Model Engine Maker

Engines => From Plans => Topic started by: vcutajar on April 21, 2016, 11:09:03 AM

Title: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 21, 2016, 11:09:03 AM
If you can't see the photos of this build log suggest you go here:
http://www.modelengineeringwebsite.com/USS_Monitor_engine_build_1.html


Here I am at the start of a new build.  Ever since Julius kindly made available the plans, it immediately caught my eye.  I am a person who only works on one project at a time so I had to wait until the Corliss and the Worden were finished before I could start on the Monitor.  With Chris's version already finished and Carl's and Bruce's ones still a work in progress, I hope that this fourth version will not create a lot of confusion.

For those that have followed my previous projects, it will not come as a surprise that this is going to be a slow build.  I will be using the metric plans but also comparing dimensions with the imperial plans.  In fact I have already decided that I will be reducing some of the 4mm holes in the metric plans to 3mm.  This will be also my first project where I intend to use a lot of aluminium.  Don't ask what grade I am using because I do not know and I don't want to get a blank stare from my usual supplier.

I have a habit of going into a lot of detail when doing the write-up because I like to keep it as a diary.  If I am over-doing it please say so.

I like to start a project with something simple which does not have to fit with something else.  Item 4 was a good candidate for this.  It is the outrigger top plate and two are required.  I am using 6mm thick and 50mm wide flat bar for these.  Started by getting the length to size.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20001.JPG)

Started getting the width down from 50mm to 45mm by milling both sides.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20002.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Tjark on April 21, 2016, 11:29:59 AM
Vince, this will be a nice project.
I will follow your build as usual.

  Tjark.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Jim Nic on April 21, 2016, 11:53:14 AM
Good to see you on a new project Vince, I am following your inspirational Corliss build as I make my own version.  Please keep the detail in your log, it helps me and I am sure a lot of other people even if we don't comment directly.
Jim
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 21, 2016, 12:54:16 PM
Thanks Tjark and Jim.  Hope I don't bore you to death.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: b.lindsey on April 21, 2016, 01:07:19 PM
There can never be too many build logs or too much detail Vince. Go for it!!  I will be following along as always with your projects.

Bill
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on April 21, 2016, 01:40:54 PM
 :pinkelephant: :pinkelephant:

And what Bill said.

Now there's another thread I can refer people to in hopes of distracting them from mine.  :Lol:

Hm...gives me an idea. I wonder if there's a way to steal images from you Monitor builders and put in mine.
Nah. I'm lousy at photoshop.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Captain Jerry on April 21, 2016, 02:55:02 PM
Glad to see this thread start, Vince.  I have been following all of the Monitor builds and have been thinking about doing one myself.  Your detailed and and methodical approach will be well worth following.  I suspect that there are many other Monitor builds in progress because of the availability of these detailed plans. 

Jerry
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on April 21, 2016, 02:58:43 PM
I'll be watching along on this one too.   :popcorn:

Your corliss build is one that I have been referring to during my build. Thanks!
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 21, 2016, 04:45:25 PM
Thanks Bill, Carl, Jerry and Chris for your comments.

Chris, I will be also referring to your Monitor build for inspiration.  I will also be studying Carl's and Bruce's builds as they progress.

This evening continued on the two parts by drilling all the holes.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20003.JPG)

These should have been 4mm holes but I made them 3mm.  I think if I made them 4mm then the bolt heads would have been too close to the edge.  I still need to round off the corners and I also need to countersink one of the holes.  Cleaned up the top and bottom surfaces with sandpaper.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20004.JPG)

Looking at this photo is already giving me an idea of the size of this model.  It looks larger than I imagined.  Next time I will decide which surface is going to be the top surface and then countersink the hole.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on April 21, 2016, 05:42:13 PM
It looks larger than I imagined.

Yes. It looks like you're going by plans. Frames are 14" (355mm) long.  :o
Please do your referencing of other builds in the following order:
1) Chris...completed and well made.
2) Bruce...in progress and will be well made.
3) Carl...if you need to know how not to.

 :Lol:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Dave Otto on April 21, 2016, 06:50:30 PM
Hi Vince

Good to see you starting on a new project! I will be pulling up a chair and following along with your build.

Dave
Title: Re: Vince's version of the Monitor Steam Engine
Post by: fumopuc on April 21, 2016, 08:36:44 PM
Hi Vince, good to see a new engine project in your shop. I will following along.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on April 21, 2016, 08:41:18 PM
It looks larger than I imagined.

Yes. It looks like you're going by plans. Frames are 14" (355mm) long.  :o
Please do your referencing of other builds in the following order:
1) Chris...completed and well made.
2) Bruce...in progress and will be well made.
3) Carl...if you need to know how not to.

 :Lol:

Hope you were not judging it from the pictures of mine, which I made at 80% of the size on the plans! 

 :popcorn: :popcorn: :popcorn: :popcorn: :popcorn: :popcorn: :popcorn: :popcorn: :popcorn:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: bruedney on April 21, 2016, 08:44:11 PM
Woohoo another Monitor build to compare notes with.

It looks larger than I imagined.

Yes. It looks like you're going by plans. Frames are 14" (355mm) long.  :o
Please do your referencing of other builds in the following order:
1) Chris...completed and well made.
2) Bruce...in progress and will be well made.
3) Carl...if you need to know how not to.

 :Lol:

Mine -well made??? Not sure about that Zee. But we are all on this journey together now.

Can't wait to compare notes!

Bruce

Title: Re: Vince's version of the Monitor Steam Engine
Post by: Don1966 on April 22, 2016, 12:53:14 AM
Good to see you on another build Vince and are we going to have as much banter as Zee's thread..... :lolb:
Just don't let him get started on food are he'll fill you thread with it........ :lolb:

Don  8)
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Alan Haisley on April 22, 2016, 04:50:49 AM
Oh, boy!
Another Monitor build. I love these.  :popcornsmall:
Have at it, Vince.


Alan
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 22, 2016, 11:45:24 AM
Thanks guys for the interest.

I was going to countersink the hole in each plate today but decided otherwise.  I am going to leave it until I fit it to the part below it.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20005.JPG)

No, I haven't been working during the night.  I cheated a bit and had them laser cut and picked them up this morning.  Made from 3mm mild steel and cost me 58 Euro.  I could not resist it.  Need to deburr it a little and wipe them with an oily rag to protect against rust.

Vince

ps: All the 4mm holes have been reduced to 3mm on the frames also.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: tvoght on April 22, 2016, 12:59:47 PM
I'm watching Vince. The laser-cut plates look good!

++Tim
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 22, 2016, 05:17:52 PM
Thanks Tim. At the moment reducing two bars of 30 x 30mm aluminum to 25 x 25mm. Very slow going but I will get there eventually. Good thing I have power feed on the X axis!

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on April 22, 2016, 05:27:53 PM
Good thing I have power feed on the X axis!

Yes! This model certainly made me wish for that.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 23, 2016, 09:43:44 PM
Yes, thank goodness I have it, especially as I need to remove lots of material in several passes.  Mine is a bit temperamental in operation but luckily it behaved well in the last two days.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 24, 2016, 10:33:05 AM
Yesterday (or was it the day before yesterday?) started work on item 3 which is the outrigger base frame.  Two of these are required.  These are 25 x 25mm and I actually found aluminium bar stock of this size, but by the time I would clean up the sides from all the dents and scratches, the finished size would be much smaller.  Next size up that my supplier had was 30 x 30mm!

So I had to spend some quality time with the mill bringing it down to size.  Luckily, the X axis power feed did not give me any problems (it can be a bit iffy to get it to start working).

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20006.JPG)

Bringing the length down to 130mm.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20007.JPG)

I did it with both bars in the vice to make sure that they are equal and to save some time.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Roger B on April 24, 2016, 06:41:09 PM
Another interesting project  :ThumbsUp:  :ThumbsUp: I will be following along  :wine1:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 25, 2016, 04:33:21 PM
Roger hope you enjoy the ride.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 25, 2016, 04:45:28 PM
A little more progress.

