamp.

Quote
Didn't see that one in the catalogs!
- in reference to 7/32-72 thread. I figured that way to tackle this would be to get a set of #1-72 Geometric head dies and modify the notch on the back to change the nominal diameter from 0.073" to 0.218"; hoping the helix angle was close enough between the two that the relief clearance did not rub.

-Doug
Why can't they? Mine do, and it works. Still need to make the lock nuts...




Oh. Wait.  :noidea:   Now I get it! The crossmembers are brazed on so I can't turn the rods....


 :facepalm:




Thanks for the save! Still easy to clearance drill out the threads in the plate.


 :cheers: :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Elam Works on February 09, 2020, 04:03:24 AM
Yeeeeerp!

The only holes through he diaphragm plate that are threaded are the large ports for the piston rod/cross head. And that construction is so that you can assemble it. Just remember to install all the required parts onto the piston rod before locking on the pistons!

I don't seem to have a photo of a 'naked' diaphragm plate; must not have thought it was interesting enough. This one (see photo) is a 1920 20hp. After 1915 the pumps were driven off the rear axle, so no slot in the diaphragm plate for the pump rod worked off the right-hand cross head.

Other two photos: Four Stanleys lined up in the driveway, getting a drink of water on the way back from the Lindvilla Orchards (PA) car show to their home in Auburn Heights, DE. Range is determined by the size of the water tank, not the fuel tank.

-Doug
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Art K on February 09, 2020, 04:30:05 AM
Chris,
You're just gonna have to slow down, every time I look at your post I'm 2 pages behind, I just can't keep up, help me out here. Yeah I see how it is gonna be, keepin me up way past my bed time in an effort to keep up with your post's. zzzzz....great work you will have this thing running in no time.
Art
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Steamer5 on February 09, 2020, 07:01:39 AM
Nice cars Doug!

Cheers Kerrin

PS,
  Nice work Chris!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 09, 2020, 02:14:15 PM
Chris,
You're just gonna have to slow down, every time I look at your post I'm 2 pages behind, I just can't keep up, help me out here. Yeah I see how it is gonna be, keepin me up way past my bed time in an effort to keep up with your post's. zzzzz....great work you will have this thing running in no time.
Art
Reminds me of the old joke, I'll write slow cause I know you don't read fast...  :Lol:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 09, 2020, 02:18:06 PM
Yeeeeerp!

The only holes through he diaphragm plate that are threaded are the large ports for the piston rod/cross head. And that construction is so that you can assemble it. Just remember to install all the required parts onto the piston rod before locking on the pistons!

I don't seem to have a photo of a 'naked' diaphragm plate; must not have thought it was interesting enough. This one (see photo) is a 1920 20hp. After 1915 the pumps were driven off the rear axle, so no slot in the diaphragm plate for the pump rod worked off the right-hand cross head.

Other two photos: Four Stanleys lined up in the driveway, getting a drink of water on the way back from the Lindvilla Orchards (PA) car show to their home in Auburn Heights, DE. Range is determined by the size of the water tank, not the fuel tank.

-Doug
On the plans I have, the large holes are not threaded, and the stuffing box that goes in them has thin nuts top and bottom to hold them in the holes. Why would those holes need threads to assemble?  :headscratch: 
Thanks for all the information!!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Elam Works on February 09, 2020, 02:55:10 PM
Chris,

There are a number of mistakes on the plans. The copy that I have, sheet M8, revised 4/96, shows the thread annotation on view AA in the upper left corner; 3-1/8 x 20. Just one aluminum jam nut, on the cylinder side.

I should have been more clear (it was late!). Threads not needed on the diaphragm plate stuffing box to assemble the crosshead, just a large aperture through the diaphragm plate to pass the crosshead through. And then a means to close up the gap.

The diaphragm stuffing box needs to be cupped pretty deep as the crosshead does pop up into the diaphragm plate slightly. See rendering.

-Doug
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 09, 2020, 06:12:49 PM
That makes a lot more sense to me now Doug, great! I had been working from the 3D model that the full size print plans were generated from, since it let me scale the model down and give the model-size dimensions directly. So, I was not looking at the full size prints with the annotations (will do that now, have a printed-out set of the full size). The 3D model does not have all the threads modelled in, they did that with annotations as you pointed out.

I had been wondering why the packing gland was so large and had the deep cup shape, now I understand. Amazing how much they packed into a small space on these.

Again, many thanks! I have only seen these engines briefly in person, never had a chance to really study a real one.
 :cheers: :cheers: :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 09, 2020, 06:31:19 PM
Catching up on pictures from yesterday and today...  Got started cuting the outline of the plate, and at the same time recessing the inside of it since the arcs around the rim need to match inside and out. There are six different center points for the arcs of the rim, so they were laid out as well as the start/stop points of each one. Started with the long edges and worked my way around  the rim.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6667.JPG)
As I went, I took the inside area down in each section, and cleaned up the center later. The depth I took things to first was to the depth of the bosses, the rest was taken down to full depth when the bosses were outlined.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6668.JPG)
When cleaning out the inside, had to stop and vacuum out the chips frequently, or it looked like King Midas's bathtub.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6670.JPG)
Got the entire rim and inside taken down,
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6671.JPG)
then did the bosses around the large holes:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6673.JPG)
The block I started with was thicker than needed for the finished part, so next took the top surface down to the height of the bosses on the top, which go around all the holes:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6674.JPG)
Then made up some plugs for the holes to align them, and started cutting the bosses around each hole. They are not very tall, but its a very visible detail.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6676.JPG)
around all the small ones too...
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6677.JPG)
As you can see in the previous pictures, the end mill leaves nice toolmarks everywhere, even though the surface is smooth to the touch. A little time with the airbrush sandblaster evened it all out and gave it a nice pebbly finish:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6679.JPG)
bottom side:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6680.JPG)
Next I'll do some nickel plating on this part, like I did on the Marion Valve project - still have a container of the solution and some nickel rods left. As Doug pointed out, the original was aluminum - don't think I can use the same process to plate that on so nickel will do, just scuff it so its not shiny.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Flyboy Jim on February 09, 2020, 06:41:21 PM
That's quite the "project within a project" Chris. Well done.  :ThumbsUp:  :popcorn:

Jim
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 09, 2020, 06:42:42 PM
That's quite the "project within a project" Chris. Well done.  :ThumbsUp: :popcorn:

Jim
Thanks Jim, I was getting nervous near the end that I'd mess up something and have to start over!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on February 09, 2020, 07:34:15 PM
Were the shop elves swearing at you for drilling holes in their nice elliptical cake pan Chris ?  :Lol:

Looking great!  :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:

Nice recovery from the helical grooved holes vs smooth holes assembly issue. Had a few of those myself.  :embarassed:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 09, 2020, 09:54:09 PM
Were the shop elves swearing at you for drilling holes in their nice elliptical cake pan Chris ?  :Lol:

Looking great!  :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:

Nice recovery from the helical grooved holes vs smooth holes assembly issue. Had a few of those myself.  :embarassed:
Nah, but now they want me to make them the rest of the BBQ cooker...  They are out now trying to lasso a cow (actually its a squirrel, but to them thats big enough).
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on February 09, 2020, 10:11:34 PM
Lassooin's one thing, shootin's another.  :paranoia:

Squirrel stew I've tried, but squirrel prime rib? Hmmmmmm...........   :Lol:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 10, 2020, 04:00:01 PM
Doug, I took a look at the plate, and it will not quite clear the lathe bed to thread the piston gland holes for the stuffing boxes. So, looks like I'll need to do it the alternate way that the 3D model showed after all, with a thin lock nut top and bottom on the boxes. Not quite standard, but it will be very close! Stanley made so many changes engine to engine that this is not THAT far off plausible.   :shrug:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Elam Works on February 10, 2020, 04:26:21 PM
Chris,

Four inch right-angle grinder and convert it into a gap bed lathe...  ::)

-Doug
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 10, 2020, 05:14:54 PM
Chris,

Four inch right-angle grinder and convert it into a gap bed lathe...  ::)

-Doug
Um... Errr... DONT give the elves those kinds of ideas!!   :o   


And today is one of those days that I look at the parts, and say 'Well, Nuts!'.  Not because anything went wrong, but because I need to make up a variety of them to be able to assemble the parts!   :Lol:   Still waiting on the replacement M5.5 tap for the one they goofed on the order, but I can start on the others. There are the ones needed for the lock nuts on the plate, plus a bunch of castle nuts needed for the rods between the crossmembers. While that is in progress, I have the plate in soaking in the plating bath getting a layer of nickel.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: gbritnell on February 10, 2020, 05:55:44 PM
Chris,
A man after my own heart watching all that metal sculpting being done. Great work!
gbritnell
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 10, 2020, 06:32:04 PM
Chris,
A man after my own heart watching all that metal sculpting being done. Great work!
gbritnell
Thanks George, guess I am still a carver at heart, back to my first hobbies as a kid!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 10, 2020, 06:41:22 PM
While the plate is in plating   ::) , got started on the nuts for the piston rod glands that go in that plate (to seal up the chamber around the crankshaft/eccentrics, which bathes everything in oil). These nuts are bigger than any hex stock I have, so started with a short length of offcut round bar. Took it down to size on the mill using the rotary table:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6681.JPG)
The hex'ed section SHOULD be long enough for the 4 nuts I need to get out of it, but just in case its not I turned it over and did the remaining bit using the 3-jaw to hold it:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6687.JPG)
Also made up the four smaller nuts from hex bar for the spacer tubes, to clamp them to the plate. Speaking of which, it is done with bathing in nickel and electricity:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6683.JPG)
So, trial fit everything together again:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6684.JPG)
The nuts on the spacer tubes keep everything snug and square, here is the bottom view with the crossmembers slipped on roughly in position:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6685.JPG)
Getting to be quite a handful!
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6686.JPG)

Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 10, 2020, 06:59:48 PM
Went out to get the mail, and the package with the replacement tap is here.    :cartwheel:

BUT!
Opened it, and they sent me the correct size (good) but its a die, not a tap.   :killcomputer: :killcomputer: :killcomputer:

Got a call in to them now....  :facepalm2:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 10, 2020, 07:46:24 PM
Started in on the stuffing boxes, turning the outside to size and cupping the inside:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6688.JPG)
The cupped side is towards the crankshaft, and gives room for the crosshead (thanks Doug!) . The other side will have a couple of recesses for the packing material and a cap. The way Stanley did it, the cap threads down below the surface of the cap into a recess. At this size, I dont think that is do-able, so I think I'll extend a short post on that side so there is room to thread it on.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Don1966 on February 11, 2020, 12:10:51 AM
Still with you Dog and loving it......  :Love:



 :popcornsmall:
Don
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 11, 2020, 01:21:36 AM
Still with you Dog and loving it......  :Love:



 :popcornsmall:
Don
Glad to have you along!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: zeeprogrammer on February 11, 2020, 11:45:44 AM
Awesome work. Loved the last photo...it gives a good sense of scale.

I'll have to find out more about your nickel plating process.
BTW In the last photo, what's that lever under the headstock to the left and behind the chuck?
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 11, 2020, 02:07:28 PM
Awesome work. Loved the last photo...it gives a good sense of scale.

I'll have to find out more about your nickel plating process.
BTW In the last photo, what's that lever under the headstock to the left and behind the chuck?
Hi Zee. There are details and a link to the site I got the plating setup over in my Marion Valve engine build thread. Pretty simple method, uses a vinegar solution so no nasty acids.


That black lever is the engagement lever for the sherline threading attachment, connects the spindle and leadscrew for the carriage. Your lathe should have a little plug there, the kit adds the lever. I put that on many years ago, this is only the second project where I used it.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: steam guy willy on February 11, 2020, 03:18:54 PM
Looking good and that is an incredibly clean hand holding the engine ?!!!! :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Roger B on February 11, 2020, 03:40:27 PM
Still following along (and trying to keep up  ::) ) The assembly in your hand shows the scale well  :praise2:  :praise2:  :wine1:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 11, 2020, 03:54:21 PM
Looking good and that is an incredibly clean hand holding the engine ?!!!! :popcorn: :popcorn:
Had just washed off the oil. Or maybe its my stunt double...
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: zeeprogrammer on February 11, 2020, 04:11:02 PM
Looking good and that is an incredibly clean hand holding the engine ?!!!! :popcorn: :popcorn:
Had just washed off the oil. Or maybe its my stunt double...

So long as it's not an elve's hand. That would be scary.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Roger B on February 11, 2020, 04:23:02 PM
If it was an Elve's hand it must have been a George Britnell model  :)  :)  :)
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 11, 2020, 05:00:48 PM
Thought I heard giant footsteps outside last night...!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 11, 2020, 05:07:15 PM
More done on the stuffing boxes - threaded the inside of the hex bar (apparently forgot to take a picture of that) as well as the ends of the bar that the boxes are being cut on:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6689.JPG)

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6690.JPG)
test fitting the hex threads on it...
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6692.JPG)
Those all fit nicely after a few more passes (threaded both ends of the bar), so went ahead and parted off the nuts from the hex:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6694.JPG)
Now will get back to finishing up the stuffing boxes - need to fiddle around in Fusion to figure out the best way to make the top ends of them.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 11, 2020, 07:58:00 PM
Settled on making a little arbor to hold the stuffing boxes, and extended the threaded area up above the surface of the boxes - on the original they were recessed in, but I did not come up with a good way to do that. Though, hmmm.... maybe I can solder on a ring to make the outer part... Yes! That should work. 'Talking' things through always helps get the ideas going!


Anyway, here is one of the parts on the arbor, turned down the end and threaded it M10. Afterwards, trimmed down the post a little more, it was too long looking.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6695.JPG)
A couple pictures of the parts fit onto the plate:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6696.JPG)

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6698.JPG)
Was about to make the caps to finish these parts off, but will also make the outer rings...
 :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Johnmcc69 on February 11, 2020, 10:27:19 PM
 :ThumbsUp:
It's looking great Chris!

 John
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 11, 2020, 11:54:15 PM
:ThumbsUp:
It's looking great Chris!

 John
Thanks John!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 12, 2020, 12:01:49 AM
Got the rings made for the stuffing boxes - gives them the right look though they are slightly taller than the pure scale should be since the threads are still not recessed below the outer diameter of the part.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6701.JPG)
The packing nuts were simple to turn up, drilled/threaded on the bottom side, and the top has holes around the edge to allow tightening down the nut. In this picture the parts still had to be trimmed to final hieght.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6702.JPG)
All trimmed, and test fit in the engine (enough done to start calling it that I think!)
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6704.JPG)
The extra height of the packing nut section takes up some room that should be open, but no interference problems. I DO need to trim down and sandblast that intake elbow though, looks really chunky!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Flyboy Jim on February 12, 2020, 02:46:01 AM
Looks like a successful day Chris.  :) I got the garden shed cleaned up!  :(

You're getting a lot of use out of that thread cutting attachment. I have one, but haven't used it yet. Got it on my bucket list along with silver soldering.

Jim
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 12, 2020, 03:17:05 AM
Looks like a successful day Chris.  :) I got the garden shed cleaned up!  :(

You're getting a lot of use out of that thread cutting attachment. I have one, but haven't used it yet. Got it on my bucket list along with silver soldering.