Drilled and tapped the 3mm holes in the outrigger base frames and countersunk the hole in the outrigger top plate so that I can fit them together.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20008.JPG)

Drilled and tapped the 3mm holes in the sides of the outrigger base frames.  This is the setup I used to hold it on the mill table.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20009.JPG)

I had ordered a 3mm carbide slot drill to cut the slots in the outrigger base frame and was hoping that it would have arrived by today.  Unfortunately, it didn't, so I have to wait for it to finish the base frame.  Still, I did a test fit of the outrigger base frame to the front and rear base frames (items 1).

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20010.JPG)

I used 3mm bolts as shown on the plans but was wondering if studs and nuts would look better.  What do you think guys?

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Jim Nic on April 25, 2016, 11:27:50 PM
Studs 'n Nuts every time for me (although I cheat and use threaded rod and not real studs like Jo does).
Jim
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on April 25, 2016, 11:32:44 PM
I've no real experience here.
The bolts you have look good to me...but I'd probably throw them on the lathe and face off the markings.

But who knows what I'll end up on mine. It's such a struggle getting the time to do the job right...I may end up with...gasp...socket head cap screws.

(I didn't say that did I? Nah.)
Title: Re: Vince's version of the Monitor Steam Engine
Post by: bruedney on April 25, 2016, 11:45:43 PM
I have heaps of torx head screws from a couple of commercial laser printers I have stripped so I will probably use them (check out some of the pics on my thread).

If I was building an exact replica then I would use what ever would make it authentic. As this actual design is a bit different to the real thing I would go with what looks good or what you have in stock

50mm face mill turned up today  :whoohoo: more swarf tonight  :cartwheel: :cartwheel:

Bruce
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on April 26, 2016, 12:40:10 AM
I've no real experience here.
The bolts you have look good to me...but I'd probably throw them on the lathe and face off the markings.

But who knows what I'll end up on mine. It's such a struggle getting the time to do the job right...I may end up with...gasp...socket head cap screws.

(I didn't say that did I? Nah.)

Either look good. Studs and nuts do add a little more detail for the eyes to get mesmerized by.

Zee, you always have the time to do it right, the trick is to get yourself to use it and move the completion date out and out. Someday I'll be that disciplined... Not there yet!
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on April 26, 2016, 01:03:29 AM
I've no real experience here.
The bolts you have look good to me...but I'd probably throw them on the lathe and face off the markings.

But who knows what I'll end up on mine. It's such a struggle getting the time to do the job right...I may end up with...gasp...socket head cap screws.

(I didn't say that did I? Nah.)
Zee, you always have the time to do it right,

Thanks Dad.  :lolb:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on April 26, 2016, 01:19:43 AM
I've no real experience here.
The bolts you have look good to me...but I'd probably throw them on the lathe and face off the markings.

But who knows what I'll end up on mine. It's such a struggle getting the time to do the job right...I may end up with...gasp...socket head cap screws.

(I didn't say that did I? Nah.)
Zee, you always have the time to do it right,

Thanks Dad.  :lolb:

Thats enough young man! You go straight to your shop and make something right now!!   :old:

Wait a minute, you are older than me!?  :lolb:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on April 26, 2016, 02:32:38 AM
I've no real experience here.
The bolts you have look good to me...but I'd probably throw them on the lathe and face off the markings.

But who knows what I'll end up on mine. It's such a struggle getting the time to do the job right...I may end up with...gasp...socket head cap screws.

(I didn't say that did I? Nah.)
Zee, you always have the time to do it right,

Thanks Dad.  :lolb:

Thats enough young man! You go straight to your shop and make something right now!!   :old:

Wait a minute, you are older than me!?  :lolb:

I don't know about years. But certainly not in spirit.  :Lol: And that's what counts.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: bruedney on April 26, 2016, 02:49:15 AM

I don't know about years. But certainly not in spirit.  :Lol: And that's what counts.

I hear that aged spirits are the best kind - not that I partake anymore but that is what I have heard

Bruce
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 26, 2016, 05:05:23 AM
Thanks guys for the feedback.

Quote
(although I cheat and use threaded rod and not real studs like Jo does)

Don't worry Jim.  That's the way I also do it.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Captain Jerry on April 26, 2016, 12:38:53 PM
Thanks guys for the feedback.

Quote
(although I cheat and use threaded rod and not real studs like Jo does)

Don't worry Jim.  That's the way I also do it.

Vince

Use what ever you want, as long as you dome the ends!
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 27, 2016, 04:41:44 PM
Thanks Jerry

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 27, 2016, 04:52:26 PM
The 3mm slot drill arrived but in the meantime I started work on items 14 and 15, the cylinder mounting plate and the rear frame spacer plate.  They are identical to each other except that one of them also has the mounting holes for the cylinder.  I am thinking that for now I am not going to drill for the cylinder mounting holes.

These were made using aluminium flat bar 12mm thick and 25mm wide.  Cleaned up all the sides with sandpaper and took a skim cut to the top of the plate to make sure it is flat.  Also used this face as the datum for the 3mm tapped holes.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20011.JPG)

A family shot of what I have till now.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20012.JPG)

Next I will do the 3mm slots.

I was looking at the plans at the bronze bearings for the crankshaft and it says a light press fit.  I wonder what it actually means?  Sort of a slip fit?

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on April 27, 2016, 05:28:42 PM
The oil cups for the bearings keep them from moving, so I just made mine a slip fit into the frames. Looking great!
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on April 27, 2016, 06:18:21 PM
We're talking about the bearings in the center of the frames right?
They do have oil cups (on the metric plans only if I recall - not that it matters) but the bearings also have a collar that keeps the bearings in place.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 27, 2016, 06:34:58 PM
Carl the metric plans also have the collars.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on April 27, 2016, 08:31:45 PM
Carl the metric plans also have the collars.

Yes the collars are in both plans...but not the oil cups (I don't believe).

But does it answer your question about the fit? I'm thinking they mention 'light press fit' just to take out play between the bearing and the frame.
I don't know how much looser a slip fit would be or whether it makes a difference.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 27, 2016, 09:17:31 PM
What I understand to be a slip fit is that that I can insert it in the hole with my hand and having minimal play and it can rotate freely in the hole.

I think I will go for that.  The collar will not guarantee that it will not rotate but as Chris said, the oil cup should lock it in place.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on April 27, 2016, 10:36:38 PM
Ah, I get it.  :facepalm:

It wasn't about the bearing moving in and out. It was about rotating.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 28, 2016, 12:31:52 PM
Next up was to make the slots in the outrigger base frame.  I had already resigned myself to do the slots using a slitting saw but then Bruce did his and he reminded me that there are slot drills and endmills whose shank diameter is the same as the cutter diameter.  Totally forgot about it.

So I ordered one and received it a couple of days ago.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20013.JPG)

Marked it up and proceeded with the cutting operation.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20014.JPG)

Used 0.5mm DOC per pass.  The plans called for a depth of 13mm but I made it 13.5mm to give me some extra sideways adjustment just in case I need it.

The new carbide cutter did a nice job of it and it did not take long to finish all four slots.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20015.JPG)

Trial fit with the inner frames.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20016.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 30, 2016, 09:56:47 AM
Did the spacers that go between the frames.  These are items 5 and 6.  I would have liked to make them from 8mm stainless steel but did not have that size and was too lazy to go get some.  So made them from BMS instead.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20017.JPG)

Fitted in place.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20018.JPG)

I guess that finishes the infrastructure on the model but before I continue further I will be making some studs.  If I don't make them now they will never be done.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Don1966 on April 30, 2016, 03:06:56 PM
That's some nice work Vince and I am still with you bud.......... :ThumbsUp:


 :popcorn:
Don
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Dave Otto on April 30, 2016, 04:02:15 PM
Very nice work Vince; I'm enjoying following along with your project.

Dave
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 30, 2016, 04:11:27 PM
Thanks Don and Dave for the comments.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on April 30, 2016, 07:53:08 PM
Looking good.  :ThumbsUp:

More fun stuff coming up.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 30, 2016, 10:10:47 PM
I agree.  That was the easy part.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: b.lindsey on May 01, 2016, 12:39:39 AM
Very nice Vince!  That BMS stock finished up nicely and should be fine for the spacers. Now we need to get Zee back working on his Monitor and off of the food and cookie thingy  ::)

Bill
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on May 01, 2016, 01:03:23 AM
Very nice Vince!  That BMS stock finished up nicely and should be fine for the spacers. Now we need to get Zee back working on his Monitor and off of the food and cookie thingy  ::)

Yeah sorry. Having a little trouble with motivation.

In the meantime I'm enjoying living through Vince and Bruce.

P.S. I'm the foodie. Chris is the cookie.  :lolb:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: bruedney on May 01, 2016, 01:13:32 AM
Yeah, mine has stalled too. Too many projects and not enough time. Been working on a new controller enclosure for the CNC mill.
Bruce
Title: Re: Vince's version of the Monitor Steam Engine
Post by: fumopuc on May 01, 2016, 07:42:17 AM
Hi Vince, nice family shot and good progress. Waiting for the next steps.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on May 01, 2016, 12:13:31 PM
Thanks Bill, Carl, Bruce and Achim for having a look.

At this rate I am going to finish before Carl and Bruce.  Better I slow down.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on May 01, 2016, 01:23:41 PM
Vince
Very nice work. Now that you, Bruce and Zee have solved some initial issues, I can get a start on mine.
It's interesting to see three approaches to the same problem. I will freely appropriate from you guys.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on May 01, 2016, 02:15:46 PM
At this rate I am going to finish before Carl and Bruce.  Better I slow down.

If your intent is to be slower than me...you won't be in your shop for some time.  :Lol:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on May 01, 2016, 02:23:19 PM
Stan

Looking forward to see your version.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on May 01, 2016, 02:25:44 PM
Quote
you won't be in your shop for some time.  :Lol:

How did you find out??? :headscratch:

ESP or something?

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on May 01, 2016, 04:37:15 PM
Bunch of studs made from 3mm threaded rod with nuts super-glued.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20019.JPG)

Used two of them next to two bolts to see the difference.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20020.JPG)

Studs look better.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: tvoght on May 01, 2016, 04:48:58 PM
That's an interesting approach to the studs. They look good.
Tim
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on May 01, 2016, 04:52:47 PM
They look great Vince.

And I like the super glue idea.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on May 01, 2016, 05:55:07 PM
One dissenting vote for the bolts.
Now for the critical question: All 3 versions have "windows" in the plates. i really like it but wondered where it came from. Not on my drawing set.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on May 01, 2016, 06:16:50 PM
One dissenting vote for the bolts.
Now for the critical question: All 3 versions have "windows" in the plates. i really like it but wondered where it came from. Not on my drawing set.

The windows are in the metric plans, not the imperial. If you're working off the imperial, it's a good idea to check against the metric. There are other features in the metric plans you might consider too. If I recall correctly, there's a couple of oil cups missing on the imperial.

'dissenting vote'? How come?
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on May 01, 2016, 06:18:39 PM
Thanks, I'll check the metric set.
Dissenting only because I like the look of the bolt heads as opposed to the studs. Personal preference.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: b.lindsey on May 01, 2016, 08:34:27 PM
I have to agree with you Vince, the studs look very nice, though I could happily live with the bolt heads too like Stan. So did you make a simple fixture to get the 1.5 threads sticking out from each nut. Jo might be checking  :lolb:

Bill
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on May 01, 2016, 08:38:54 PM
I believe that one of the vendors at NAMES had the "1.5 threads above the nut" gauge. Starrett #4634-A.
He'd only accept GBP in payment.  :ROFL:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on May 01, 2016, 09:10:49 PM
Thanks guys for the interest.  The 1.5 threads were set with an EyeBall MKll gauge. :cartwheel:

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Tennessee Whiskey on May 01, 2016, 10:02:09 PM
Appears this chap went for studs and nuts pretty much throughout.

http://www.stationarysteam.com/monitor/Penny_Shot.JPG.

Great start BTW Vince

Cletus
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Dave Otto on May 02, 2016, 01:18:49 AM
Yup, studs and nuts look much better.

Dave
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on May 02, 2016, 02:22:01 AM
The 1.5 threads were set with an EyeBall MKll gauge. :cartwheel:

I could use one of those tools. Where do I get one and what's the cost?  :Lol:
I have the MKI and it really doesn't do the job.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on May 02, 2016, 02:25:24 AM
The 1.5 threads were set with an EyeBall MKll gauge. :cartwheel:

I could use one of those tools. Where do I get one and what's the cost?  :Lol:
I have the MKI and it really doesn't do the job.

Tough part is unscrewing the old one to install the new one...!
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Flyboy Jim on May 02, 2016, 03:08:33 AM
Put me in the studs and nuts camp.  :ThumbsUp:

However, I think I saw where someone turned the makings off of bolts. I think that would look much nicer.

Jim
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on May 02, 2016, 05:27:39 AM
Thanks Cletus for stopping by.

Yes Jim, if I had to use the hex head bolts, I would remove the markings on the head.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on May 05, 2016, 11:23:34 AM
Last few days I have been working on the crankshaft main bearings (item 12) and the crankshaft main bearing locking rings (item 13).  Fortunately I had a piece of phosphor bronze of the right length.  Can't remember why I had it.

First made the bearing blanks and another blank for the locking rings.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20021.JPG)

Finished off the locking rings first by drilling and boring to fit the bearing blanks.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20022.JPG)

This material is a real pig to drill.

After finishing the rings I replaced the 3 jaw chuck with a collet holder and drilled 9.8mm and then reamed 10mm.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20023.JPG)

Finally, the moment of truth.  Will I bores of the bearings align with each other?  Used a 10mm ground shaft from an old printer to check.  Managed to line them up but it was very stiff to turn.  Eventually I managed to make the shaft turn freely with lots of playing around with the frames.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20024.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on May 05, 2016, 12:28:30 PM
Nicely done. What type of "playing around" with the frames was needed? It seems that with the outer frames screwed into position, not much is possible there. Would it have been better to line drill and ream the bearings after they were in the frames?
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on May 05, 2016, 02:37:02 PM
Yes Stan, line reaming is a distinct possibility especially if you have a big lathe.  I think that even using this method it is still possible to lose alignment of the crankshaft holes once you disassemble the frames for any reason.

In my case I was lucky in that the shaft did pass through both bearings but was stiff to turn.  This meant that only a minute adjustment was required to free up the shaft.  So what I did was that I loosened all bolts than started playing around with the frames until the shaft turned freely.  My plan B was that if I needed more sideways movement of the frames for adjustment, I would have opened up slightly the bolt clearance holes.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on May 05, 2016, 02:54:58 PM
Stan, I just remembered.  As I made the bearings a slip fit in the frames, I could also turn the bearings in the frame and "feel" when the shaft gets free. 

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: fumopuc on May 05, 2016, 09:26:39 PM
Vince, do I have detected a piece of a Bavarian beer can there in the chuck ?
By the way, nice progress.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on May 05, 2016, 09:31:52 PM
Coming along very nicely!   :popcorn:    :DrinkPint:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on May 05, 2016, 10:06:11 PM
Thanks Chris and Achim.

Yes Achim, I think you are correct.  It was made locally under licence some years ago.  If I remember correctly it was called Lowenbrau.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on May 05, 2016, 10:14:28 PM
Nicely done Vince. I was lucky and my crankshaft turns easily but then I haven't bolted the frames up yet.  :thinking:

Löwenbräu
I think that was Opi's favorite.  ;D
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on May 06, 2016, 08:30:52 AM
Trying to decide what to do next.  I would like to do the crankshaft but have not decided how to do it.  The plans show a couple of keys and keyways to hold alignment and some grub screws (set screws) to hold the parts in place.  I am not really convinced that this is the way to go.

Have been looking at Chris's crankshaft and as far as I can tell Chris did not use keys and grub screws to keep the crankshaft together.  It seems a much simpler way to go but not sure how it is all held together.

So Chris, if you are reading this, did you use push fits to assemble the crankshaft or glue?

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on May 11, 2016, 11:22:25 AM
I have decided to leave the crankshaft for now.  Have not decided how to do it.

Instead, I started on items 7 and 9.  These are the front and rear rocker shaft bearing pillar bases.  I am going to do them in aluminium.  I need an aluminium bar with a cross-section of 32 X 45mm.  Closest I could find was 50 X 50mm.  So with a combination of endmills, slitting saw and flycutter I got it to the required dimension.