Jim
Start with the silver soldering, you'll use it a lot!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 12, 2020, 06:32:18 PM
Today been working on the tie rods that go between the crossmembers. Made up the rods, threaded each end 4-40, then started on the nuts. These are castle nuts, from the photos it and plans it looks like these rods may have served to compress the rods towards each other a bit, to adjust the tension in the crosshead guides? The rods dont have shoulders, just a castle nut at each end that can be pinned/wired through the rod. The nuts were drilled/tapped/parted off a length of stainless rod, then the slots cut in using a small dental bur in a high speed air handpiece.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6707.JPG)
I can see now why they used the holes around the edges of the packing glands to adjust things, its getting a little crowded between all the parts, and there are lots more to go in there! Been looking ahead at the valve rod guide piece, that one is going to be very interesting to make...
(http://listerengine.com/coppermine/albums/userpics/10043/Valve_Rod_Guide.jpg)

Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 12, 2020, 08:25:41 PM
Been studying the plans for the valve rod guide, and have a plan of attack on it. Its way too tight on clearances to mill out of one piece, less than an inch across, so I will piece it up from brass bar stock. The crossbar will start as half inch square bar, longer than needed so the cylinders on the ends are enclosed, and be drilled for the other cylindrical shapes. Silver solder it all, then mill the square bar down to size. Will need some temp pins to hold things in place for soldering.


Pics as it happens later...
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Elam Works on February 12, 2020, 08:27:34 PM
Quote
Today been working on the tie rods that go between the crossmembers. Made up the rods, threaded each end 4-40, then started on the nuts. These are castle nuts, from the photos it and plans it looks like these rods may have served to compress the rods towards each other a bit, to adjust the tension in the crosshead guides?

The diaphragm plate and the bearing main bearing caps fixed the frame rod centers. The tie rods, as you noted, just stop the cross head guides from spreading apart. I don't know that they were intended to pinch the guides together as you needed some operating clearance. Normal practice was to shim between the cross head guide and the cross head supports to get the right distance, not torque up on the tie bolts.

It was not until 1922 and the model 740 that Stanley double nutted the tie bolts (a nut above and below the cross member) so that they stopped the cross head guides from spreading or converging. It helped stiffen up the frame rod assembly slightly. To offset this improvement they started stamping the engine serial number (in addition?) on a frame rod, adding a stress riser. Previously it was just found on the rear cross member, top face.

-Doug
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Elam Works on February 12, 2020, 08:32:14 PM
What? Plenty of room!  Why I must measure several inches across on the monitor...  :)

-Doug
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: tghs on February 12, 2020, 08:51:26 PM
I'm seeing a 90degree jig with four rods, 4 turned and drilled parts and a crossmember all soldered together at one time,, or cris will just carve it out of a solid block..
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 12, 2020, 09:06:19 PM
Quote
Today been working on the tie rods that go between the crossmembers. Made up the rods, threaded each end 4-40, then started on the nuts. These are castle nuts, from the photos it and plans it looks like these rods may have served to compress the rods towards each other a bit, to adjust the tension in the crosshead guides?

The diaphragm plate and the bearing main bearing caps fixed the frame rod centers. The tie rods, as you noted, just stop the cross head guides from spreading apart. I don't know that they were intended to pinch the guides together as you needed some operating clearance. Normal practice was to shim between the cross head guide and the cross head supports to get the right distance, not torque up on the tie bolts.

It was not until 1922 and the model 740 that Stanley double nutted the tie bolts (a nut above and below the cross member) so that they stopped the cross head guides from spreading or converging. It helped stiffen up the frame rod assembly slightly. To offset this improvement they started stamping the engine serial number (in addition?) on a frame rod, adding a stress riser. Previously it was just found on the rear cross member, top face.

-Doug
Fascinating how this design evolved over the years! I had seen how they have a ring on the front rods to hold the valve guide from moving on the tie rods, was surprised to see that there was nothing on the others. Sounds like they got around to that later, very interesting.

One other question for the crankshaft area - there are a pair of nuts on each frame rod holding the crankshaft bearing blocks together. But, there is then a spring and another nut. What is that for? Is the 'nut' inside the spring, against the bearings, really a nut, or does that have a clearance hole? Guessing it is part of the mount to the frame?

Thanks so much (again) for helping me learn all this!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 12, 2020, 09:07:19 PM
What? Plenty of room!  Why I must measure several inches across on the monitor...  :)

-Doug
Sure, after you took away half the parts and zoomed in!   :ROFL:   Maybe I can just lean down closer to the table...   :lolb:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 12, 2020, 09:08:46 PM
I'm seeing a 90degree jig with four rods, 4 turned and drilled parts and a crossmember all soldered together at one time,, or cris will just carve it out of a solid block..
I thought about that first, but the crossmember where it is square is smaller than the four rods, so making that fit would be tough (doable, but tough). So will leave out the jig, and start with a larger square section and mill/file it after soldering.
 :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 12, 2020, 09:14:57 PM
Okay, here is the start of the valve guide:

Started with some 3/8" square bar (said 1/2" in earlier post, that was a brain fart) and laid out the pattern of holes in each side. I milled the right end square first, and used that as an index point against the end of the vise to get the distances. Did some figuring on a scratch pad first (on right of vise) to know how far in to move for each hole, and zeroed the handwheel at the start.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6709.JPG)
After both sides were drilled, am left with this piece for the square crossmember:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6710.JPG)
Next I'll turn the round pieces down to size, and can prep everything for silver soldering the joints. The two outer holes will hold the vertical bars, and the outer arc of those holes is the size of the finished crossbar.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: tghs on February 12, 2020, 09:24:30 PM
are you going to turn the insert section of the guide fixtures long and then add a sleeve to the back side off the crossmember.. should all align nicely
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 12, 2020, 09:30:35 PM
are you going to turn the insert section of the guide fixtures long and then add a sleeve to the back side off the crossmember.. should all align nicely
The guide tubes will be all one piece going through the crossmember. The crossmember will be trimmed down to size after soldering. Will need some hand filing on those joints. There will be no sleeve inside the tubes, the valve rods will be steel on the guides brass so that is fine.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 12, 2020, 11:17:30 PM
This should make it clearer which approach I am taking on the valve guide. Sure to be many ways to dismantle this particular feline, this is the way I picked.
Started by turning down the vertical tubes (simple tubes, no features) and then the long side of the horizontal tubes.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6711.JPG)
Parted them off, flipped around in the chuck, and turned the flange and threaded the end, finally drilling the bore.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6713.JPG)
Here are the parts so far slipped together for a test fit:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6715.JPG)
The square section is overly thick and long. Next I'll trim down the center, where the blue lines are sketched in. I need to leave a section around the holes till it is soldered, but I can remove a bunch of the material in the center now while it will be easier to get at. The vertical tubes are slightly long still, they will be taken back later to make them line up with the valve rod centers, too much chance of them slipping slightly during soldering to take them back now.
This ought to work, I hope! These shapes so far have been simple and quick to turn out, the final assembly is much more of a complex shape. Forgot to include a ruler, for scale the square section is 3/8" across the flats, the threads are M8.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Brian Rupnow on February 12, 2020, 11:26:56 PM
Chris--When I have to set down and take a break from my project, I always set at my computer and look at your project. Very, very nice.---Brian
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 12, 2020, 11:33:03 PM
Chris--When I have to set down and take a break from my project, I always set at my computer and look at your project. Very, very nice.---Brian
Likewise, someday I will give an IC engine a try. Not yet, too many steamers left!   :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on February 13, 2020, 12:24:20 AM
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Elam Works on February 13, 2020, 06:07:26 AM
Quote
One other question for the crankshaft area - there are a pair of nuts on each frame rod holding the crankshaft bearing blocks together. But, there is then a spring and another nut. What is that for? Is the 'nut' inside the spring, against the bearings, really a nut, or does that have a clearance hole? Guessing it is part of the mount to the frame?

About those main bearing caps. There is a nut on the cylinder end that the bearing caps abut. These were adjusted to all be equal distant from the cross head, cylinder, or whatever; and then cross pinned and brazed in place on some models. Then the fore and aft bearing cap slide on. Then a nut to clamp the bearing caps. A thin steel plate spans the upper and lower frame rod, the corners of which are bent over as a form of nut lock. The next nut you see is what the rear axle assembly abuts. These are adjusted fore and aft to set the gear mesh. Coil springs are used to keep the lock plate against the bearing cap nut. When you change the gear ratio, the nuts have to be moved quite a bit and you have to use longer or shorter coil springs to suit the resulting gap. The attached pic of an engine in-situ might clarify. This a model 740, circa 1922. And another of a 1918 where the locking plates are more visible.

-Doug

-Doug
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 13, 2020, 01:26:17 PM
That clarifies things a lot!  I didn't understand what the thin locking plates were for, and it makes sense about the axle mount too. All the pictures I have seen were off the axle. Is the cylindrical unit above the axle a generator for lights?
 :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 13, 2020, 04:32:50 PM
More on the valve guide - trimmed back two of the sides on the square bar that will be hard to get at later, then tapped for some brass screws to hold everything in place. These worked out great, measured the length on the guide tubes and tightened them, thenran the part into place with the tie rods, and the screws loose (to match mine) on the end tubes and slid the tubes into place then tightened them down. That got everything into good alignment for soldering.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6716.JPG)
In the picture above, the end tube sections on the right will be trimmed back with the square bar, the sections on the left position the part against the crossmember on the left. Here are the other ends of the guide tubes, where the threads are, sticking out of the plate - there will be thin nuts here to hold them.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6717.JPG)
Got the parts soldered, the tubes were not a tight fit so the solder flowed right into the joints, should be solid. Will let that cool and give it a soak in the pickling solution to clean it up for finishing....
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6718.JPG)

Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Elam Works on February 13, 2020, 05:30:27 PM
Quote
Is the cylindrical unit above the axle a generator for lights?

Yes, it is a generator. Later models had electric lights and a electric ignitor for the burner.

-Doug
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 13, 2020, 06:50:42 PM
And one pickled valve guide, ready for the rest of machining.

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6720.JPG)
Tried a new pickling solution, Zee's Stinking Hoppie. Think he'll notice the coppery flavor? Had one of the elves trot down there with the part to dunk it in his bottle...   :Lol:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: zeeprogrammer on February 13, 2020, 06:56:37 PM
Tried a new pickling solution, Zee's Stinking Hoppie. Think he'll notice the coppery flavor? Had one of the elves trot down there with the part to dunk it in his bottle...   :Lol:

I can put up with a lot of things...but touching my Stinking Hoppie makings is not one of them.  :cussing:
Also, your faith in your elves is misplaced. If one of them manages to grab a Stinking Hoppie, he/she may not want to go back.  ;D
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 13, 2020, 08:09:59 PM
Tried a new pickling solution, Zee's Stinking Hoppie. Think he'll notice the coppery flavor? Had one of the elves trot down there with the part to dunk it in his bottle...   :Lol:

I can put up with a lot of things...but touching my Stinking Hoppie makings is not one of them.  :cussing:
Also, your faith in your elves is misplaced. If one of them manages to grab a Stinking Hoppie, he/she may not want to go back.  ;D
No worries there, the elf was in full HazMat gear since I told him the bottle contained gnome exhaust... I think he took some more along to refill the bottle with...   :LittleDevil:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 13, 2020, 08:13:12 PM
Update on the long-missing/misplaced/mispicked M5.5 tap that I've been waiting for, and asking for replacements for the replacement one... Thought it should be here today, turns out they took an extra day to carrier-pigeon it over to the post office, finally gave me tracking info (after asking for it), and it wont be here till Saturday. Just in case they still cant read a label on their shelf, I got an order in for one elsewhere that I threw in on an order for other parts. We'll see which gets here first and correct!
So, still can't make the nuts for the frame rods....   :censored:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 13, 2020, 08:19:36 PM
Continuing on with the valve rod guide, with it cleaned up in the pickle, started milling away the last material in the center areas...
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6721.JPG)
and finished off with rounding the outer ends on the sander and filing...
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6724.JPG)
before assembling into the engine:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6726.JPG)
things all fit well so far, next need to make the nuts for the top of the valve guides.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6728.JPG)
Getting pretty crowded in that space, and have not even started the crosshead guides or the Stephenson linkages that go in there!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 13, 2020, 08:21:11 PM
Oh, and I need to add the rings around the tie rods through the valve guide...  :slap:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on February 13, 2020, 09:05:57 PM
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:

Hope the elves' squirrel roundup went well the other day and they got a few sides and some 'burger in their freezer.   :LickLips: :shrug:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Vixen on February 13, 2020, 09:41:17 PM
Hi Chris

Still quietly watching, admiring ans learning. Looks goooood   :ThumbsUp: :ThumbsUp: :ThumbsUp:

Mike
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Don1966 on February 14, 2020, 01:39:31 AM
Looks good Dog still with you and enjoying it!..... :Love:




 :paranoia:
Don
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 14, 2020, 07:06:01 PM
Yesterday made the nuts for the valve guides, and added the ring to the tie rods to hold the guides in place.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6731.JPG)

Then, to my amazement (and the elves too), the CORRECT tap for the M5.5 nuts finally showed up.   :pinkelephant: Elfred and Elfric were quite shocked, and had to study the markings and measure it to be sure. They can't figure out why it was so hard to get one...
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6734.JPG)
Now they, um, I, can make the nuts for the frame rods, 16 of them I think. Plus 4 more if I add the ones at the ends that would hold the engine to the axle.
 :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on February 14, 2020, 09:01:12 PM
The one on the left's got that look in his eye, like he's thinking "hey, let's dump this on the concrete floor and see if we can chip it!" , the little b#$$%rs.    :Lol:

Crosshead guide , rings, and nuts look great!  :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: steam guy willy on February 15, 2020, 01:53:56 AM
Hi Chris, do your little helpers have their own little pots of swarfega ?!!!

 :Lol: :Lol:

Willy
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 15, 2020, 04:05:29 AM
Hi Chris, do your little helpers have their own little pots of swarfega ?!!!

 :Lol: :Lol:

Willy
I've learned not to ask...!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 15, 2020, 09:42:16 PM
Got all the nuts made for the frame rods, from the top ones that hold the cylinder block to the spacers,
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6735.JPG)
Down through all the ones along the rods - that hold the crankshaft bearing blocks and also the engine to the axle. The end ones are acorn nuts - spotted that in one of Doug's photos so made them up by drill/tapping halfway through and turning the other end round-ish and smoothing with a file.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6739.JPG)
Family shot for scale:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6737.JPG)
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: zeeprogrammer on February 15, 2020, 10:46:26 PM
Wow Chris. You sure are moving along. Looks fantastic.  :ThumbsUp:

The one on the left's got that look in his eye, like he's thinking "hey, let's dump this on the concrete floor and see if we can chip it!"

The one on the right seems to be saying "What the heck is that?!".
But your elves aren't the smartest ones around.  ;D
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 15, 2020, 11:06:07 PM
Wow Chris. You sure are moving along. Looks fantastic.  :ThumbsUp:

The one on the left's got that look in his eye, like he's thinking "hey, let's dump this on the concrete floor and see if we can chip it!"

The one on the right seems to be saying "What the heck is that?!".
But your elves aren't the smartest ones around.  ;D
Uh oh, now you've done it. My elves just texted yours, with a report of elf bashing. Bad offense in thier union. That sound you hear in the middle of the night will be thier enforcement team sneaking in to your room to... well, shouldn't say, you'll find out!   :o
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: steam guy willy on February 15, 2020, 11:39:28 PM
Hi Chris, do your little helpers have their own little pots of swarfega ?!!!

 :Lol: :Lol:

Willy
I've learned not to ask...!


Perhaps you could make a beam engine and leave the Iron  Maidens lying around ?!!! :lolb:  I haven't had any trouble from them recently !!! :ThumbsUp:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 16, 2020, 12:14:39 AM
Dunno Willy, that elf seems to be enjoying that...   :embarassed:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 16, 2020, 06:15:43 PM
What? Plenty of room!  Why I must measure several inches across on the monitor...  :)

(http://www.modelenginemaker.com/index.php?action=dlattach;topic=9468.0;attach=109947;image)

-Doug
Hi Doug, I am laying out the stock for the valve tie rods and the piston crossheads, and was looking back at the pictures you posted. In this one, the crosshead guide looks completely different than any of the other plans or photos I have seen, with a squared slot in the guide rather than the usual arced surface. Is this just a partial view of the parts, or did they make the guiide this way at some point? In the plans and photos I have, the outer surface of the crosshead and the inner surface of the guide are arcs on a common circle.
Before I go too far on the parts, thought I had better ask!

Thanks,Chris
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 16, 2020, 07:13:00 PM
This morning got the valve and piston rods shortened to length and the ends threaded to go into the fittings below. The piston rod lower end was most likely one piece (or welded) to the crosshead, but I am threading it for adjustment and assembly ease. The lower ends of the valve rods go into the tie rods that slide in the valve guide I made the other day, and connect to the stephenson linkage.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6744.JPG)
Aside from gaskets, I THINK that completes the cylinder assembly. Started in on the valve tie rods from square bar, threaded the inside of the ends to fit the valve rods, and turned the ends to fit the valve guides.

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6743.JPG)
The square section will next be slotted to fit over the slide link, where the blue lines are sketched on. I am leaving the extra stock below that for now to have a way to hold it.

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6745.JPG)

Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on February 16, 2020, 07:40:31 PM
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Elam Works on February 16, 2020, 08:58:59 PM
Quote
...the crosshead guide looks completely different than any of the other plans or photos I have seen, with a squared slot in the guide rather than the usual arced surface. Is this just a partial view of the parts, or did they make the guiide this way at some point?

Chris,

This was the type of guide they used on the 20hp in 1913-14 with a Ø5/8" x 1/2" roller. This particular CAD model being of a 1913 engine that was in the shop for overhaul. In 1915 they changed to a crosshead guide with a convex surface. In 1917 it changed to concave (with crosshead being convex.) This they kept until the advent of the trunk guides on the SV engines, 1925-26. so depends on what year you are modeling or if going hybrid, which type you like.

-Doug

Ref: Design Evolution of the 20hp Stanley Engine.
http://www.modelenginemaker.com/index.php/topic,9311.msg207297.html#msg207297
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Elam Works on February 16, 2020, 09:00:03 PM
Quote
The piston rod lower end was most likely one piece (or welded) to the crosshead, ...

Forged integral. The forging details did evolve over time, along with the shape of the bearing surfaces for the crosshead guide. Until they went to he trunk guides of 1925-26. Those did thread into the crosshead and were locked by a pinch bolt.

-Doug
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 16, 2020, 09:14:35 PM
Thanks again Doug!!  May your shop elves always be friendly and helpful!  (hmm, theres a christmas card in there... )
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 17, 2020, 04:26:36 PM
This morning chain drilled

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6746.JPG)
and milled out the slots in the valve tie rods - used a 3/32" end mill.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6747.JPG)
then drilled/tapped the sides for 2-56 screws to hold the pivot bearings
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6748.JPG)
and turned the bearings out of bronze. These are the smallest bearings I've ever made, .109 diameter x .113 long. Hope the shop elves don't want a new pinky ring!
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6749.JPG)
Parts in place on the engine:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6750.JPG)
Next up, the crossheads for the ends of the piston rods.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 17, 2020, 06:22:16 PM
And this afternoon started on the crossheads. Cut some lengths of 303 stainless bar, and drilled the center hole for the con rod bearing:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6751.JPG)
then used the dial indicator to center it in both directions in the 4-jaw on the lathe,
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6752.JPG)
to drill/tap the hole for the piston rod, and turn the OD down to size:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6755.JPG)
Next will move over to the mill, with the rotary table set up vertically, to mill out the recesses in the sides of the crosshead.
While I was at the lathe, turned up a couple of lock nuts for the piston rods:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6756.JPG)

Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Kim on February 17, 2020, 06:25:00 PM
More good looking little parts!  Way to go, Chris!  :popcorn:
Kim
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 17, 2020, 06:31:32 PM
Thanks Kim, little by little working my way down towards the crankshaft end of the engine. Still marvelling at how much they pack into a small space, and trying to keep track of what order everything has to be assembled in.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: tghs on February 17, 2020, 07:38:33 PM
you know this rate of progress is really making some of us look bad,, but I am learning and planning things from it all :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 17, 2020, 07:47:06 PM
you know this rate of progress is really making some of us look bad,, but I am learning and planning things from it all :cheers:
No worries, you are back in that silly universe with only 24 hours in a day...!   ;D
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 17, 2020, 08:28:31 PM
Finishing off the crossheads with a combination of milling out the larger recesses and rolling the edges with a rotary tool/dental bur.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6757.JPG)
test fit on the engine:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6758.JPG)
For the crosshead guides, I think I can make them by boring the ID into a short bit of bronze then cutting that into quartered slabs for the four guides, maybe start on that tomorrow.
 :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on February 18, 2020, 12:15:44 AM
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Craig DeShong on February 18, 2020, 12:25:50 AM
Looks great Chris.

 :popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 18, 2020, 01:30:10 AM
Well, I think a polite way to put this would be 'Gnome Exhaust!'.   :o

Getting things bolted up and all the current parts in place to double check the measurements for the crosshead guides on the plans to the model, and things are not lining up. The holes in the ends of the crossmembers should be down the centerline of the piston rods and crossheads, and they are not - they are about 40 thou too far outwards each end from the center line. That would make the arcs in the guides not seat on the crossheads, and torque everything to the side.


Apparently I mis-counted or mis-read something when making the crossmembers, and they are too wide. The inner sections are fine, but the tabs and holes on the ends are off. So, two options: silver solder plugs into the holes, remill the end tabs farther in, and redrill the holes, or remake the crossmembers from scratch.

 :thinking:

Not sure which would be best - plugging 8 holes successfully, may take a re-solder pass on some, with all the cleanup, then redoing the ends, and hope the drill does not get drawn off by a seam, or just make a new set. I'm leaning rowards making a new set correctly, they did not take that long, and I've got the center sections of the first set as a guide to double-check all the setups, since they line up very nicely with the rest of the parts.

I had worked from the end of the stock, moving in by calculated distances to lay out the features, and must have swarfed up a bit of math along the way. Not that big a deal, at least it was not on the cylinders! Fifty steps forward and one back is a good average.

Ah well, go watch a movie with the elves and come back at it tomorrow!   :wine1:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Brian Rupnow on February 18, 2020, 01:46:39 AM
Chris--I just ran across this video while prowling thru Youtube. If you haven't seen it, I think you will find it quite enjoyable.---Brian
https://www.youtube.com/watch?v=ZpFqJguz8Vw
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 18, 2020, 02:11:51 AM
Brian, that is a terrific video!! I love that truck, need to go look up that design, would be a great model. And the shovel, with a cable drive to the boom rather than chain, was remarkably quiet. Thanks so much for the link!!   :cheers:


EDIT: Anyone know where that video was taken?
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Art K on February 18, 2020, 03:33:35 AM
Here and all I was going to say was that it was a great way to kill 7 minutes.
Art
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Flyboy Jim on February 18, 2020, 03:45:58 AM
Great video Brian. It's hard to imagine that these were state of the art machines back in the day and how much work they got done compared to hand carts!

Jim
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: kvom on February 18, 2020, 01:01:13 PM
Almost sad to see dirt dumped on that pristine truck.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: steamboatmodel on February 18, 2020, 02:43:36 PM
you know this rate of progress is really making some of us look bad,, but I am learning and planning things from it all :cheers:
No worries, you are back in that silly universe with only 24 hours in a day...!   ;D
I think somewhere along the line I have slipped into one with only 18 Hour days!
Gerald.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 18, 2020, 11:44:31 PM
Was out most of the day, but got a start on remaking the crossmembers this afternoon. Started by going back to the 3D model/plans, and coming up with a drawing page with the crossmembers and the holes in them as sets of chain dimensions as well as dimensions all from one end of the bars. This got rid of any chance that I had mis-added a dimension the first time around, and matched the way I drilled them this time. After trimming all the bars to identical length, I marked one end of all of them so that I could put them in the mill vise the same way round each time, and have one end lined up with the same end of the vise fixed jaw. That way, I was always indexing from the same place that the plans indexed from. Zeroed the handwheels at the end, and proceeded to drill all the holes in all the bars, rather than doing them piecemeal the way I did the first time (had intermixed drilling holes and shaping the bars the first time).

So, end result:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6762.JPG)
Two pairs of crossmember bars with the correct hole spacings - tested them on the model, and all looks good this time!   :cartwheel:   Next time will start shaping down the profiles, which are not critical dimensions like the holes are. Should have them all shaped tomorrow.
 :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 18, 2020, 11:46:03 PM
Oh, and the bar in the back does not appear to have the left hand hole - it is really there, drilled from the underside - the top edge at the end there gets milled off so it does not matter if that one comes through all the way.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on February 18, 2020, 11:48:56 PM
Nice recovery Chris!  :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Kim on February 19, 2020, 02:42:48 AM
While it's never any fun to redo a part, it can feel a lot better to just get started. You've made good progress!  And if the holes are in the right place, that's a bonus!
Kim
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 19, 2020, 03:08:06 AM
Thanks guys! While I could have reworked the first parts and gotten them to work, they would never have been as good as I wanted, and it would have bugged me every time I looked at it. Well worth the day or two to redo them.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 19, 2020, 03:49:20 PM
With the holes for all the rods/bolts done, which are the critical locations, started to assembly-line the shaping of the profiles, starting with chain drilling and milling the long faces:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6763.JPG)
Then hacksawed the excess off and trimmed the tabs on the ends
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6765.JPG)
Next will set up the rotary table to trim off the rounded corners...
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on February 19, 2020, 08:17:44 PM
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 19, 2020, 10:51:22 PM
Okey Dokey! Moving forward again, got the crossmembers Mk II profiled, I am liking the look of the curves better on this set too, a little closer in to the rods.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6766.JPG)
And everything assembled again, the holes and tabs at the ends of the crossmembers are lined up correctly this time.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6768.JPG)
So, back to the crosshead guides next!   :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Firebird on February 19, 2020, 11:02:41 PM
Hi Chris

Loving it  :ThumbsUp: :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn: :popcorn:

Cheers

Rich
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: zeeprogrammer on February 19, 2020, 11:42:44 PM
Worthless without wheels.  ;D
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 20, 2020, 12:23:11 AM
Thanks Rich!




Zee, I thought you were building the rest of the car!  :Lol:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Flyboy Jim on February 20, 2020, 03:31:14 AM
Thanks Rich!




Zee, I thought you were building the rest of the car!  :Lol:

Zee must not of got the memo Chris.  :shrug:

Jim
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: zeeprogrammer on February 20, 2020, 04:31:43 AM
Zee, I thought you were building the rest of the car!  :Lol:

Your confidence in me, while appreciated, is wholly misguided.  ;D

Zee must not of got the memo Chris.  :shrug:

Quite so. It's not surprising given his messaging service (elves).  :ShakeHead:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 20, 2020, 04:03:51 PM
Well, while waiting for Zee to build the rest of the Stanley car   :stickpoke: maybe I'll build one of those Mann trucks!   :Lol:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 20, 2020, 04:12:00 PM
With the crossmembers sorted out, its time to get started on the crosshead guides. They are fairly long (almost 2") with the arc to match the crossheads on the inner surface. That could be done on the mill with a interrupted cut with a boring head, or on the lathe with a complicated jig to hold it, or cutting all four from one piece bored in the center.


I picked the last option - was able to snag a length of cored tube in bearing bronze at a reasonable price, so will use that. It is a 1.25" OD x .5" ID piece, continuous cast as a pipe a little oversize. Worked out perfect, just had to bore out the center slightly to fit the crossheads:
(https://i.postimg.cc/WpnLpsk3/IMG-6770.jpg)
The red lines sketched on show about where the finished pieces will be - going to set up the piece on the rotary table to mill the four flats, then drill the mounting holes and mill down the sides of each. When the side cuts break through to the core hole, it will free the parts and let me saw them off from the bar. Then can do the finish milling in the sides/ends of each. The bar was stress relieved before machining by baking it for an hour at 500F, to prevent the pieces from going banana-shaped as they are cut free (works great on most brass/copper alloys, I checked that it does on this one too).
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Jo on February 20, 2020, 05:50:57 PM
This is the sort of "opportunity" that I see 3D printing of a jig could be useful  :)

Jo
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 20, 2020, 05:57:03 PM
This is the sort of "opportunity" that I see 3D printing of a jig could be useful  :)

Jo
Quite possibly, if you could make one rigid enough to hold the bars during machining. And if I had a 3D printer, which I dont (yet at least!) .
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: ddmckee54 on February 20, 2020, 06:26:40 PM
Well, while waiting for Zee to build the rest of the Stanley car   :stickpoke: maybe I'll build one of those Mann trucks!   :Lol:

At the end of the video the truck just went driving off into the sunset, how did they unload it?  Anybody know if the truck was a dump bed?  If so - how did that work?  Or did they have to shovel the load off by hand?

Don
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Brian Rupnow on February 20, 2020, 06:42:10 PM
It was a dump truck. In the video you can see the bed being tilted.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 20, 2020, 07:28:58 PM
It was a dump truck. In the video you can see the bed being tilted.
Yes - Mann made a couple of different versions with tilted dump beds, I've found their patents on those as well.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 20, 2020, 07:34:02 PM
Got the bronze rod in the 4-jaw moved over to the mill with the rotary table and a tailstock, started squaring off the stock. The four flats are to size, which should leave the parts the right height to bolt to the crossmembers and support the crossheads. The notches in the sides, to take the parts to width, are started, still more passes to go on those.

Here is the setup:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6771.JPG)
and a closer look. Where the 'A' and 'B' are, are the flats that will bolt to the crossmembers.