Drilled all the 3mm mounting holes at the bottom.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20025.JPG)

I am going to attempt doing them as a matched pair, so with a slitting saw cut it off.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20026.JPG)

This is what remained of the original bar.  Managed to save some pieces, so the excess did not all become swarf.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20027.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on May 11, 2016, 01:08:32 PM
Trying to decide what to do next.  I would like to do the crankshaft but have not decided how to do it.  The plans show a couple of keys and keyways to hold alignment and some grub screws (set screws) to hold the parts in place.  I am not really convinced that this is the way to go.

Have been looking at Chris's crankshaft and as far as I can tell Chris did not use keys and grub screws to keep the crankshaft together.  It seems a much simpler way to go but not sure how it is all held together.

So Chris, if you are reading this, did you use push fits to assemble the crankshaft or glue?

Vince

Sorry - just getting caught up and saw this post. On mine, I made the web a push fit on the shaft, drilled and cross-pinned it with a press fit pin, and then either loctited or Tix solder for good measure, forget which way I went, both work as well. The crank pin is only held on one side on the web, on the disc side it is just a sliding fit. On mine I did not use keyways on any of the shafts, used pins instead.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on May 11, 2016, 01:16:00 PM
Nice to see the progress.

Yeah there's several opportunities to do some matched matching of parts on this engine.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on May 11, 2016, 06:08:49 PM
I'm a big fan of tapered pins.  Most of my built up crankshafts have used them. IIRC 4/0. The tapered reamer is quite inexpensive. Under $10 at Victornet
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on May 11, 2016, 09:08:20 PM
Carl, any progress on yours?

Thanks Stan for the suggestion.

Chris, thanks for the info.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on May 11, 2016, 09:16:46 PM
I'm a big fan of tapered pins.  Most of my built up crankshafts have used them. IIRC 4/0. The tapered reamer is quite inexpensive. Under $10 at Victornet

Stan, for a tapered pin hole, do you drill the hole at the smaller size then just use the reamer to open it up, or do you need to drill in steps? Do you make your own pins?
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on May 11, 2016, 09:25:07 PM
Carl, any progress on yours?

 :ShakeHead:

If all goes well I'll get some machine time in this weekend.

In the meantime I live through yours.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: bruedney on May 11, 2016, 10:20:40 PM
Carl, any progress on yours?

 :ShakeHead:

If all goes well I'll get some machine time in this weekend.

In the meantime I live through yours.

Ditto - although I have nearly completed the Rocker bearing blocks - Had the grandson up for the week  :cartwheel: so not a lot of workshop time.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: b.lindsey on May 11, 2016, 10:43:10 PM
Chris, Stan can answer for himself, but I step drill 2if not 3 steps. Makes a lot less work for the reamer and much less time. At the 4/0 or 5/0 size  reamers are not metal hogs and flute depth is shallow. As long as the majority of the hole is tapered the pin ain't coming out on its own once it's seated well.  Just my two cents.

Bill
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on May 11, 2016, 10:50:32 PM
Chris, Stan can answer for himself, but I step drill 2if not 3 steps. Makes a lot less work for the reamer and much less time. At the 4/0 IR 5/0 sizes the reamers are not metal hogs and fkute depth is shallow. As long as the majority of the hole is tapered the pin ain't coming out on its own once it's seated well.  Just my two cents.

Bill

Makes sense. Thanks!
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on May 12, 2016, 12:07:58 PM
Vince
The 4/0 taper pins are small enough that there is not much metal to ream. My procedure is to drill for the small diameter of the taper and then ream a bit, drop the pin in the hole, ream a bit more, test fit, etc until the pin is slightly high enough that tapping it in brings it just above the surface or flush. When I first used them, I tested in a piece of scrap (same material as the real piece). This gives you a sense of how far the pin will tap in. I also go a bit higher in 6061 or brass since the steel pin will press in a bit deeper.
Step drilling, as Bill says, would be better for larger pins, but the 4/0, in my experience, don't really need it.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on May 12, 2016, 12:35:20 PM
Vince
The 4/0 taper pins are small enough that there is not much metal to ream. My procedure is to drill for the small diameter of the taper and then ream a bit, drop the pin in the hole, ream a bit more, test fit, etc until the pin is slightly high enough that tapping it in brings it just above the surface or flush. When I first used them, I tested in a piece of scrap (same material as the real piece). This gives you a sense of how far the pin will tap in. I also go a bit higher in 6061 or brass since the steel pin will press in a bit deeper.
Step drilling, as Bill says, would be better for larger pins, but the 4/0, in my experience, don't really need it.

Do you buy the pins somewhere, or make them?

Thanks for the tips!
Title: Re: Vince's version of the Monitor Steam Engine
Post by: b.lindsey on May 12, 2016, 12:49:02 PM
Chris, I buy them from MSC  http://www.mscdirect.com/browse/tn/Fasteners/Taper-Pins?searchterm=taper+pins&navid=4287883861.  The 4/0 aren't that bad per 100 pcs. 5/0 and 6/0 are a bit pricier but 100 pieces will go a long way. Plain steel is what I use. Actually from the above link go to page 1098 of the big book and you will find the smaller sizes there.

Bill
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on May 12, 2016, 04:57:54 PM
Continued on the front and rear pillars.

Drilled and bored the 18mm hole for the bearing.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20028.JPG)

I then marked both pillars.  I found that there are a couple of dimensions missing on the metric plans.  They are not critical, so I used a best guess for them.  Removed some of the excess material with a hacksaw and started milling.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20029.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on May 12, 2016, 06:27:57 PM
McMaster 4/0 steel ½"  10.00/50
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on May 12, 2016, 06:43:23 PM
I hadn't thought about boring both as one.
That might've saved me some trouble.

Keep going!
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on May 12, 2016, 09:56:35 PM
Carl

Still not sure if this is going to have a happy ending.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on May 12, 2016, 10:16:54 PM
Still not sure if this is going to have a happy ending.

We are.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on May 13, 2016, 09:28:32 AM
Looks like it is going to work out after all.  First one milled out.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20030.JPG)

Now to do the other one without spoiling it.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: bruedney on May 13, 2016, 09:50:50 AM
Hi Vince

Are you not going to split the rear housing?

If you are then aren't you going to end up with an oval hole?

Personally I wouldn't bother. I made mine from 2 pieces and the bored the hole afterwards. (Photos tomorrow maybe) I am not going to split the actual bearing.

Bruce
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on May 13, 2016, 11:10:22 AM
Hi Bruce

I am not going to split the rear pillar.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on May 13, 2016, 12:06:54 PM
Not splitting the pillar would work just fine. Saves many ops: drilling, tapping, splitting. Seems as if a press fit or "firm" slip fit and Loctite for the bush would work just as well. Alternatively, a ball bearing would also be good.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on May 15, 2016, 09:06:10 AM
Both sets of pillars have been milled out.  Next operation was to separate them.  I only left 4mm between the front and rear pillar and I did not trust myself with the hacksaw, so the slitting saw was brought out again.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20031.JPG)

Next, some corners needed rounding off and was going to do it with a file, but then remembered I had a radius cutting tool which I haven't used in a long time.  So this was put to work.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20032.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20033.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20034.JPG)

Vince

Title: Re: Vince's version of the Monitor Steam Engine
Post by: Jo on May 15, 2016, 09:46:54 AM
Doing well Vince  :ThumbsUp:

Next, some corners needed rounding off and was going to do it with a file, but then remembered I had a radius cutting tool which I haven't used in a long time.  So this was put to work.

If you need any other diameters it is well worth considering the carbide tipped router rounding over bits: They come in all sorts of sizes, with a free bearing race for your collection and are  :naughty: cheap

Jo
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on May 15, 2016, 10:45:23 AM
Thanks Jo for the tip.  Well worth considering.  I think I have some from many years ago but I suspect they might have an imperial size shank for which I do not have any collets.  Still I will check the shank size if I get to find them.  I wonder if the ones available nowadays here have a metric size shanks?

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on May 15, 2016, 12:41:42 PM
Lovely slitting job. As long as the slitting saw is out...
How about a slit sleeve for the router bits? I've made a few from brass and they work well.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on May 15, 2016, 02:23:43 PM
 :popcorn:

Looking good.  :ThumbsUp:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: bruedney on May 15, 2016, 08:06:25 PM
Hi Vince

Are your collects not ER32? No need for sleeves or imperial collects. Just use the one that fits. It is no different than chucking up a 5.5mm bit in a 6mm collet.