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6772.JPG)

Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Ye-Ole Steam Dude on February 20, 2020, 08:13:42 PM
Hello Chris,

Still following along on this build, boy that is a complicated design.  :ThumbsUp:

If you build the Dump Truck, then you will also have to build that little Marion Dragline...... :LittleDevil:

Have a great day,
Thomas
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 20, 2020, 08:56:07 PM
Hello Chris,

Still following along on this build, boy that is a complicated design.  :ThumbsUp:

If you build the Dump Truck, then you will also have to build that little Marion Dragline...... :LittleDevil:

Have a great day,
Thomas
And the rock crusher, and the conveyor, ....  Gonna need more shelves!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Ye-Ole Steam Dude on February 20, 2020, 09:52:56 PM
Hello Chris,

Still following along on this build, boy that is a complicated design.  :ThumbsUp:

If you build the Dump Truck, then you will also have to build that little Marion Dragline...... :LittleDevil:

Have a great day,
Thomas
And the rock crusher, and the conveyor, ....  Gonna need more shelves!

Hello again Chris,

OK not a problem, just send me all those items that are in your way and I will be most happy to store them for you  :naughty: :mischief:

Have a great day,
Thomas
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 20, 2020, 10:07:15 PM
Hello Chris,

Still following along on this build, boy that is a complicated design.  :ThumbsUp:

If you build the Dump Truck, then you will also have to build that little Marion Dragline...... :LittleDevil:

Have a great day,
Thomas
And the rock crusher, and the conveyor, ....  Gonna need more shelves!

Hello again Chris,

OK not a problem, just send me all those items that are in your way and I will be most happy to store them for you  :naughty: :mischief:

Have a great day,
Thomas
I walked into that one!   :ROFL:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: gbritnell on February 21, 2020, 11:25:07 AM
Hi Chris,
I follow all your work and have commented on the quality of the work that you do with the machines you have so here's some questions for you.
I know you like working with 303 stainless steel, that's my preferred metal also when working with stainless. What is the largest end mill that you use when cutting it and how deep of a cut can you make?
Do you find the Sherline tools rigid enough for making smooth cuts or do you have to baby them to get what you want?
Do you do most of your cutting conventionally or can you make climb cuts acceptably?
Once again, really impressed with the uniqueness and quality of your work.
gbritnell
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 21, 2020, 02:14:28 PM
Hi George,
I use the 3/8" end mill holders from Sherline, so that is the largest diameter that I normally use - though I do have one holder set up for 1/2" to take larger shank corner rounding bits. I have a range of mills, from 1/8" to 3/8" diameter, use all of them on the 303 stainless.

The depth of cut depends - not sure the proper terms, so I'll call the vertical component deep/shallow, and the horizontal component width. It can take a full width cut as long as it is shallow, and a full depth cut as long as it is not too wide, in the .050 or .100 range at most. More than that and it will chatter. It will do narrow climb cuts fine, and I normally finish off with a climb pass back at same settings as the last normal cut to smooth the finish. When going to a critical dimension, that gets important since repeating the cut at same setting will take off that last thou or two while leaving a nice smooth finish. If I need to do a wider climb cut, I do need to tighten down the gibs and locks to control the backlash on the mill table. I've modified the long axis handwheel to get the backlash on it down to a thou from the normal 5 or so to help with that. The Sherline CAN do big stock, but it doesn't like to do it in one big bite, especially with the taller column and the headstock spacer in since it is not as rigid as a big machine.
Hope thats not too many qualifications and non-specifics, a lot I do by sound and watching the cut to adjust speeds and feed rates on the fly.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Flyboy Jim on February 21, 2020, 03:52:18 PM
Good sequence of operations Chris. Even with your longer mill table it looks like it was pushing the limits for length.

What is the chuck in the tail stock on your mill set up? Looks interesting.

Jim
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 21, 2020, 04:08:27 PM
Good sequence of operations Chris. Even with your longer mill table it looks like it was pushing the limits for length.

What is the chuck in the tail stock on your mill set up? Looks interesting.

Jim
The tailstock on the mill is Sherline's mill tailstock.   ::)   How's that for circular logic?
The part is here on their website:
https://www.sherline.com/product/3702-adjustable-right-angle-tailstock/
It is set up for matching the rotab when its on the vertical adapter, handy to keep long parts supported.


Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Flyboy Jim on February 21, 2020, 04:24:28 PM
Good sequence of operations Chris. Even with your longer mill table it looks like it was pushing the limits for length.

What is the chuck in the tail stock on your mill set up? Looks interesting.

Jim
The tailstock on the mill is Sherline's mill tailstock.   ::)   How's that for circular logic?
The part is here on their website:
https://www.sherline.com/product/3702-adjustable-right-angle-tailstock/
It is set up for matching the rotab when its on the vertical adapter, handy to keep long parts supported.

Yes, I've got that tailstock for my mill as well. In fact, I'm going to be using it in my setup for doing some milling on the Frame for my PMR #5 build. What I was curious about is the chuck you have IN the tail stock................looks interesting and I don't want to miss out on some neat new tool!  :thinking:

Jim
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 21, 2020, 05:15:47 PM
Good sequence of operations Chris. Even with your longer mill table it looks like it was pushing the limits for length.

What is the chuck in the tail stock on your mill set up? Looks interesting.

Jim
The tailstock on the mill is Sherline's mill tailstock.   ::)   How's that for circular logic?
The part is here on their website:
https://www.sherline.com/product/3702-adjustable-right-angle-tailstock/ (https://www.sherline.com/product/3702-adjustable-right-angle-tailstock/)
It is set up for matching the rotab when its on the vertical adapter, handy to keep long parts supported.

Yes, I've got that tailstock for my mill as well. In fact, I'm going to be using it in my setup for doing some milling on the Frame for my PMR #5 build. What I was curious about is the chuck you have IN the tail stock................looks interesting and I don't want to miss out on some neat new tool!  :thinking:

Jim
Oh! Sorry, that is a live center that I picked up a while back. It has a larger spinning cone than the normal one, so it will fit in a larger hole, and the body is a bit heavier duty too. I don't recall where I got it, someplace online. LMS has one like it, but not in the 0MT taper.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: ddmckee54 on February 21, 2020, 05:59:16 PM
Hello Chris,

Still following along on this build, boy that is a complicated design.  :ThumbsUp:

If you build the Dump Truck, then you will also have to build that little Marion Dragline...... :LittleDevil:

Have a great day,
Thomas
And the rock crusher, and the conveyor, ....  Gonna need more shelves!
  Forget about the shelves, you are gonna need more elves, not only that but you'll need to find room for another fridge for their booze.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 21, 2020, 06:51:14 PM
Hello Chris,

Still following along on this build, boy that is a complicated design.  :ThumbsUp:

If you build the Dump Truck, then you will also have to build that little Marion Dragline...... :LittleDevil:

Have a great day,
Thomas
And the rock crusher, and the conveyor, ....  Gonna need more shelves!
  Forget about the shelves, you are gonna need more elves, not only that but you'll need to find room for another fridge for their booze.
Sigh, expanding a business is such a pain in the swarf!   :Lol:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 21, 2020, 06:57:28 PM
More work on the crosshead guide rails today - continued milling in the sides of the blank to form the left/right sides. As it broke through into the core passage, I left metal at the right end to avoid hitting the tailstock support and also to keep the tailstock from pushing the ends apart.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6774.JPG)
Then took off the tailstock, and used a smaller mill to trim off the outer ends
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6775.JPG)
Here are the parts sawn off the bar, ready for trimming to length and profiling in the sides.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6776.JPG)
Here is one held up to the engine to show where they will be going...
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6777.JPG)

Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on February 21, 2020, 07:19:20 PM
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 21, 2020, 09:58:14 PM
Thanks CNR!
Got the shop elves pet goat to nibble away on the crosshead guide rails, taking the sides down to profile a pass at a time, starting too get the right shape. Still need to drill/tap the mounting holes for the bolts from the crossmembers.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6778.JPG)

Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on February 21, 2020, 11:06:09 PM
I'd like to meet that shop goat's dentist - it must have HSS teeth to get through that bronze so nicely!  :Lol:   :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 22, 2020, 08:26:53 PM
I'd like to meet that shop goat's dentist - it must have HSS teeth to get through that bronze so nicely!  :Lol:   :cheers:
He looks cute in his little shop apron and safety glasses though!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 22, 2020, 08:30:40 PM
Finishing up the crosshead guides, drilled/tapped the mounting holes in the ends, and drilled through the oil holes in the middle.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6780.JPG)
Milled a narrow slot in the tops - the original had more shaping around the sides too, too small at this scale to mill in those kinds of cast-in features.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6781.JPG)
The rails installed:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6782.JPG)
And the obligatory family shot:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6783.JPG)
Next up, will work on the slide links for the reversing gear, as well as the control arms for it. Then it will be down to the crankshaft end of things.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: tghs on February 22, 2020, 09:16:42 PM
that was fun to watch..they look great..
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Johnmcc69 on February 22, 2020, 10:13:02 PM
Very nice family shot! Pretty nice display of the relatives in the background as well.  :ThumbsUp:

 & not a single elf on sight.... "Photo bomb" free.

 Terrific work Chris!

 John
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on February 22, 2020, 11:45:59 PM
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 23, 2020, 12:00:42 AM
Thanks again guys. Just spent some time digging through the drawer for my slide link jig, finally found it! The elves were rearranging again...
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Kim on February 23, 2020, 01:18:25 AM
That was an interesting way to get shape your cross-head guides, Chris!
Looking great!

Kim
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: zeeprogrammer on February 23, 2020, 01:51:06 AM
The elves were rearranging again...

See what I mean?  ;D
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 23, 2020, 02:07:19 AM
The elves were rearranging again...

See what I mean?  ;D
Yeah, but I can't complain openly too much, they read this forum too!  :Lol:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 23, 2020, 05:03:45 PM
The goal this morning was to whip up a pair of slide links for the reversing gear. Started by bolting my handy-dandy slide link jig to the rotary table - used this one on several engines, useful both for the slide links and also to drill/trim the eccentric arms using the clamp bar in the middle and a eccentric-plug at the center pivot. So, measured out to where the links would start, clamped on a pair of blanks, and drilled/tapped through them into the jig. Then chain drilled the slot:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6786.JPG)
and milled it out to dimensions
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6788.JPG)
Switched to a larger end mill, and trimmed off the outer arc and the ends:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6790.JPG)
then back to small mill to shape the inner arc and the lugs
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6791.JPG)
A final pass on each piece seperately to take the stock down to the final thickness, and a little cleanup of the corners on the belt sander, and test fit on the tie rods:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6793.JPG)
Last bit on the slide links will be to make the sliding blocks that go in the slots...
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 23, 2020, 06:52:04 PM
Finishing up the slide links with the little blocks that slide inside the slot. Started with some small bronze bar, drilled the center hole on the lathe, then squared it up on the mill with the chuck held in the rotary table:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6794.JPG)
Parted off the blocks:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6795.JPG)
and assembled them into the links:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6796.JPG)
and the links back onto the engine (hard to get an angle with a clear vire of them with all the other rails around the sides) :
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6798.JPG)
All seems to clear and move well, so next will move on to the control levers. There is a pivot bar on one side that gets a crank, with levers down to the lugs on the ends of the slide links - those are the holes visible in the last photo at the closer ends.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on February 23, 2020, 07:41:27 PM
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Kim on February 24, 2020, 01:12:51 AM
Pretty slick, Chris.  :popcorn: :popcorn:

So you just made the followers square?  No arc?  Guess if they are short enough, that won't matter.

Kim
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 24, 2020, 01:38:03 AM
Pretty slick, Chris.  :popcorn: :popcorn:

So you just made the followers square?  No arc?  Guess if they are short enough, that won't matter.

Kim
Yes, at only 0.110" across, on a 3" arc, the side arc would be teensy, and it only slides when moving the control lever. Figured it was fine as a square.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Flyboy Jim on February 24, 2020, 02:49:17 AM
CNC...............you don't need no stinkin CNC!  :ThumbsUp: Well except for the "Count Number Cranks" type of CNC!  :)

Well done.

Jim
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 24, 2020, 03:09:19 AM
CNC...............you don't need no stinkin CNC!  :ThumbsUp: Well except for the "Count Number Cranks" type of CNC!  :)

Well done.

Jim
:cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 24, 2020, 06:34:58 PM
This morning got a start on the forked lever that moves the slide links for the reverse gear. Started with a chunk of stainless flat bar, and drilled the holes to locate things first.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6801.JPG)
Then started milling out the fork and the indented sides...
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6802.JPG)
More on it later - first the flex cable I ordered in to connect up the motors on the excavator arrived, and I'm going to play on that project for a while!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on February 24, 2020, 07:32:03 PM
Looks good Chris! You milled the fork out of that block!  >ahem<  :embarassed:  :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 24, 2020, 08:26:00 PM
Looks good Chris! You milled the fork out of that block!  >ahem<  :embarassed: :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
Careful!   :o


 :Lol:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Craig DeShong on February 24, 2020, 09:32:19 PM
I’ve been working so hard on my own project that I’ve been away from MEM for a few days.  Today I’m getting ‘caught up’ and I half expected you to have this project done by now and halfway through the next project  :embarassed: but alas, I only had six pages to read through to get ‘caught up’.

I’m seeing some great work along with and a few tiny, biddy little parts.  This is a great fascinating  priject Chris, can’t wait to see the conclusion.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 24, 2020, 09:49:40 PM
I’ve been working so hard on my own project that I’ve been away from MEM for a few days.  Today I’m getting ‘caught up’ and I half expected you to have this project done by now and halfway through the next project  :embarassed: but alas, I only had six pages to read through to get ‘caught up’.

I’m seeing some great work along with and a few tiny, biddy little parts.  This is a great fascinating  priject Chris, can’t wait to see the conclusion.
Thanks Craig! It might be running by now if I wasn't working on the submarine and the excavator too...  :embarassed:

Was looking ahead to whats left, and after the control links for the reverse gear, the parts list is not too long - crankshaft, drive gear, eccentrics/followers, crank arms, con rods, and crankshaft bearing blocks (will have some ball bearing races). The crankshaft is fairly straightforward since the crank arms attach to the ends rather than being turned in. Also noted in the plans that the drive gear and the two inner eccentrics are all one piece - slick setup.  Guess I should be doing more research on the Mann steam trucks, it may not be all that far off!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Flyboy Jim on February 25, 2020, 04:08:08 AM
Another great episode of ............"Chris's Carve-a-Part"! :ThumbsUp:

Gotta hop over to that other forum and check out your progress on the excavator.

 :cheers: Jim
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 25, 2020, 03:00:50 PM
More carving on the control yoke, went back to the tried and true method of rounding over sections with a drill bit through the hole to keep the part at the same height when clamping in the vise at different angles:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6809.JPG)
and other end
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6810.JPG)
flattening out the middle and clamp end
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6812.JPG)
trimmed off the clamp end
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6813.JPG)
milling done, ready for hand work
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6814.JPG)
used a jewelers saw to cut a slot through the clamp end, so the screw (which is clearance drilled through to the slot) can compress the end to hold it on the pivot rod, then spent some time with carbide and diamond dental burs in a high speed handpiece to round off the corners and do the final shaping.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6816.JPG)
That all went well, next will make the rods that go inside the yoke and down to the ends of the slide links...



Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on February 25, 2020, 03:42:54 PM
Really nice shaping work on the control yoke Chris.  :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 25, 2020, 07:30:13 PM
Bit more 'carving' this afternoon, turned the pivot bar for the control arm, and had the shop elves pet mini-goat 'Gruffy' nibble out the lever/quadrant for the end:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6817.JPG)

Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 25, 2020, 08:07:04 PM
Silver soldered the lever and quadrant onto the control rod and tube:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6818.JPG)
After they are cleaned up in the pickle solution, will turn off the nut that is holding the lever in place for now. The tube fits into the first post on the crossmember, and the rod slides through the tube, through the yoke arm, and the second post. A nut on the far side of the second post holds the rod in position but lets it rotate.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Don1966 on February 25, 2020, 10:35:36 PM
Still with you Dog and love the results so far. ........ :Love:





 :drinking-41:
Don
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 26, 2020, 03:58:02 PM
Still with you Dog and love the results so far. ........ :Love:





 :drinking-41:
Don
:wine1:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 26, 2020, 04:00:27 PM
Here are the parts from yesterday after cleaning up...
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6819.JPG)
and got the blanks for the links that run from the yoke down to the slide links silver soldered up, ready for shaping. The rods at the ends were drilled first, will be trimmed to final length after cleanup. They were soldered up together to hold things aligned, will saw out between the bars to separate the two links.

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6821.JPG)

Title: Re: Chris's Build of a Stanley 735 Engine
Post by: gary.a.ayres on February 26, 2020, 06:27:05 PM
You certainly know how to carve metal...

 :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: zeeprogrammer on February 26, 2020, 06:56:39 PM
May I join in?  :cheers: :DrinkPint: :drinking-41: :drinking-41:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 26, 2020, 08:07:24 PM
 :drinking-41:
Big lunch out with friends today, only room for one glass...!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 26, 2020, 08:13:55 PM
Got the links cleaned up before lunch, then milled down the sides to size - a section at a time so it was not hanging out of the vise too far and flexing.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6822.JPG)
Got the ends of the tubes trimmed to length, and assembled onto the engine. Tough to get a photo down inside with all those parts crammed into the 5 pound bag:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6828.JPG)
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6826.JPG)

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6823.JPG)
That finishes off the mid-section of the engine.  :whoohoo:   Next can start in on the crankshaft area - need to go back to Fusion and make up the plan sheets for that area.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on February 26, 2020, 08:52:55 PM
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:

Looks like you found the missing links......  :Lol: Great progress Chris. Likely there will be some crankiness in the next step - with any luck!   :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 26, 2020, 09:22:34 PM
:ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:

Looks like you found the missing links......  :Lol: Great progress Chris. Likely there will be some crankiness in the next step - with any luck!   :cheers:
Things will keep turning!  :Lol:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: gbritnell on February 27, 2020, 12:02:21 AM
Outstanding Chris!!!!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 27, 2020, 03:41:28 PM
Outstanding Chris!!!!
Thanks George! Very happy with how it is progressing.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 27, 2020, 03:48:22 PM
Doug (and any others with Stanley engine experience) - I've been getting the model-scale version of the drawings ready, and looking at how the whole crankshaft assembly comes together. Looks like all the parts (eccentrics, crank ends, gear) go onto the shaft, with a common keyway down the length of the shaft. What holds them in place - are the crank ends a press fit on the shaft? For the model, I could do the keyway, and loctite the ends on to keep everything in position. It would be nice to be able to disassamble it if needed, maybe could put a setscrew through the side of the crank web to the shaft rather than press or loctite it all permenantly...  :thinking:

I think I am going to start with the gear and work my way out. In the plans the gear and the first two eccentrics are one piece, which is interesting way to do it. Have nmot decided if I'll do that, or make all the eccentrics separately - if I do them from one bar, all will match diameters and offset well which is important, and the keyway slot would have to align things...
 :thinking:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 27, 2020, 04:23:34 PM
Worked out the answer to part of it - going to make the drive gear and the inside eccentrics as separate pieces. Looked at the stock I have on hand, and how to hold it for cutting the gear and eccentrics, and it will be much simpler this way.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Elam Works on February 27, 2020, 04:33:36 PM
The crankshaft axle is just a shaft with a full length key. Everything just presses on, nothing else to retain it axially. The attached image is from a 1925-26 SV series engine (hence, helical gear), but same design. They did make the center portion of the shaft and the gear about five thou bigger than the diameter than the rest, so that at least one was not pressing the gear and the inboard eccentrics over the entire length.

-Doug
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 27, 2020, 04:38:27 PM
Clever - thanks Doug!!!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 27, 2020, 06:55:17 PM
Okay, going to move ahead with that plan, making the gear and eccentrics separately, key all on the shaft, and setscrew the crank arms on the ends. Starting out with the drive gear in the center, squared up a brass bar a little larger than the gear diameter, and bored the shaft hole.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6831.JPG)
Cut the blank off the bar, leaving a little extra, and turned it around to face the cut side down to thickness:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6832.JPG)
Counterbored both sides to form the recesses. On the original the eccentrics would be sticking out of this surface in a single piece, but for the model they will be separate with the same end dimensions.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6833.JPG)
Moved over to the mill to cut the key slot in the gear...
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6834.JPG)
Then set up an arbor on the lathe to turn the outside down to final diameter. Got lucky and found an arbor with the right diameter on the end already, think its left over from the Marion build, so that saved a little setup time.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6835.JPG)
Then set up on the mill to cut the gear teeth. I am using a Module 1 cutter (closest I have), so added two more teeth to the gear to get the diameter to work out. Slightly different than the original plan, but then Stanley did change things frequently...  O:-)
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6836.JPG)
finished gear:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6837.JPG)
Funny how an operation that used to take me forever to do, with lots of practise on other models, has become so quick and easy!
Here is the gear set about where it will be...
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6838.JPG)

Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on February 27, 2020, 10:10:19 PM
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:

More teeth than the elves' shop goat's dentist!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Don1966 on February 28, 2020, 02:45:11 AM
Between you and George you two cut plenty of gears and good at it...... :Love:



 :cheers:
Don
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: 10KPete on February 28, 2020, 04:06:10 AM
Between you and George you two cut plenty of gears and good at it...... :Love:



 :cheers:
Don

AMEN to that!

Pete
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Zephyrin on February 28, 2020, 07:24:05 AM
Do you can cut the teeth of this wheel in module1 with a single pass with your Sherline?
I am very impressed by this mini machine tool, not to mention the impressive skill of the operator.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on February 28, 2020, 01:47:16 PM
Thanks guys! Its fun to think back to my first clock project and how long it took me to cut the first gears, and how easy it seems now. As I like to say, Perctise Makes Prefect... Something like that!  :Jester:




Zephryin, the brass gears cut through in one pass very easily and cleanly, especially with 360 or 353 brass. I would think steel would take multiple passes. Bevel gears take 3, just due to the shapes in any material. These days I usually use commercial gear cutters, cheap from places like CTC Tools. Clock gears are a different pattern and for those I'll make a single tooth cutter.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 01, 2020, 04:10:43 AM
And no, I have not been ignoring this project the last few days, been working out the eccentric arrangement on the crankshaft, and how I want to make them. More soon!   :atcomputer:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 01, 2020, 04:08:59 PM
Okay, things sorted out on the eccentrics and back at it. Rather than keep re-offsetting the parts in the 4-jaw for each cam, I made one arbor with an offset post on the back and a nub on the front the size of the crankshaft, plus an alignment pin. Chucked that up, and could swap the eccentric blanks in and out and get the same offsets on everything. Here am cuting the first cam on a blank:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6847.JPG)
Then flipped the part around and cut the other side of it.  One side of each part is thicker, to reach past the rim of the gear.

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6849.JPG)
Used the same arbor to cut the slot for the key:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6851.JPG)

Here are the parts held up against the gear:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6850.JPG)
Next I think I'll make the crankshaft itself - its a simple cylinder with a key down its length.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: tghs on March 01, 2020, 06:04:51 PM
the more I watch the more I learn,, perfect timing for me right about now..
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 01, 2020, 06:40:55 PM
the more I watch the more I learn,, perfect timing for me right about now..
So you are building a Stanley engine too?   :)

Glad its of help - I learned (and continue to learn) a lot on this forum too!   :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 01, 2020, 06:53:22 PM
Turned a piece of 1/2" stainless rod down to size for the crankshaft...
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6853.JPG)
and milled a slot for the key to keep the parts aligned...
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6854.JPG)
I do not have any stock the right size for the key itself, to I sawed a wider piece close to size:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6855.JPG)
I'll silver solder that in place, then mill off the top of the key down to fit the slot heights.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: tghs on March 01, 2020, 06:58:13 PM
looking through some of the old collection of steamboats and steam launches was an article were a stanley engine unit was mounted in a hull,, right-angle gearboxes on each shaft end coupled to the prop shafts for twin counter rotating props,, 
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 01, 2020, 06:59:39 PM
looking through some of the old collection of steamboats and steam launches was an article were a stanley engine unit was mounted in a hull,, right-angle gearboxes on each shaft end coupled to the prop shafts for twin counter rotating props,,
Cool!  Never seen a twin-screw steam launch, must have been a quick one.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: sid pileski on March 02, 2020, 01:17:19 AM
Chris- here is a new project that I got from a friend of mine.
Wants me to make a nice stand for it. He thinks it is from a Locomobile?
What do you all think?
I find the ball bearing in the cross head interesting. Never seen that before.

Sid

(https://i.imgur.com/KaTJMSk.jpg)
(https://i.imgur.com/6BIEy2b.jpg)
(https://i.imgur.com/ZdWHfBi.jpg)

Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 02, 2020, 01:31:14 AM
That's very interesting! Nice engine, that ball setup is quite different. I don't know what brand it is, perhaps one of the others here does. Its in great condition.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: sid pileski on March 02, 2020, 01:56:49 AM
Agreed.
Someone did a nice job cleaning it up. It runs fine.
I'm a little puzzled with the size of the sprocket on it. Seems like every engine I see on line has a much smaller sprocket.

Sid
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 02, 2020, 02:30:38 PM
Got the key soldered into the shaft yesterday, this morning milled the top edge down to size and got the gear/eccentric fitted on (filed the rounded ends of the slots square).
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6856.JPG)
Nice tight fits, good to move on to the crank ends which also hold the bearings. These center parts will get a little blue loctite if needed to hold them from sliding though the crank ends may keep them in place. Here are the parts set in place in the engine...
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6857.JPG)
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Don1966 on March 02, 2020, 02:33:19 PM
Looks great Chris you moving along at a fast rate..... :ThumbsUp:


Don
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 02, 2020, 11:03:45 PM
Thanks Don!   :cheers:

Though it will slow down for a couple days, turns out that the ball bearings that I had ordered a while back wont all work out - the ones for the crankshaft are too small in ID, and would have made the end of the crank that fits over the shaft be too thin for strength. So, just ordered a different size, will have that on Wednesday. Double-checked the ones for the big ends on the con-rods, they are fine. The original also had ball bearings in the eccentric followers, I wont be putting them there, to small at this scale. This is the first time I've used them in a model, will be interesting to see the difference with bronze bearings.


Gee, too bad I don't have another project to work on in the meantime. Like an excavator. Wait - I DO!   8)
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Steamer5 on March 03, 2020, 07:58:51 AM
Geez Chris, I spend a day driving home from holiday, & you add another page...ah well makes great catchup reading, nice work!

Sid,
 Not 100% sure but it looks similar to the White Steam engine dad is working on. The valve chest being square & the  ball bearing piston cross head guide are the same. It also looks like the bearing on the crank is the same, dads is adjustable we’re the load on the balls can be tightened up. I agree the gear looks too big, dads has a about 12 or 15 tooth gear...sorry hard to tell from the photo, therefore a much heavier chain.
Still a nice looking engine. Are there any plans to have it running?

Cheers Kerrin
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: sid pileski on March 03, 2020, 03:41:13 PM
This engine does have adjustable races and balls in the rods.
It does run now on air, pretty well. The reversing gear all works as it should.
I wonder if someone, as they were doing the rebuild of this, replaced the sprocket with what they had?

Do you have any info on White steam cars??

Also, for some reason, someone hand stamped the word "Creators" on some of the parts. No idea why.

Sid
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 04, 2020, 11:10:26 PM
Okay, the ball bearings arrived today so back working on the Stanley project.  :)

Started by turning the outside of a length of 303 bar to fit the ID of the bearings, and bored the inside to match the OD of the crankshaft:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6867.JPG)
and parted off two sections, one for each crank
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6868.JPG)
Also cut a couple of blanks for the crank plates (these are single-sided cranks on the ends of the shaft) and bored a hole for the tubes just made:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6869.JPG)
The parts so far - ready to shape the outside profiles of the plates and drill the crank pin holes. Then will silver solder the tubes to the plates, and then mill in the slot for the key on the shaft. Since the end mill I am using for that will not reach all the way through the tubes (dont have a broaching set or arbor press yet so taking the simple route) I milled back the outer ends of the keys a bit.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6870.JPG)

Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on March 05, 2020, 12:06:30 AM
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 05, 2020, 04:01:11 PM
:ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
:cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 05, 2020, 04:08:47 PM
Got the crank plates shaped, started with the large arc on the end, which has its pivot point up at the crank pin:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6871.JPG)
Then milled the small end and sides down...
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6873.JPG)
A quick test fit on the shaft - it only goes partway on at the moment since the key slot wont be cut till after silver soldering the parts.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6876.JPG)
Also made up the crank pins - held on with a screw from the other side at the moment, the screw head will be milled off after soldering. The pins are stepped to keep the bearings just off the plate, and there is a 1/4-40 nut on the end to hold the bearings on.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6877.JPG)
Next up is to silver solder the plates to the tubes and posts - think I will put small pins in to hold the tubes in position since they need to end flush with the crank-pin side of the plate.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Admiral_dk on March 05, 2020, 04:47:41 PM
Sometimes it's a good idea to ask about those things that do not make sense, and other times it makes sense to wait and see ..... This was one off those, where waiting payed off - I wondered about what looked a bit like bearing support in the previous post, had the bearings mounted in such a way as not to do anything usefull ....     and now I see that they are the crankwebs  :facepalm2:  :embarassed:

Still enjoying your great build    :cheers:    :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 05, 2020, 05:20:00 PM
Sometimes it's a good idea to ask about those things that do not make sense, and other times it makes sense to wait and see ..... This was one off those, where waiting payed off - I wondered about what looked a bit like bearing support in the previous post, had the bearings mounted in such a way as not to do anything usefull ....     and now I see that they are the crankwebs  :facepalm2: :embarassed:

Still enjoying your great build    :cheers:    :popcorn:
Ah, see what you mean, that other picture does look like a support. I've got the advantage of having the plans in front of me!


Just soldered the parts, letting them cool before they take a pickle swim. Once they are cleaned up and the keyway cut, the bearing blocks are next.  Feel free to ask anytime!


 :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 05, 2020, 06:49:26 PM
Those darn shop elves, always impatient. I TOLD them I was setting up the big torch to silver solder the cranks, but NO, they wouldn't listen!  Now I need to find that little first aid kit and try and open those stupid teensy bandages...   :facepalm:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6878.JPG)
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Elam Works on March 05, 2020, 07:50:14 PM
Fireproof elves? Are you sure they are not really imps?
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 05, 2020, 08:11:41 PM
Fireproof elves? Are you sure they are not really imps?
That was the picture just before lighting the torch. Now he looks like Wile E Coyote after the dynamite he was holding went off...
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Elam Works on March 05, 2020, 08:13:35 PM
I thought that torch looked like ACME brand.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Firebird on March 05, 2020, 08:26:22 PM
Hi Chris

Is it just me or have your photos disappeared??

Cheers

Rich
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: MJM460 on March 05, 2020, 08:59:24 PM
Hi Rich, the photos are still there for me.

Still following along Chris, there’s a lot packed into a small space with that engine.  Awe inspiring work.

MJM460

Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 05, 2020, 09:02:02 PM
Hi Chris

Is it just me or have your photos disappeared??

Cheers

Rich
Just you, I still see them all. I am using Coppermine for this thread, maybe the server hiccupped but its there now.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 06, 2020, 12:19:58 AM
Forgot to post this one earlier, of the crank webs soldered up and cleaned up:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6879.JPG)

As mentioned earlier, they will sit farther in on the crankshaft once the keyways are cut in. I think I'll also put a set screw inboard of the bearing on each to hold it in place on the shaft, but still allow me to take all the parts off if needed later on. I also need to remember to nickel plate the gear, which I think would have been steel on the original.
Oh, and ignore the angle that the cranks are at in relation to the eccentrics, the cranks were just slid on for the picture, they will be properly aligned once the keyways are cut. I hope!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Don1966 on March 06, 2020, 12:32:48 AM
Dog that is some amazing results......did .......I say .......I.......like........ :Love:




 :cheers:
Don
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on March 06, 2020, 12:33:41 AM
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:

See, there WAS some cranky activity in your shop today! Looks great.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 06, 2020, 06:49:39 PM
Thanks guys! More cranking along today - back on the mill to cut the keyway in the crank web tubes, and take off the screw heads that held the crank pins on for silver soldering...
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6881.JPG)
Test fit, all looks good!   :cartwheel:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6884.JPG)

Right now have the gear in the solution getting nickel plated, so it looks like the steel original ones. Next parts will be the bearing blocks that clamp around the large ball bearing races and hold the crankshaft to the four frame rods on the engine...
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 06, 2020, 07:37:37 PM
After a swim in the nickel plating special tank (an old plastic kitchen container with a snap lid) the gear is looking more like steel. Here it is next to a chunk of brass for color comparison:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6885.JPG)

Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Johnmcc69 on March 06, 2020, 08:43:11 PM
Real nice work Chris!
 :ThumbsUp:

 John
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Flyboy Jim on March 07, 2020, 02:39:44 AM
Well geeeez Chris! You knock all this work out and here I am trying to tap some 2-56 threads in the cast iron frame of my PMR #5 build. Although I must say it's not for the "faint of heart"!  :insane:

Jim
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 07, 2020, 02:55:29 AM
Well geeeez Chris! You knock all this work out and here I am trying to tap some 2-56 threads in the cast iron frame of my PMR #5 build. Although I must say it's not for the "faint of heart"!  :insane:

Jim
What size drill are you using? It does vary by the material. Go with a nbr 48 rather than the usual 50, plus oil. Also, the tap an old used one? They do go dull.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Flyboy Jim on March 07, 2020, 03:08:50 AM
Well geeeez Chris! You knock all this work out and here I am trying to tap some 2-56 threads in the cast iron frame of my PMR #5 build. Although I must say it's not for the "faint of heart"!  :insane:

Jim
What size drill are you using? It does vary by the material. Go with a nbr 48 rather than the usual 50, plus oil. Also, the tap an old used one? They do go dull.

Thanks for the info Chris. I'm up to a #47  and it's still making me nervous. The taper tap goes in fine until I get to the full size part of it and then it starts to bind up. I don't think the tap is dull, but might order a new one. I've also heard stories about cast iron getting really hard. Worse case (no breaking a tap would be worse case) I can thru drill and use bolts and nuts for these parts.

Jim
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 07, 2020, 03:39:19 AM
Sounds like a dull tap. It sneaks up on you, makes a huge difference. I would try a new one. With the volume I do, I buy taps several at a time, they are relatively cheap, worth it in lost time digging out a broken one.
One thing I would try is drill a nbr 50 hole in a offcut of 360 brass and try tapping it. It should breeze right in with good fine chips. If not, its dull. If its its , could be a hard spot in the iron.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Flyboy Jim on March 07, 2020, 03:52:19 AM
Sounds like a dull tap. It sneaks up on you, makes a huge difference. I would try a new one. With the volume I do, I buy taps several at a time, they are relatively cheap, worth it in lost time digging out a broken one.
One thing I would try is drill a nbr 50 hole in a offcut of 360 brass and try tapping it. It should breeze right in with good fine chips. If not, its dull. If its its , could be a hard spot in the iron.

 :ThumbsUp: Will do
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: mklotz on March 07, 2020, 03:41:09 PM

...I'm up to a #47  and it's still making me nervous. The taper tap goes in fine until I get to the full size part of it and then it starts to bind up. I don't think the tap is dull, but might order a new one. I've also heard stories about cast iron getting really hard. Worse case (no breaking a tap would be worse case) I can thru drill and use bolts and nuts for these parts.

Actually, my program calls for 70% DOT in cast iron and a #50 drill (0.070) is the closest to the calculated 0.0698 needed for that.  You can probably safely go as low as 55% DOT and use a #49.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: zeeprogrammer on March 07, 2020, 06:09:21 PM
Gee whiz. It's hard enough keeping up with everyone when I'm out for a day.
I'm home now after a six day trip.

Lots of fantastic work.

How does that nickel plating hold up?
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 07, 2020, 07:17:12 PM
Gee whiz. It's hard enough keeping up with everyone when I'm out for a day.
I'm home now after a six day trip.

Lots of fantastic work.

How does that nickel plating hold up?


Welcome back!


The nickel plating seems to be very durable, does not rub or scrape off like paint would, and is thinner. Simple to do, with just vinegar, pinch of salt, nickel rod or plate, and a variable power supply. No nasty acids. I posted a link to the instructions I followed back on my marion valve engine build, think it was on that one.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 07, 2020, 09:19:24 PM
And here is the story of a couple of bearing blocks. They started out life as a pair of brass flat bars just wide enough to cut two blocks out of side by side. After stress relieving in the oven (500F for an hour and cooled down) they were sawn in half on the bandsaw and drilled to fit over the frame rods.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6887.JPG)
They were set up with the original outside surfaces facing down, all in a row, and the ends taken down to where the bolts will rest against, then the ends trimmed to length, and the sawn surfaces skimmed flat. The sketched on red line shows where the outer ends will be milled to an arc later on.

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6888.JPG)
The pairs were stamped with numbers to help keep them in matched pairs, bolted together, and centered up on the lathe faceplate a set at a time for boring out the center hole. This hole was taken down to match the diameter of the inner edge of the bearing race rim.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6889.JPG)
Then used a triangular boring bit to turn the center out to fit the outside diamter of the bearing races. The races are held from sliding in/out on the crankshaft by thin rings either side, and this center groove will keep the entire assembly from shifting side to side. The rightmost edge of the boring tool angled that side of the groove, but thats all right since the bearing only fits at the bottom of the groove.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6890.JPG)
Both pairs done, and test assembled it all on the engine. Right away it became apparent why they put the nuts either side of the blocks - at first the crankshaft was at a slight angle, and the webs rubbed on the frame, but a couple turns on one side and it straightened it right up.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6891.JPG)
It all spins very easily, more so than fixed bronze bearings would have with a ton less work. The blocks on one side were just a tad loose on the bearing, a couple strokes with a file on the mating flat edge and they drew up and held it better. So, will move on with the rest of the shaping - milling the arc in the outer long edges, and rounding the ends around the frame rods.
In the meantime, a family shot (minus the nuts that go on the frame rods below the bearing blocks, too much of a pain to run them on/off just for a photo - we can photoshop those in like a missing family member!)
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6893.JPG)
After the bearing blocks are done, the list of remaining parts is pretty small (though they are complicated parts to make and will take a little while) - four eccentric followers/arms, two connecting rods, some pivot pins, gaskets, and some sort of stand to hold it for running. Then, lots of timing/adjusting is sure to follow!
 :cheers:


Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on March 08, 2020, 12:39:42 AM
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Brian Rupnow on March 08, 2020, 12:43:24 AM
As usual Chris, I am amazed and impressed at the quality and quantity of work you are putting out. Great stuff, I check you build every day.---Brian
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Kim on March 08, 2020, 01:21:50 AM
Mighty nice looking family portrait there Chris!  Even if it is missing a few nuts, and let's face it, what family isn't? :Lol:

Kim
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 08, 2020, 02:06:13 AM
Thanks all, finished off the blocks with some shaping on the corners and a a dip in the nickel plating. Pics tomorrow. Next will be to work out how to make the eccentric followers.


 :cheers: :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: zeeprogrammer on March 08, 2020, 03:57:47 AM
Really shaping up to be installed in a chassis!  :naughty:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 08, 2020, 03:20:38 PM
While waiting for the chassis that Zee is building me to arrive,   :stickpoke: ,  getting caught up with the pictures from yesterday, when I milled the arcs in the bearing blocks:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6894.JPG)
test fit:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6895.JPG)
and got them nickel plated. The last couple parts have been going faster and getting into the corners better, I moved the nickel donor rod in closer to the part and ran the voltage up from 6 to 7 - puts more metal down faster and seems to wrap around the corners better.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6896.JPG)
This morning laid out the cuts on the bar stock for the eccentric followers and arms, and sent an ElfPrentice up to the bandsaw to cut them out. He came back with four blanks for the followers rather than four pairs, so had to send him back again.   :embarassed:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6897.JPG)
Today I'll start roughing out the shapes and drilling the holes in the blocks to get them ready to bore out.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: zeeprogrammer on March 08, 2020, 05:29:11 PM
While waiting for the chassis that Zee is building me to arrive,...

I would consider it but I've yet to find any dependable elves. I see you have similar issues.  :Lol:
What I really need are garden elves. That might keep T off my back to help. But again, finding good help is impossible.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on March 08, 2020, 05:45:18 PM
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:

      BAD PUN ALERT _        WHOOT WHOOT WHOOT!             BAD PUN ALERT _      WHOOT    WHOOT   WHOOT!       BAD PUN ALERT _          WHOOT WHOOT WHOOT !      BAD PUN ALERT _
        WHOOT WHOOT WHOOT !    BAD PUN ALERT _          WHOOT WHOOT WHOOT! 


The elf that helped with the arc milling, her name wasn't Jean, was it?     :Lol:   (sorry)
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 08, 2020, 06:08:23 PM
:ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:

      BAD PUN ALERT _        WHOOT WHOOT WHOOT!             BAD PUN ALERT _      WHOOT    WHOOT   WHOOT!       BAD PUN ALERT _          WHOOT WHOOT WHOOT !      BAD PUN ALERT _
        WHOOT WHOOT WHOOT !    BAD PUN ALERT _          WHOOT WHOOT WHOOT! 


The elf that helped with the arc milling, her name wasn't Jean, was it?     :Lol:   (sorry)
"  (sorry)"  - Nah, I dont believe that part!   :Lol:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 08, 2020, 06:11:30 PM
While waiting for the chassis that Zee is building me to arrive,...

I would consider it but I've yet to find any dependable elves. I see you have similar issues.  :Lol:
What I really need are garden elves. That might keep T off my back to help. But again, finding good help is impossible.
I think they call thaat breed of elf a 'Garden Gnome"!  They are usually much nicer that the Shop Gnome variety, and are available for hire at all garden stores.

(https://images-na.ssl-images-amazon.com/images/I/51XDJ4ulW9L._AC_SL1000_.jpg)
Hmmm.... All the trouble you are having Zee, your shop 'elves' dont look like this guy, do they?
(https://cdn.shopify.com/s/files/1/1425/8892/products/TTSRLWB103--Gremlins-Evil-Gremlin-Puppet-Prop.jpg?v=1571267662)

Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 08, 2020, 06:18:31 PM
As with the bearing blocks, the eccentric followers were trimmed and had the sides notched in as a group, used a couple of parallel clamps on the ends to swap them end for end in the vise.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6898.JPG)
The ends were drilled for the bolts, half clearance drilled and half tap size drilled. I've got one tapped (2-56) so far, will do more after lunch.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6899.JPG)
Also the thickness needed was between stock flat bar sizes, so they will be trimmed a little thinner on the lathe...
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6900.JPG)

Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 08, 2020, 09:02:32 PM
Got all the holes tapped and followers trimmed to thickness. Now starting in on boring out the center holes. These have a rib in the center that rides in a groove in the eccentric. The hole was bored out to the diameter for the rib, then the outside edge taken out to the OD of the eccentric. The second side will need to be done on an expanding arbor once all the parts are to the same stage....
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6901.JPG)

Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 08, 2020, 11:32:10 PM
Turns out the part held just fine on the outside edges of the 3-jaw chuck jaws, so used that to hold them to cut the second side of the rib on the followers:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6903.JPG)
Here is the rib left in the center:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6904.JPG)
The parts re-assembled - had to trim the width of the gear just a little, it was just over dimension from the plans, and just rubbed on the followers. It is back in getting re-plated to cover the brass that exposed.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6907.JPG)
All the parts turn smoothly, so next time will round the bottom edges of the followers, and shape the top edges to take the arms that go up to the slide link.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Flyboy Jim on March 09, 2020, 03:25:27 AM

I would consider it but I've yet to find any dependable elves. I see you have similar issues.  :Lol:
What I really need are garden elves. That might keep T off my back to help. But again, finding good help is impossible.

I think they call thaat breed of elf a 'Garden Gnome"!  They are usually much nicer that the Shop Gnome variety, and are available for hire at all garden stores.

I hired three of them that were supposed to be really helpful. Their names are Sledge, ZZZZZZZee, and Larry. They're nice enough all right, but they don't do squat around here!  >:( Something about staying out in the garden shed until the weather warms up.I think that's just an excuse to be lazy!  :shrug:

Jim

(https://listerengine.com/coppermine/albums/userpics/10010/P1020435~0.JPG)
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 09, 2020, 03:30:02 AM
Jim, looks like they are acting out my idea of a good summer day. Make something in the morning, nap in the afternoon, and go out in the evening!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Flyboy Jim on March 09, 2020, 04:07:02 AM
Jim, looks like they are acting out my idea of a good summer day. Make something in the morning, nap in the afternoon, and go out in the evening!