Looking good though - you'll be ahead of me and Carl in no time

Bruce
Title: Re: Vince's version of the Monitor Steam Engine
Post by: b.lindsey on May 15, 2016, 08:10:32 PM
Nice job on the rounding Vince...and think of how much time it saves over filing all those corners!!  :agree:

Bill
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on May 15, 2016, 10:04:51 PM
Thanks guys for the tips and words of encouragement.

Yes, Bruce, they are ER32 and they can be closed by 1mm but I try to avoid doing that if at all possible.

Quote
you'll be ahead of me and Carl in no time

I doubt that very much as I will need to stop working on it in the near future.

Vince

Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on May 15, 2016, 10:13:00 PM
Quote
you'll be ahead of me and Carl in no time

I doubt that very much as I will need to stop working on it in the near future.

I'm starting to have little doubt of that. I'd hoped to get some machining in today. But no...gutter cleaning, replacing spa cover, etc.
And the future is starting to look bleak. It looks like some major house projects are on the horizon.  >:(
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on May 18, 2016, 10:35:43 AM
Finished the pillars and did the brass bushes (items 8 & 10) for them.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20035.JPG)

Using the carbide tip of the height gauge I engraved a line around the rear pillar to give the impression that it is split.  Not very visible in the photo.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20036.JPG)

The rocker shafts turn nicely between the pillars.  Like Bruce, I am going to use a 12mm shaft instead of 13mm as depicted on the plans.  The shaft I have is a bit tatty so I am going to source a new one.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: fumopuc on May 18, 2016, 06:08:23 PM
Hi Vince, good to see you back in the shop and some further progress.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on May 18, 2016, 06:23:03 PM
The pillars look great. Neat idea on scoring the split line.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Don1966 on May 18, 2016, 06:34:08 PM
Looking great Vince and I also like the finishing touch on the bearing blocks....... :ThumbsUp:


 :popcorn:
Don
Title: Re: Vince's version of the Monitor Steam Engine
Post by: b.lindsey on May 18, 2016, 07:15:39 PM
More impressive progress Vince!!  Thanks for the great pictures too!!

Bill
Title: Re: Vince's version of the Monitor Steam Engine
Post by: bruedney on May 18, 2016, 08:23:47 PM
Nice one Vince

I have done few more bits but have yet to take any photos.

Not sure what Zee is up to  :stickpoke:

Bruce
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on May 18, 2016, 08:50:23 PM
I'm sure he is waiting for us to catch up.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: bruedney on May 18, 2016, 08:52:29 PM
 :ThumbsUp:  :old:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on May 18, 2016, 08:56:38 PM
Not sure what Zee is up to  :stickpoke:

Ow.

Not a lot. A few obstacles on life's road. It may be a few more weeks. And even then...not sure if the obstacles can be removed or a detour is required.  ;D
Nothing bad though.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: bruedney on May 18, 2016, 10:35:15 PM
Not sure what Zee is up to  :stickpoke:

Ow.

Not a lot. A few obstacles on life's road. It may be a few more weeks. And even then...not sure if the obstacles can be removed or a detour is required.  ;D
Nothing bad though.

Isn't that what evenings are for - to unwind (or wind yourself up when you balls something up) in the workshop.  :stir:

I have until 8.30pm most nights

Bruce
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on May 19, 2016, 01:08:49 AM
Not sure what Zee is up to  :stickpoke:

Ow.

Not a lot. A few obstacles on life's road. It may be a few more weeks. And even then...not sure if the obstacles can be removed or a detour is required.  ;D
Nothing bad though.

Isn't that what evenings are for - to unwind (or wind yourself up when you balls something up) in the workshop.  :stir:

I have until 8.30pm most nights

Normally yes. But right now evenings are being taken up by talking and planning how to remove or get around those obstacles.
But like I'd said...not a bad thing. If all works out...it's going to be a great thing.

In the meantime, as for the Monitor, I live through you, Vince, and Stan (Chris is already finished - and doesn't count anyway since he cheats with elves.)
And I'm enjoying popcorn watching all the other members' work.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on May 19, 2016, 02:04:53 AM
Not sure what Zee is up to  :stickpoke:

Ow.

Not a lot. A few obstacles on life's road. It may be a few more weeks. And even then...not sure if the obstacles can be removed or a detour is required.  ;D
Nothing bad though.

Isn't that what evenings are for - to unwind (or wind yourself up when you balls something up) in the workshop.  :stir:

I have until 8.30pm most nights

Normally yes. But right now evenings are being taken up by talking and planning how to remove or get around those obstacles.
But like I'd said...not a bad thing. If all works out...it's going to be a great thing.

In the meantime, as for the Monitor, I live through you, Vince, and Stan (Chris is already finished - and doesn't count anyway since he cheats with elves.)
And I'm enjoying popcorn watching all the other members' work.
Careful Zee, the elf union might hear you...
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on May 21, 2016, 10:18:27 AM
I made both rocker shafts (item 35) from 12mm silver steel.  In a previous post I said I was going to get some new material for them, but what they had was even worse (rust) than what I had so made them with the material I had.

I also made some spacers that go on the rocker shaft. These are items 36 (2 off), item 50 and item 51.  Wanted to make them from 303 stainless but could not get a short piece.  Was offered 304 or 316 instead and made them from 316.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20037.JPG)


This will be the last update for a while as like last year, I will be coming out of retirement for a while and doing something in the UK.  Same company I was with last year invited me back for the summer months.  I must have done something correct last year!  So now I will be storing and cleaning all the tools and opening up the books again.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: bruedney on May 21, 2016, 10:46:47 AM
Nice

Stay in touch whilst you are away

I hope our build keep you inspired.

Bruce
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on May 21, 2016, 10:54:02 AM
I will surely continue following all the Monitor builds and everything else that is happening Bruce.  This forum will be keeping me company.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on May 21, 2016, 12:49:20 PM
Have a good trip.

Enjoy the curry.  ;D
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on May 21, 2016, 01:51:40 PM
Safe trip, Vince.
The engine will be awaiting your return.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on May 21, 2016, 02:23:24 PM
Thanks Carl and Stan.  Looking forward to your updates.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: b.lindsey on May 21, 2016, 04:05:45 PM
Have a good summer Vince, even if working. Work helps keep us young, and replenishes the coffers for more tools 😃

Bill
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Alan Haisley on May 21, 2016, 05:03:09 PM
Enjoy making some extra cash, Vince. Perhaps you can have tea and cookies with some of the UK members in your off hours.


Alan
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Dave Otto on May 22, 2016, 01:56:32 AM
Have a good (and safe) summer Vince.

Please (if you can) keep in touch with the rest of the group.

Safe travels my friend.

Dave
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on May 22, 2016, 06:50:01 AM
Thanks Bill, Alan and Dave for the good wishes and yes I have a list of things I need to get here.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on June 07, 2016, 05:35:47 PM
So, finally I have settled here in the UK close to Manchester airport and it is beautiful warm weather.  I thought I was going to spend the summer in cool weather!

So for those of you in the UK, what is there of interest to a model engineer in this area?

Still need to check if some of the well known model engineering shops are close by.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on June 07, 2016, 06:05:03 PM
Excellent! Far-afield trip. Pictures!
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Bluechip on June 07, 2016, 07:11:16 PM
So, finally I have settled here in the UK close to Manchester airport and it is beautiful warm weather.  I thought I was going to spend the summer in cool weather!

So for those of you in the UK, what is there of interest to a model engineer in this area?

Still need to check if some of the well known model engineering shops are close by.

Vince

A must IMO  : http://www.nmes.org/

Lots of others. :ThumbsUp:

Like the Anson Engine Museum, Poynton. Probably about 1  hr away depends on traffic.

http://www.enginemuseum.org/

Maccmodels is a supplier in Macclesfield, not all that far.
( Who, incidentally, fulfilled an order for brass angle placed on Sunday evening rather smartly ...  :ThumbsUp:
Came at 11:30 AM today ).

You need to define 'close by' .

Dave

Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on June 07, 2016, 11:53:21 PM
Enjoy the curry! It's a must have.  ;D
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Bluechip on June 08, 2016, 04:45:40 AM
Enjoy the curry! It's a must have.  ;D

There is a thriving 'Chinatown' in Manchester with far, far better cuisine than curries!
Been there many times.
Unless, of course,  you're addicted to curry.
I got bored with the damn stuff years ago .. had one, had 'em all. Overrated junk.   :stir:

Dave

Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on June 15, 2016, 04:29:16 PM
Quote
A must IMO  : http://www.nmes.org/

Lots of others. :ThumbsUp:

Like the Anson Engine Museum, Poynton. Probably about 1  hr away depends on traffic.

http://www.enginemuseum.org/

Maccmodels is a supplier in Macclesfield, not all that far.
( Who, incidentally, fulfilled an order for brass angle placed on Sunday evening rather smartly ...  :ThumbsUp:
Came at 11:30 AM today ).

You need to define 'close by' .

Dave

Thanks for the tips Dave.  I will try to visit those places.  In the meantime, today I visited the Museum of Science and Industry in the city.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on July 23, 2016, 05:04:29 PM
After seeing Bruce's Monitor run I decided that I needed to do something to keep me occupied whilst away from home.  I had the crazy idea to try and build it virtually but to do this one needs CAD and a knowledge of using CAD, both of which I do not have.

So, undeterred by these limitations, I installed Fusion 360 and started climbing the cliff face of the learning curve. :killcomputer:  Attached is the first part I did.  Took me three days to do with a lot of trial and error.  It's a jpg image because I could not find how to save to pdf.

Now I need to make another copy of the frame as two are required.  Hope I find an easy way of doing this.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on July 23, 2016, 05:18:24 PM
Nicely done! And for someone just starting out in CAD (and with Fusion360), that's extraordinary progress.  :ThumbsUp:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on July 23, 2016, 06:19:46 PM
Vince
File. Save as. (Some name like "Outer base frame 2")
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on July 24, 2016, 01:02:11 PM
Thanks Stan. Good tip.  With lots of trial and error (mostly errors) managed to shorten the legs of the inner frames.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Alan Haisley on July 26, 2016, 04:11:42 AM
Vince,
I tend to start a save by making a folder to hold all of a project. Then save CAD, pictures, docs, etc. all in that folder. Makes it easier to find a year later  ;D
Alan
Title: Re: Vince's version of the Monitor Steam Engine
Post by: pgp001 on July 26, 2016, 01:10:18 PM
So, finally I have settled here in the UK close to Manchester airport and it is beautiful warm weather.  I thought I was going to spend the summer in cool weather!

So for those of you in the UK, what is there of interest to a model engineer in this area?

Still need to check if some of the well known model engineering shops are close by.

Vince

Vince

You could visit the home of the full size "Agnes" near Doncaster, there are lots of other superb engines in that museum and its free entry which is a bonus.

If you go, ask them to show you their generating plant, they run the whole site including the nursery and museum from a steam plant burning waste wood chippings from kitchen furniture factories.

http://www.markhamgrangesteammuseum.co.uk/

Phil


Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on July 26, 2016, 09:55:36 PM
Thanks for the tips Alan and Phil.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on July 27, 2016, 09:57:47 PM
Managed to make a virtual assembly of the frames.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: bruedney on July 27, 2016, 10:19:57 PM
Nice  :ThumbsUp:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on July 27, 2016, 11:47:28 PM
Keep going. By the time you're ready to go home, you'll have a runner.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on July 28, 2016, 12:25:07 AM
Thanks Bruce and Stan for the encouragement.  Actually I never thought I would actually manage to do anything with CAD but I guess I am surprising myself.  I forgot to put in the tie rods in the previous image but now have been added.

Vince

(http://www.nam-engineering.com/cm/albums/userpics/10009/normal_Test20Assembly.png)
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on July 28, 2016, 01:57:41 AM
Good stuff Vince.

I'd played with Fusion360 but I was a bit put off by the 'cloud' business but to be fair, I was also used to a different CAD program.

How are you finding it? Is dealing with the 'cloud' a problem?
More specifically, do you feel like you have complete control?

Thanks
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on July 28, 2016, 08:29:24 AM
Thanks Carl for the comment.

I know one can use the package offline (used it on an aircraft) so it must mean that it keeps a copy of the files on the computer. For the rest, I am still too green to give any judgement although it sometimes feels 'buggy'. 

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on August 03, 2016, 06:51:22 PM
Some more progress.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on August 17, 2016, 04:35:07 PM
Some more progress on my virtual Monitor model.  After some trials and errors I can now move all the linkages in unison!! :killcomputer: :cartwheel:

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: gerritv on August 17, 2016, 04:50:37 PM
You are getting to be very proficient. I should get back to improving my own CAD skills, usually better to test in CAD than trying to adapt things while building.

Gerrit
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on August 17, 2016, 07:29:34 PM
Thanks Gerrit. Considering that I have only been dabbling with CAD for less than a month it's not that bad.  I thought it would be harder.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: b.lindsey on August 18, 2016, 01:16:51 AM
You are doing great Vince. That's a lot of progress in a relatively short time.

Bill
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on August 22, 2016, 05:38:21 PM
Thanks Bill.

Added the cylinders, covers, pistons and associated linkages.  Beautiful, as I can make everything move together. I can also see the limits of the piston movement.  I am starting to like this 3D CAD lark.

Wish I had it complete because I think I would have been able to help Bruce in timing his model.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on August 22, 2016, 06:20:28 PM
Once you get the 3d engine done, then you have to model the boiler, pipes, valves, lubricator, water pump, burner, the boat hull.....   :LittleDevil:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on August 22, 2016, 06:45:04 PM
No way.  I want to eventually finish the real thing

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on August 24, 2016, 01:48:08 PM
Need some advise guys.

At the moment I am modelling the slide valve which is made from two parts. Item 58 is the slide valve and item 59 is the slide valve buckle which are shown in the plans in the first attachment.  As can be seen, the slide valve buckle has two 4mm threaded holes on its side.

The second attachment shows the general arrangement of the slide valve.  As can be seen, one of the 4mm threaded holes is used for the valve rod but the other 4mm threaded holes seems to be unused!

Can anybody tell me if there is a purpose to what seems to be a unnecessary hole?

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on August 24, 2016, 03:15:03 PM
I think that when he 3D modelled the part, he just drilled the hole all the way through. It only needs to go through the one side, since the rod does not go through the center opening. The second hole on the other side can be omitted.

 :cheers:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on August 24, 2016, 03:51:51 PM
Thanks Chris for the reply which makes sense.

I was thinking that that hole was for another short shaft which would go into a hole in the side of the steam chest.  This would make sure the slide valve does not 'lift' when under pressure.  But then there is no other hole in the side of the steam chest.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on August 24, 2016, 04:09:38 PM
Thanks Chris for the reply which makes sense.

I was thinking that that hole was for another short shaft which would go into a hole in the side of the steam chest.  This would make sure the slide valve does not 'lift' when under pressure.  But then there is no other hole in the side of the steam chest.

Vince

And the pressure holds the valve down to the plate. I think it is just a drawing error, does no harm.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: bruedney on August 24, 2016, 08:01:33 PM
I spent last evening redesigning this part and the rod to remove the tendency for the rod to pivot. I thought I had close enough tolerances to prevent this but alas no.

I have designed the slide valve to be a normal castle type, extended the rod to have a 2mm extension and added a bush on the other side of the chest.

I will try to post some drawings tonight.

Cheers

Bruce
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Tennessee Whiskey on August 24, 2016, 08:28:46 PM
So Vince,  if you had to choose: handwheel or mouse built  :shrug: :lolb:

Cletus
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on August 24, 2016, 08:53:37 PM
Interesting Bruce.  Would love to see the drawing when you have the time.

Cletus

My choice would be handwheel.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Tennessee Whiskey on August 24, 2016, 08:56:16 PM
Amen, ain't nothing like the smell of cutting oil and some swarf on the floor.

Cletus
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on August 24, 2016, 10:31:32 PM
Bruce, I need another favour.

I am modelling item 57 which is the valve rocker.  On the original plans it had a missing dimension but at a later stage a correction was added to give this missing dimension.  With this correction, the part definitely does not look right.  So I had to correct the correction.

Do you have a drawing of how you did yours to compare it with mine?

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: bruedney on August 24, 2016, 10:44:17 PM
Hi Vince

Have a look at post 222 on my build thread

There is an attachment of my drawing there.