 :ThumbsUp: :ThumbsUp: :ThumbsUp:  :wine1:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: JC54 on March 09, 2020, 07:38:25 PM
It looks like you will be waiting a long time for the chassis Chris, why not put the engine in a "Mann" steam wagon?? :shrug: :DrinkPint: :old: John
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Craig DeShong on March 09, 2020, 07:50:28 PM
Thoroughly enjoying this build Chris.   :popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 09, 2020, 07:58:18 PM
It looks like you will be waiting a long time for the chassis Chris, why not put the engine in a "Mann" steam wagon?? :shrug: :DrinkPint: :old: John
Same as with the car, it would be huge! And need a big boiler too, twin double acting cylinders, 1" bore, 1.2" stroke, engine is 11" long.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Craig DeShong on March 09, 2020, 08:00:19 PM
It looks like you will be waiting a long time for the chassis Chris, why not put the engine in a "Mann" steam wagon?? :shrug: :DrinkPint: :old: John
Same as with the car, it would be huge! And need a big boiler too, twin double acting cylinders, 1" bore, 1.2" stroke, engine is 11" long.

My live steam locomotive boiler would supply it nicely  ^-^
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 09, 2020, 08:05:13 PM
It looks like you will be waiting a long time for the chassis Chris, why not put the engine in a "Mann" steam wagon?? :shrug: :DrinkPint: :old: John
Same as with the car, it would be huge! And need a big boiler too, twin double acting cylinders, 1" bore, 1.2" stroke, engine is 11" long.

My live steam locomotive boiler would supply it nicely  ^-^
Well, steam it up and roll it on over!!   :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 09, 2020, 08:35:39 PM
This morning started in on rounding over the bottom ends of the followers:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6908.JPG)
Reused the hold-down cap from the bearing blocks, just needed to trim the step on the bottom a little. Here is what they look like so far:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6909.JPG)
Would have started on the top edges with the arm attachment point, but it actually got up in the upper 60s F today, and in upstate New York State, in early March, that is rare. So, spent the rest of the day outside!   ^-^
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: zeeprogrammer on March 09, 2020, 09:40:00 PM
It looks like you will be waiting a long time for the chassis Chris, ...

As in 'forever' if he's waiting on me. C'mon, let's be real here. Chris is a 100 times faster than me. It would take me 5 years (at least) and Chris would be done in a week.
Check my math. If it's wrong just up that 100 times factor. Probably something better than 250 times faster. And I'm fooling myself to think I could do it in 5 years.

BTW I trust Garden Gnomes even less than elves. They carry bigger weapons. Perhaps that's why Mom has three of them outside her apartment door. I worry that my next visit will find them having reproduced.

Imps! Imps are more my style.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 09, 2020, 10:33:53 PM
 :lolb: :ROFL: :Lol:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 09, 2020, 10:38:58 PM
After the sun got low and behind a cloud bank, came in from the porch and wandered into the shop. Drilled the tops of the followers for the arms
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6910.JPG)
and used a small end mill to clean out the slots
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6911.JPG)
After the next step, the arms will be silver soldered into the slots. So, on to the next step! Milling the top arcs into the followers next to the slots:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6912.JPG)
Parts ready for soldering on the arms...
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6913.JPG)

Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 10, 2020, 07:51:11 PM
Today got the follower arms tapered on the mill,
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6914.JPG)
and silver soldered to the top halves
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6916.JPG)
and cleaned up
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6917.JPG)
Next need to bend two of them, so the ends of the arms come out even with the two straight ones at the slide link end. Then will make and attach the clevis ends.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 10, 2020, 10:56:15 PM
And one last bit for the day, cut similar slots in the ends of some 1/4 square stock, and silver soldered them to the ends of the arms after trimming all the arms to the same length so that the pivot holes will be in about the right spot in the square blocks. I like to get all the parts attached to each other before drilling that final hole, so that I can ensure all will be the same length. Otherwise, any movement during soldering and the forward/reverse directions wont match throws on the valve. Oh, and I did the bending of two of the arms before this step too.

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6918.JPG)
After pickling/cleaning, the blocks can be further shaped and have the holes/slots put into them. The blocks are a bit oversized from the final shapes.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 11, 2020, 03:21:42 PM
Got the clevis ends of the eccentric followers chain drilled

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6919.JPG)
and milled the slots
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6920.JPG)
then trimmed the width of the ends down
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6921.JPG)
before some shaping on the belt sander
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6922.JPG)
About ready to set up the jig to drill the pivot holes in the clevis ends - going to use a jig to ensure the distances between holes at the ends is uniform, otherwise when shifted to other direction the valves dont act the same.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Kim on March 11, 2020, 04:52:09 PM
Mighty nice looking set of followers there Chris!  :popcorn: :popcorn:

Kim
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 11, 2020, 07:13:30 PM
Thanks Kim!

After lunch out with friends, went in and set up the drilling jig for the followers. Got a couple that I've made over the years, had to use the longer one on this set. Re-used the stepped disc to hold the big end, and milled a shallow slot for the other end to rest in and hold the arm level. Measured out for the length from the center of the big end, locked everything down, and started drilling the parts.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6923.JPG)
The curved arms needed some support, so put one of the straight ones underneath the big end as a spacer.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6925.JPG)
Then cut off the excess at the tip of the clevises, and spent some time on the belt sander to shape those ends. Here is everything assembled onto the crankshaft:

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6927.JPG)

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6928.JPG)
It all makes quite a mass when inserted back into the engine again. All moves freely, and no interferences, so looks like I can connect up things at the slide link now, and get the valve throws adjusted. Then I'll measure the lengths needed on the con-rods, just in case there is any minor adjustments needed from the plan lengths - lots of parts to build up tolerances from in between!
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6929.JPG)

But, thats a great place to break for the day, can tell I'm a little tired, been a busy couple of days, best to go do something else for the rest of the day.   :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Johnmcc69 on March 11, 2020, 08:01:04 PM
 :ThumbsUp: Great looking crank assembly Chris!

 How did you bend the eccentric arms? A little heat? Big hammer?

 John
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 11, 2020, 08:06:18 PM
:ThumbsUp: Great looking crank assembly Chris!

 How did you bend the eccentric arms? A little heat? Big hammer?

 John
Hi John!  I put the tip in the vise, and heated the middle with a torch, and put the bends in with pliers. The arms are 3/32" thick tool steel, they are plenty rigid when cool but bend easy when hot. I didn't want to risk work hardening them with a cold bend, since they took a little back and forth adjusting to get the distance right and the ends parallel again.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Firebird on March 11, 2020, 08:10:02 PM
Hi

I still couldn't see the photos so I have switched to another browser which has cured the problem.

I have been using Maxthon as my browser for years but it seems they are no longer being supported.

I have downloaded and installed the latest version of Edge and all is back to normal.

Cheers

Rich
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 11, 2020, 08:14:33 PM
Hi

I still couldn't see the photos so I have switched to another browser which has cured the problem.

I have been using Maxthon as my browser for years but it seems they are no longer being supported.

I have downloaded and installed the latest version of Edge and all is back to normal.

Cheers

Rich
Excellent. I had not heard of that browser before.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 12, 2020, 04:47:32 PM
Today was a assembly day - got the eccentric arms attached to the slide links, and also some disassembly, took the cylinder block off to get the gaskets done. The gaskets all went well, added one under the valve rod glands and another under the panel that covers the steam passages. Also put thread sealant on the top/bottom caps on the cylinders, the steam inlet pipe, and the end plug.
The slide link arms, which move the slide links back and forth for forward/reverse, did show an interference issue when cranking over the engine. I took those arms off and thinned them down more to clear the other components better. Here are the arms I am talking about, pointed at by the red arrow:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6930.JPG)
Not a lot of room in there! This afternoon I should be able to get the cylinder block back on and the valve/piston rods connected up again, then I can get the valves visually timed by looking through the steam passages with the side cover panel removed...
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: zeeprogrammer on March 12, 2020, 05:11:09 PM
Getting close!  :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Elam Works on March 12, 2020, 05:28:40 PM
Quote from: crueby
Not a lot of room in there!

What? plenty of room! You must have used the wrong scale...

-Doug

Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 12, 2020, 05:31:15 PM
Quote from: crueby
Not a lot of room in there!

What? plenty of room! You must have used the wrong scale...

-Doug
Gotta keep the elves out of there, they'd be diced!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 12, 2020, 05:31:55 PM
Getting close!  :popcorn:
Down to con rods and a stand!   :cartwheel:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Elam Works on March 12, 2020, 06:03:45 PM
Quote
Gotta keep the elves out of there, they'd be diced!

Oh nooooooooooo, Mr. Bill!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 12, 2020, 06:59:28 PM
All the parts reassembled, time for some family photos. The valve travels are centered, and some grease on the o-rings, gaskets are all in. All thats missing are the connecting rods:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6931.JPG)
That first one looks a little like a two-nosed steampunk Moai statue!
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6933.JPG)
Have to make a test stand for it, think I'll try it out with a thick board at the bottom for the frame rods to bolt to, see how rigid it is and if it needs the angled supports that come out of the cylinder block. If it is not rigid enough, will work out a horizontal mount that clamps on the frame rods top and bottom.

I measured for the con-rod lengths, now just have to decide how to piece them up. The originals are all one cast piece. They go from the crankshaft up to the middle, where it steps back to go up just the back side of the crosshead. A second short piece bolts to that step, and comes around the near side of the crosshead. I believe they made it two pieces since they used a conical bearing at the crosshead, so it needed to be able to be assembled into the crosshead. For the model, the arms are fairly thin, and I am using a straight bearing, so am considering making the con-rod in one piece with a dummy bolt in the center, and a shoulder bolt at the crosshead through a bronze straight tube. Still need to go through my bar stock and see if I can make it from one piece, or if it needs to be pieced up/silver soldered together.
Good place to break for the day, and sit back and admire the engine so far!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 12, 2020, 07:06:09 PM
hmmmm.....
(https://i.postimg.cc/8zB5snBV/Image4.jpg)
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 12, 2020, 08:47:51 PM
Been playing around in Fusion, and have worked out how to make the con rods from bar stock. I am keeping the bolt-on forward arm that the original has. Here is a screen grab of what I am going to do. The different colors show the different bits that will make up the final assembly:
(http://listerengine.com/coppermine/albums/userpics/10043/Con_Rod1.jpg)
The teal is the big end, that clamps onto the ball bearings on the crank pin, will turn/mill that from a piece cut off the end of some round bar stainless that I have. The light green is a length of flat stainless that will have a tenon turned on the end and will be silver soldered to the base ring. The orange is another piece of flat bar to form the fixed inner arm, also silver soldered in place. The blue is cut from flat bar, and will bolt in place. The red is the bronze bearing inside the crosshead, that whole end will be held with a shoulder bolt.

This shows the green middle bar removed, to show the hole/flat cut onto the ring to take the round tenon turned on the end of the green bar, locating it for silver soldering.
(http://listerengine.com/coppermine/albums/userpics/10043/Con_Rod2.jpg)
And this shows the blue bar removed, showing the keyway milled into the end of the green bar to help keep the outer bar aligned. The outer bar will have a matching key cut in and soldered on.
(http://listerengine.com/coppermine/albums/userpics/10043/Con_Rod3.jpg)
Should work out, and uses bar stock I have on the shelf. It could all be cut from one big piece, but that would waste a lot of material.
 :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 13, 2020, 06:45:37 PM
Started in making the parts for the con-rods today, starting with the big end ring. Started with some slices off a 1.25" stainless bar, offset in the 4-jaw and drilled/bored out for the bearings and the bearing flanges each side:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6936.JPG)
Test fit on the bearings on the crank pins:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6937.JPG)
Nice snug fit on the bearings (the slot/screw in the rings will allow them to clamp in place). Next was to shape the profile in, with the parts clamped to the center of the rotary table:

(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6939.JPG)
Parts so far, ready to cut the slots, add the bolt holes, and drill the side holes for the arms.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6940.JPG)
Now, some may wonder why I started these bits from round bar rather than flat bar - answer is that I have lots of the round bar, not as much of the flat stock the right thickness.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on March 13, 2020, 07:32:08 PM
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:

Liked the Moai / Stanley-Henge side by side photos!   :Lol:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 13, 2020, 11:23:10 PM
:ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:

Liked the Moai / Stanley-Henge side by side photos!   :Lol:
Stanley-Henge - good one!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 13, 2020, 11:24:42 PM
More shaping on the ring ends, and started shaping the arms too.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6941.JPG)
The arms on the real ones were rounded on the sides, will do that on the sander after assembly of the parts.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: zeeprogrammer on March 14, 2020, 12:05:58 AM
Is there an emoticon for "sitting on the edge of one's seat"?

Don't even try to picture me.  :Lol:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 14, 2020, 12:42:00 AM
Is there an emoticon for "sitting on the edge of one's seat"?

Don't even try to picture me.  :Lol:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Craig DeShong on March 14, 2020, 12:46:31 PM
hmmmm.....
(https://i.postimg.cc/8zB5snBV/Image4.jpg)

Absolutely UCANNY resemblance :lolb:

 :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on March 14, 2020, 03:43:59 PM
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:

That con rod end fab looks great! I think you may have been listening to an old Steely Dan album when you designed the Peg and slot joint.   :Lol:    :shrug:

It should be very strong when soldered!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 14, 2020, 07:51:22 PM
:ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:

That con rod end fab looks great! I think you may have been listening to an old Steely Dan album when you designed the Peg and slot joint.   :Lol:    :shrug:

It should be very strong when soldered!
Didn't make the connection at the time, but it sorta works!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 14, 2020, 07:53:19 PM
More done on the con-rod parts, got the slots for the keys cut in the removeable arm and the matching ones in the lower arms.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6942.JPG)
Just got the parts soldered up, and are cooling. Soldered the ring to the lower arm, and the lower arm to the outer back arm (which was held on by a temporary screw). Also soldered the keys into the outer front (removeable) arms.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 14, 2020, 11:16:16 PM
silver soldered parts - cleaned up and drilled back through the holes to clear them. Still a couple of solder blobs to file off where it ran down the sides.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6944.JPG)
Next will be to continue shaping the arms and ring, getting the pivot holes drilled in the ends of the arms and rounding the edges like the original castings were. While measuring for the distance between holes on the con rods (min/max distances from the crank pins to the crosshead holes on the engine), was one good sign - depending where the valves were, catching them between the inlet/exhaust positions, there was compression on the pistons making them spring back. Moving the valves slightly and it flowed free - so that means the piston valves and pistons themselves are a good seal while moving without too much resistance.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 15, 2020, 05:45:31 PM
Some time on the grinder and sander to shape the con-rods down, and got things assembled:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6946.JPG)
Couldn't just leave it there, had to throw some compressed air at it, put a small clamp on the fwd/reverse quadrant to hold it in place and clamped on an air line from the compressor:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6948.JPG)
Only one air leak, that was from the clamp around the air line! Easily fixed, and it did show some signs of life - if I turn the crankshaft a bit it snaps around almost a full turn, which tells me that I need to tweak the timing on the valves a bit, but it is very close to running.  :wine1:

Going to take a break before starting that, I know how long the timing-tweaking-testing-tweaking-testing/etc sessions can take! Stay tuned...   :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: zeeprogrammer on March 15, 2020, 06:34:05 PM
Going to take a break before starting that,

Tease!  :cussing:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 15, 2020, 06:38:53 PM
Going to take a break before starting that,
Tease!  :cussing:
Started on the chassis yet? :LittleDevil:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: zeeprogrammer on March 15, 2020, 09:23:27 PM
Going to take a break before starting that,
Tease!  :cussing:
Started on the chassis yet? :LittleDevil:

One of your henchmen (elf) came by and said you wanted the plans. I gave my only copy to him.
You should have them by now and can start.