Cheers

Bruce
Title: Re: Vince's version of the Monitor Steam Engine
Post by: bruedney on August 25, 2016, 08:57:41 AM
Hi Vince

I have added my drawings for an updated slide valve to my Thread

Cheers

Bruce
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on August 25, 2016, 11:16:57 AM
Thanks Bruce

I actually had downloaded that drawing of the valve rocker but totally forgot about it.  Thanks for reminding me about it.  Whilst yours is showing as 38mm wide, I made mine 39.5mm wide.  I will leave it as it is and see how it fits in the grand scheme.  If I find problems than I will revert to your dimensions.  At least yours is proven that it works.

I will download the new drawings of the valve and see how it looks.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on August 28, 2016, 01:34:14 PM
I think I found an error in the drawing of one of the bolts (item 67). The length of the 7mm shoulder should be 9mm and not 6mm.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: bruedney on August 28, 2016, 08:12:03 PM
Hi Vince

Have you seen the errata data on the original plans post

Part 67 is included

Cheers

Bruce
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on August 28, 2016, 08:49:54 PM
Thanks Bruce.

I did not see those corrections.  Have been saved in my Monitor Folder.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on August 30, 2016, 12:22:42 PM
After one and a half months, my virtual Monitor engine is finished.  This was my first attempt at any type of CAD and I am must say I am quite pleased and surprised at the result.  There were times when I wanted to rip the last few remaining hairs on my head  :killcomputer: :hammerbash: :slap:, but on the whole it was an enjoyable and educational experience.

I will try to embed a youtube video and also a direct link to a screen cast that I made.  Hope it works.

You will notice that I made the body of the cylinders and also the body of the slide valves transparent just to see what is happening.

[youtube1]https://youtu.be/La_XOxSl2ok[/youtube1]

http://autode.sk/2bycDzm

I played a bit with the timing but not really sure how it should be done or the correct way of doing it.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: fumopuc on August 30, 2016, 12:59:11 PM
Hi Vince, congratulation to your very quick made learning curve. A superb result.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: tvoght on August 30, 2016, 01:11:57 PM
Excellent modeling, Vince.

--Tim
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on August 30, 2016, 01:32:42 PM
Virtually brilliant!   :cheers:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on August 30, 2016, 03:09:50 PM
Amazing job! It seems that the "Vince Method" for learning CAD works.
Simply remove access to all actual machinery, install a CAD program, get a set of drawings and some spare time. Brilliant!
Title: Re: Vince's version of the Monitor Steam Engine
Post by: 10KPete on August 30, 2016, 03:18:51 PM
The 'head first' approach!

Beautiful model, Vince! This 3D cad thing is something I really should learn.....

Pete
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on August 30, 2016, 04:02:13 PM
Thanks guys for the kind words.

Next I will be studying attentively Chris's, Bruce's and Stan's videos of their running Monitors to try to figure out how to time this beast.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: kvom on August 30, 2016, 06:33:59 PM
Not done, missing the steam chest covers.   :atcomputer:   :stir:

Excellent modeling starting from ground zero.  The next time you do one it will take a fraction of the time.

I think the "standard" type of slide valve Bruce is using will be superior, since the length of rod within the linear slot will keep the valve straighter.  Plus there's more surface exposed for air/steam to press the valve against the port face.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: bruedney on August 30, 2016, 07:49:24 PM
Well done Vince  :ThumbsUp:

Now you just have to get back to the workshop to build it for real  :stir:

Cheers

Bruce
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on August 30, 2016, 10:12:07 PM
Thanks KVOM and Bruce.

Can't wait to get my hands dirty again.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: b.lindsey on August 31, 2016, 12:58:18 AM
Most impressive Vince. You really are a quick study on this 3D CAD stuff!! :praise2:

Bill
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on August 31, 2016, 11:31:36 AM
Thanks Bill. Just trying to keep myself busy.

So I have been playing at timing this thing and I think the best combination I could see was when the eccentrics were offset by 45 degrees as seen in the jpg attached below.

Also I made a screen cast turning the model slowly so that I can see the piston, slide valve and ports.

[youtube1]https://youtu.be/Ltl8ikOxtu8[/youtube1]

http://autode.sk/2c40BNJ

Do you think it will work?  Stan, Chris and Bruce what sort of offset did you end up with your models?

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on August 31, 2016, 12:50:41 PM
Mine eccentrics wound up nowhere near 45 degrees from the each other, more like 10, or 15 at the most off of 180 apart. Is that the offset you meant? Yours does not look like 45 offset either, so I am a bit confused.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: kvom on August 31, 2016, 01:15:45 PM
In timing the eccentrics on my paddle engines I had seen advice about setting crank to TDC and positioning valve so that it was "just about to open".  I found this difficult to achieve accurately.

First, I center the valve motion via adjusting the valve rod.  With the eccentric fixed at a random point I turn the crank and adjust until the port opening is equal on both sides.

Now I set the crank to the midpoint of the stroke and adjust the eccentric so that one steam port will be fully exposed.  This is much easier to see.  After securing the eccentric I rotate the crank 180 degrees to verify that the opposite post is fully open.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on August 31, 2016, 01:37:19 PM
Quote
Mine eccentrics wound up nowhere near 45 degrees from the each other, more like 10, or 15 at the most off of 180 apart. Is that the offset you meant? Yours does not look like 45 offset either, so I am a bit confused.

Chris, most probably I have my terminology wrong.  Happens a lot.  So the two attachments below should explain it better. The one on the left is the rear eccentric and the one on the right is the front eccentric.

Quote
In timing the eccentrics on my paddle engines I had seen advice about setting crank to TDC and positioning valve so that it was "just about to open".  I found this difficult to achieve accurately.

First, I center the valve motion via adjusting the valve rod.  With the eccentric fixed at a random point I turn the crank and adjust until the port opening is equal on both sides.

Now I set the crank to the midpoint of the stroke and adjust the eccentric so that one steam port will be fully exposed.  This is much easier to see.  After securing the eccentric I rotate the crank 180 degrees to verify that the opposite post is fully open.

Thanks KVOM. Will surely keep this in mind for when the time comes to actually do it.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on August 31, 2016, 01:52:18 PM
My eccentrics look more like this when one piston is at TDC.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on August 31, 2016, 02:17:29 PM
Mine are also about 10°.  Difficult to compare the timing as the valve rod lengths are variable within the adjustment range. I do like Kirk's method. Much better than "just opening at TDC"
Just for fun, try setting the valve rod lengths at max and then min lengths to see differences in valve position.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on August 31, 2016, 08:59:37 PM
Thanks for the info guys.  I will worry about timing when I get there.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on August 31, 2016, 09:09:23 PM
Thanks for the info guys.  I will worry about timing when I get there.

Vince

And no matter how much prepping, planning, and thinking it out ahead of time, you will still do a bunch of fiddling, tinkering, adjusting, and experimenting...
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on August 31, 2016, 10:21:59 PM
How right you are.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on September 21, 2016, 11:56:29 AM
During the last couple of weeks I have been adding items to this 3D model for the sake of completeness.  I have added the oil cups, the inlet and exhaust pipes and a lot of studs and nuts.

Now I can say that it is truly finished.  I have noticed that some nut sizes might need changing in the real model.  Also, I realised that as the crank disc is also going to work as a flywheel, there is space to make it slightly larger and thicker to give it more mass.

I have learned many things in my first outing in CAD and it also kept me busy whilst away from home.  Next week I should be back home and should continue work on the real model.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on September 21, 2016, 12:30:10 PM
Great model, Vince!
Now that you've built it once, the second go should be easy. :ROFL:
Seriously, I found that modeling a part before I machined it, did make things easier.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on September 21, 2016, 02:18:06 PM
Quote
Seriously, I found that modeling a part before I machined it, did make things easier.

You are right Stan.  As I was modelling each component, I was sub-consciously thinking of the machining operations involved.  Have you painted yours yet?  I am already seeing problems when I come to that stage.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on September 21, 2016, 03:11:34 PM
 Vince
Paint and polish should commence next week.
I pushed the Monitor to the back of the bench to work on another project.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on October 02, 2016, 10:15:45 AM
Finally able to continue with the real build and not the virtual one.

Wanted to do something easy so I chose items 40 and 41 which are the rocker shaft arm center spacers.  I would have liked to do them with 303 stainless but my usual supplier refused to cut me a piece but he was able to cut me a piece from 316.