He provided more than sufficient identification to prove he was yours.
 :stickpoke:

I probably shouldn't have sent him on his way with a kick in the pants but he was so nasty.  ;D
Next time, send the polite one.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 15, 2020, 09:27:37 PM
Nice break, took a nap too, then went and took a look at the valves again. I pulled the cover plate off the side of the cylinder block and looked through the opening in the side of the valve sleeves at the valves going up and down, and saw that both needed to shift upwards slightly, the top of the valve pool opening was not quite getting past the opening in the sleeve. Easy adjustment, just tedious since you can only turn the nut about a 16th of a turn at a time with all the other posts in the way.

Got the travel centered up properly, put the gasket and cover back on, and added air again. Now it behaves better, but apparent that it is still not right - stops at both ends of the travel on number 1 cylinder.


Okay, time to break out another favorite trick, take off the con rods so the pistons will move whenever they want, and apply just a few pounds of pressure so they dont slam back and forth. Turned the crankshaft slowly by hand so the valves open and close. Number 1 piston dutifully slides up and down at the right times, and pushing on it as it nears TDC and BDC verifies that the inlet is fully closed so it can move back the other way without resistance. All good.

Number 2 piston however. That one sits there and looks at me like its a cat. Not interested at all. No movement, no pressure. WTH? Must have gotten some sealant or something in the passage maybe?

So, took out the elbow supplying steam/air to the center of the cylinder block so I can look at the input part of the valves, which are fed to a chamber in the center, and through ports in the sides of the sleeves. Number 1 sleeve, opening is visible. Number 2 sleeve, no opening visible. Well, as the Mythbusters were fond of saying, There's Your Problem!   :facepalm2:

The big question: did I get the sleeve rotated wrong when I installed it, or did I swarf up and forget to drill the hole in the side of the other sleeve?? Just looked back through my photos, and I can't tell!    :paranoia:

So, one thing for it - take a small dental bur and reach down through the opening and cut a hole in the side. Then try and get all the chips out...
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 15, 2020, 09:28:42 PM
Going to take a break before starting that,
Tease!  :cussing:
Started on the chassis yet? :LittleDevil:

One of your henchmen (elf) came by and said you wanted the plans. I gave my only copy to him.
You should have them by now and can start.

He provided more than sufficient identification to prove he was yours.
 :stickpoke:

I probably shouldn't have sent him on his way with a kick in the pants but he was so nasty.  ;D
Next time, send the polite one.
That WAS the polite one! You forgot to include the bag of cookies with the plans - they dont work for free!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 15, 2020, 10:11:21 PM
And its ALIVE! Staggering a bit but alive - here is first movement after cutting the missing port on the inlet side of the valve sleeve for number 2 cylinder:
https://www.youtube.com/watch?v=2T9OBnIF4EM
About halfway through, you can see (I missed it at the time) one of the screws holding the crosshead guides fall out on the table - need to go back and put in some loctite blue to keep things from loosening up as it runs.
That was in one direction, here I put it in the other direction, running a lot smoother, grabbed the camera after it was moving:
https://www.youtube.com/watch?v=JPdx9qC0Mtw
Right at the end it stopped when one of the screws on the slide link control arms fell out!   :facepalm2:   Okay, okay, NOW I'll go loctite them! After celebrating with the shop elves for a while.  But, IT RUNS!   :whoohoo: :pinkelephant: :cartwheel: :whoohoo: :pinkelephant: :cartwheel:

Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Brian Rupnow on March 15, 2020, 10:14:20 PM
you are indeed the magic man.---congratulations.---Brian
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: zeeprogrammer on March 15, 2020, 10:41:56 PM
 :pinkelephant: :pinkelephant: :pinkelephant:
Wow, what a trip!

Going to take a break before starting that,
Tease!  :cussing:
Started on the chassis yet? :LittleDevil:

One of your henchmen (elf) came by and said you wanted the plans. I gave my only copy to him.
You should have them by now and can start.

He provided more than sufficient identification to prove he was yours.
 :stickpoke:

I probably shouldn't have sent him on his way with a kick in the pants but he was so nasty.  ;D
Next time, send the polite one.
That WAS the polite one! You forgot to include the bag of cookies with the plans - they dont work for free!


Ah! So you got the plans. You're on your way then. I'm looking forward to it.

And BTW, your minion got cookies. You shouldn't be surprised if they were gone by the time he returned to you.
And BTW BTW, if that was your polite one...you should get some monitors and cameras in your shop. You might be surprised.
And if you're not surprised...the rest of us need to keep our social distance from them.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Flyboy Jim on March 15, 2020, 11:39:55 PM
 :whoohoo: :whoohoo: :whoohoo:

 :cheers: Jim
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Johnmcc69 on March 15, 2020, 11:41:47 PM
 :ThumbsUp: :ThumbsUp:
 That's awesome Chris! Great work!

 John
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 15, 2020, 11:52:31 PM
Thanks guys, its a big relief to see the piston valve working so well. The only other ones I have done, years ago, leaked air like crazy, these seem to be holding pressure decently. This has been quite a fun build, lots of odd shapes to figure out how to hold for machining, learned a lot on it. Still some things to do, like loctiting the screws, and I want to trim back the bottom edges of the valve guides in the center plate to give more clearance for the valve rod clevises, plus make a latch for the reversing quadrant lever.

The other big thing to make is a base to hold it - I considered making a horizontal cradle, but standing it upright gives a better look at it all round. So, found a nice chunk of heavy hardwood up in the lumber stacks, cut a nice tapered rounded diamond pattern in it, and drilled it for the frame rods. The acorn nuts are hidden in counterbores on the bottom, but so it goes.
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6953.JPG)
It holds the engine very well, without being tippy. Still needs sanding and varnishing...
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on March 16, 2020, 03:38:01 AM
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:

Great runner Chris!

If it is going to be run for a long time it may be worthwhile to add some braces from the cylinders to the base - maybe a simulated section of car frame?

Reason is that I worry that fatigue cracks may develop in some or all the 4 tie rods due to the heavy cylinders "wobulating" free in the air high above the tie rod "columns". Alternating direction heavy loads on columns without extra support would have Mr Euler doing 120 rpm in his grave.   :Lol: :shrug:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Admiral_dk on March 16, 2020, 11:36:04 AM
Great to see it run  :ThumbsUp:   :cheers:

It looks like you want to stay on the Moyra (?) / Monster appearance with the "Show stand"  ;) .... also quite unlike the car position wise (unless the car is in a vertical drop)  :LittleDevil:

Per
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Ye-Ole Steam Dude on March 16, 2020, 12:15:03 PM
Hello Chris,

Boy another absolutely beautiful engine and great craftsmanship.  :praise2:

Have a great day,
Thomas
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 16, 2020, 01:12:55 PM
:ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:

Great runner Chris!

If it is going to be run for a long time it may be worthwhile to add some braces from the cylinders to the base - maybe a simulated section of car frame?

Reason is that I worry that fatigue cracks may develop in some or all the 4 tie rods due to the heavy cylinders "wobulating" free in the air high above the tie rod "columns". Alternating direction heavy loads on columns without extra support would have Mr Euler doing 120 rpm in his grave.   :Lol: :shrug:
Good idea. I like the vertical stand for access all around.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: steamboatmodel on March 16, 2020, 03:06:44 PM
I think it would work good on a recumbent trike!
Gerald.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 16, 2020, 03:10:45 PM
I think it would work good on a recumbent trike!
Gerald.
Plenty of power in it - while testing it came around and bit me in the thumb, so its got attitude!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: steam guy willy on March 16, 2020, 03:11:49 PM
Great to this working, and will it go into vehicle ??  Lovely work as usual ,  always a pleasurable moment to see these engines operating. Love it !!!

willy
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 16, 2020, 04:38:52 PM
Great to this working, and will it go into vehicle ??  Lovely work as usual ,  always a pleasurable moment to see these engines operating. Love it !!!

willy
Thanks Willy, at one quarter scale, the vehicle would be too big for my tools!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 16, 2020, 05:11:08 PM
More adjustments on the valve timing, its starting to run smoother and slower, still needs a little more fine tuning for that slower speed gallop. Going to alternate that with work on the base. Also may put on the angled supports, though it is quite rigid as is.

https://www.youtube.com/watch?v=KtCE78mAvTA
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: zeeprogrammer on March 16, 2020, 06:09:07 PM
 :pinkelephant: :pinkelephant: :pinkelephant:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 16, 2020, 06:29:35 PM
Some more adjustments on one valve, and found a interference between one con rod and one crosshead rail in mid stroke. Fixed those, and it is running MUCH smoother now!   :whoohoo: :cartwheel:

[youtube1]https://youtu.be/fh2SCpKJq08[/youtube1]

Time to go sand and finish the base for it.    :wine1:
(oh, and I tracked down that whistling sound, it is the way the air comes through the exhaust manifold, that will get a tweak to the passage)

 
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: cnr6400 on March 16, 2020, 07:04:15 PM
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Craig DeShong on March 16, 2020, 11:16:40 PM
Congratulation Chris, another fine build !
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Flyboy Jim on March 17, 2020, 01:28:30 AM
Great to this working, and will it go into vehicle ??  Lovely work as usual ,  always a pleasurable moment to see these engines operating. Love it !!!

willy
Thanks Willy, at one quarter scale, the vehicle would be too big for my tools!

Chris................Zee has a larger lathe and mill.....................I bet he would build the vehicle for your engine?  :naughty:  :LittleDevil:

Jim
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 17, 2020, 01:34:01 AM
Great to this working, and will it go into vehicle ??  Lovely work as usual ,  always a pleasurable moment to see these engines operating. Love it !!!

willy
Thanks Willy, at one quarter scale, the vehicle would be too big for my tools!

Chris................Zee has a larger lathe and mill.....................I bet he would build the vehicle for your engine?  :naughty: :LittleDevil:

Jim
Gee, what a great idea!  He's been looking for a project, and he's been interested in the Stanley....   :stickpoke:   why didn't I think of that. This hour.   :LittleDevil:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Elam Works on March 17, 2020, 02:48:20 AM
At least the rear axle and wheel assembly. That will give it some inertia to substitute for a lack of flywheel. Especially if you cast the tires in lead.

-Doug
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: kvom on March 17, 2020, 06:17:07 AM
Just back from 3 weeks in Asia and happy to arrive home to see a running engine.   :ThumbsUp:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Jeff Michel on March 17, 2020, 08:28:33 AM
Superb job, thanks for the journey.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: zeeprogrammer on March 17, 2020, 11:06:39 AM
Chris................Zee has a larger lathe and mill.....................I bet he would build the vehicle for your engine?  :naughty:  :LittleDevil:

I can be bought. But I'd need the engine.  ;D

It would take some time. I'm a bit busy 'haunting'.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 17, 2020, 01:28:29 PM
At least the rear axle and wheel assembly. That will give it some inertia to substitute for a lack of flywheel. Especially if you cast the tires in lead.

-Doug
Got drawings or 3d model of those parts?
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 17, 2020, 01:29:25 PM
Just back from 3 weeks in Asia and happy to arrive home to see a running engine.   :ThumbsUp:
Not an easy time for travel. Now in quarantine? Welcome home!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Elam Works on March 17, 2020, 01:51:18 PM
Quote from: crueby
Got drawings or 3d model of those parts?

No, not of those bits. Just photos of work in process; it would have to be freelanced. But hey, the parts fit in the lathe (see pic)! Excluding the very early 'dry' engines, the differential was encased in an aluminum casting. That would allow some latitude for shortcuts, like eliminating the differential.

-Doug
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: kvom on March 17, 2020, 01:52:43 PM
Just back from 3 weeks in Asia and happy to arrive home to see a running engine.   :ThumbsUp:
Not an easy time for travel. Now in quarantine? Welcome home!
No quarantine and other than pollen allergy and jet lag I feel fine.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: gbritnell on March 17, 2020, 02:35:55 PM
Truly outstanding Chris! Another fine build for your collection. I enjoy all of your documentation and appreciate all the work that goes into not just building the engine but presenting it to us.
gbritnell
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Firebird on March 17, 2020, 02:49:34 PM
Hi Chris

 :ThumbsUp: :praise2:

Cheers

Rich
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 17, 2020, 07:13:28 PM
Thanks guys! Today is waiting for varnish to dry on the wood base, the poly stuff dries quick, but the wood has a thirsty spot that needed a few extra coats. I am getting ready to get it all assembled for final portraits/videos in the next day or so.
 :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Don1966 on March 17, 2020, 07:23:10 PM
Out standing Dog I didn't expect anything less. ........ :Love:


 :drinking-41:

Don
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 17, 2020, 11:33:55 PM
Thanks guys! I got the wood base finished, and things re-assembled for some final photos and videos. Below are some pictures, videos will be going up in the Showcase section shortly. Thanks all for following along and helping me out!

The shop elves posing with their, I mean my, work:
(http://listerengine.com/coppermine/albums/userpics/10043/IMG_6961.JPG)
And a video of them watching it run:
https://www.youtube.com/watch?v=2L6AVah3o6M pictures and videos over in the Showcase section of the forum.   :cheers: :cheers: :cheers:

The next project? I am going to switch over for now to work on the RC model of a Cat 340D excavator that I've been working on in the background, and get that one going before starting anything new. The original is a modern style diesel/hydraulic machine, my model uses small gearmotors and leadscrews to simulate the hydraulics, which are quite expensive and can be quite messy when a leak happens. I am running a build thread over on the RC Truck and Construction model forum, here:
https://rctruckandconstruction.com/showthread.php?t=13632
After that, the next steam engine project I am planning is of a Mann 5 ton overtype steam lorry, based on the one out in Vancouver at the BC Discovery Center, which I have a few videos and photos of, plus information from some old books. If any of you happen to have photos/videos of that machine, PLEASE post them or email me with them, there is not a lot out there. I have begun drawing the frame of it up as a 3D CAD model in Fusion 360, will be continuing that this spring.
Again, thanks for following along!   :cheers:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Roger B on March 18, 2020, 10:49:25 AM
Excellent  :praise2:  :praise2:  :wine1: Your elves look proud as well  :ThumbsUp:  :ThumbsUp:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Bear on March 24, 2020, 04:20:27 AM
Amazing. Was it all made on your Sherline lathe and mill?
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: Dreeves on March 24, 2020, 12:08:11 PM
Chris, Great job again. Now you need to make the car to put it in  :ROFL:

Dave
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 24, 2020, 12:19:01 PM
Amazing. Was it all made on your Sherline lathe and mill?
Yes - all my models are done on them.
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on March 24, 2020, 12:19:48 PM
Chris, Great job again. Now you need to make the car to put it in  :ROFL:

Dave
Still waiting on Zee to make the car for me....  :stickpoke:   Going to be a while I think!  :Lol:
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: FKreider on August 14, 2020, 03:41:02 AM
Beautiful work!
Title: Re: Chris's Build of a Stanley 735 Engine
Post by: crueby on August 14, 2020, 04:09:29 AM
Beautiful work!
Thank you Frank! Quite a fun project.   :cheers:
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