Machined to lenght and drilled and reamed a 12mm hole.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20038.JPG)

Now I need to drill two 3mm through holes in each spacer.  That's where the problem started.  I am not looking forward to drilling the 3mm through holes especially in the longer spacer which is 46.5mm long.  I am afraid that the holes might wander.  So I am thinking of a convoluted way of drilling half way through and then flipping it over and drilling from the other side and keeping the holes aligned with each other.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on October 02, 2016, 12:35:21 PM
Vince
Here's (as I remember it) how I drilled those holes.

1. .75" thick piece of 6061 clamped to mill table. Drill and tap hole in center (IIRC ¼-20)
2. Plunge Center cutting end mill .5" into fixture to make recess.
3. Spacer bolted to fixture thru the center hole
4. Offset table in X or Y to position of 3mm hole
5. Drill 3mm hole ½ way thru the part
6. Insert pin into 3mm hole
7. Flip part over with pin in 3mm fixture hole
8. Drill thru.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: b.lindsey on October 02, 2016, 02:25:48 PM
Good to see you back at it Vince.

Bill
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on October 02, 2016, 04:02:04 PM
Thanks Bill for having a look.

Stan, I used a different method but using the same principle.

So, I drilled both spacers half way through.  Then I put one in the vice, inserted two 3mm pins and a 12mm shaft.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20039.JPG)

Flipped the other spacer and put it on the other spacer and using the DRO just marked the position of the holes.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20040.JPG)

A little clean up and I can say that these two spacers are finished.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20041.JPG)

I might do the arms that fit to these spacers I have just made.  The plans call for them to be made from BMS but am wondering if I can do them with aluminium.  Easier to work with.  What do you think?

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on October 02, 2016, 04:24:51 PM
Certainly less mass to move with aluminum. Can't think of any reason not to.
Mine is damn heavy.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on October 07, 2016, 05:18:28 PM
Started work on the next part.  This will be item 38 which is the vibrating arms.  I will be doing it with aluminium instead of BMS.  I found a piece of aluminium which might be enough for both of them.  As I was not very sure, I printed two copies from Fusion 360 just to check it out.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20042.JPG)

They fit just right.  So I squared it out and brought the thickness down to 12mm by flycutting.  Applied some blue and marked the arms out.  Driilled and reamed all the holes.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20043.JPG)

Started with milling out some slots.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20044.JPG)

Next, I will separated them and do some work with the rotary table.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on October 09, 2016, 04:20:13 PM
Nearly finished the vibrating arms.  I wonder why they are called that?  It's not that they are vibrating when in operation.

Milled the round ends on the rotary table.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20045.JPG)

And reduced the size of the arms in the middle part.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20046.JPG)

Here they are nearly finished.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20047.JPG)

Still need to do a lot of sanding and polishing before I say that they are complete.  But that's for another day.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Don1966 on October 09, 2016, 04:27:55 PM
Nice work on those rods Vince and still with you...... :ThumbsUp:


Don
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on October 09, 2016, 05:03:07 PM
Thanks Don.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: fumopuc on October 09, 2016, 06:28:03 PM
Hi Vince, good to see you back making swarf.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: bruedney on October 09, 2016, 07:04:08 PM
Welcome back Vince

You will have it running in no time  :ThumbsUp:

Cheers

Bruce
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on October 09, 2016, 09:30:29 PM
Quote
good to see you back making swarf

Thanks Achim.  Yes it is good to be back.

Quote
You will have it running in no time  :ThumbsUp:

Don't hold your breathe Bruce because usually I take a loooooong time to finish.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on October 13, 2016, 03:28:55 PM
Cleaned up the vibrating arms and made two brass bushes for the small end.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20048.JPG)

Pressed them in using the vice and fitted them on the rocker shaft to see how they fit.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20049.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on October 13, 2016, 05:17:36 PM
Nice!

 :popcorn: :popcorn: :popcorn:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Don1966 on October 13, 2016, 05:27:30 PM
Looking good Vince, are we going to put slots in the rod?

Don
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on October 13, 2016, 08:23:46 PM
Thanks Chris and Don.

Don, I have been thinking about it for the last four months and decided not to use keyways.  So for the moment I will keep the arms unkeyed and rotating around the shaft.  Later on, if required, I might slot the shaft and use grub screws (set screws) to lock the arms to the shaft.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on October 22, 2016, 05:49:20 PM
I have been quiet for a while but I am still working on it.  I am working on item 37 which is the Piston Rocker Arms.  I used exactly the same method I used for the Vibrating Arms so I thought I would not bore you all with similar photos.

The only thing different I am doing is milling out the required slot. On the plans it calls for the lenght of the slot to be 19mm but I decided to do it 17mm instead.  And this is where I made a boo-boo.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20050.JPG)

I was milling the slot in the second arm when I got distracted and over-enthusiatic with the X axis handwheel.  I overshot the 17mm line.  I thought I was going to scrap it but after some measurements it was nearly 19mm.  So I am going to leave it at 19mm instead.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on October 23, 2016, 11:15:40 AM
Piston Rocker Arms are finished.  I made them from aluminium instead of BMS.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20051.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20052.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: steamer on October 23, 2016, 11:27:14 AM
Sweeeeet!


Dave
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on October 23, 2016, 02:29:35 PM
Thanks Dave.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Dave Otto on October 23, 2016, 05:18:22 PM
The family shot looks great vice!


Dave
Title: Re: Vince's version of the Monitor Steam Engine
Post by: bruedney on October 23, 2016, 08:47:43 PM
Looking good Vince   :ThumbsUp: :popcorn:

Bruce
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on October 24, 2016, 01:12:32 PM
A bit of extra clearance never hurts. Looking excellent.
Using aluminum should be fine. Mine seems to get heavier every time I move it around.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on October 24, 2016, 05:48:55 PM
Thanks Dave, Bruce and Stan for your comments.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on October 24, 2016, 05:57:38 PM
Decided to start work on the crank.  Started with item 32 which is called the Crank.  Hacksawed a piece of 12mm thick BMS.  Milled it to size and drilled and reamed two 6mm holes.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20053.JPG)

I then milled of some of the waste material.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20054.JPG)

I could file the ends but I think I will setup the rotary table to clean up the semicircular ends.

I am going to attempt to build up the crank without using keys and grub screws but instead using push fits.  I am not sure if this is going to work out.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on October 26, 2016, 12:15:44 PM
I have machined the required shafts to lenght.  Today I bought material for the inner flywheel (item 30) which is also part of the crankshaft.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20055.JPG)

The plans call for this item to have a diameter of 80mm and 15mm thick.  Instead of BMS I am going to use 316 stainless to avoid rust.  The slice I have is 100mm diameter.  I intend to make the flywheel larger to give it more mass.  Would this be beneficial in running the model?

Started facing one side in the 4 jaw chuck.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20056.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on October 26, 2016, 01:50:43 PM
Bigger flywheel can't hurt. Mine is to the drawing and the engine is running on less than 10 psi. Maybe you could just blow into the intake to keep it running :ROFL:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on October 26, 2016, 02:03:42 PM
Thanks Stan for that.  I was not sure if it would make any difference.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: bruedney on October 26, 2016, 07:02:37 PM
Mine is 90mm dia and has about 5mm clearance to the bottom of the frames so you might need to make a cutout in your base material to allow for the extra.

Cheers

Bruce
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on October 26, 2016, 08:31:05 PM
Thanks Bruce for confirming that.  From the middle of the crankshaft to the bottom of the frame, I have 50mm.  So anything below 100mm diameter will work without needing a cutout.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: b.lindsey on October 27, 2016, 12:03:20 AM
Apparently I haven't checked in for a day or so Vince. You are really moving along and some impressive work too!!

Bill
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on October 27, 2016, 01:48:36 PM
Thanks Bill for having a look.  Yes, slowly moving forward.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on October 27, 2016, 05:21:06 PM
More work on the inner flywheel.  Flipped it around in the 4 jaw chuck to face it and remove the excess material.  Infact I had to remove about 5mm to get to the required thickness of 15mm.  I used carbide inserts for this operation.  For the roughing out stage I used some of the chipped inserts that I kept and then changed to a new one for the last 0.5mm.  Before I took it out of the chuck I marked the centre of the flywheel.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20057.JPG)

Off to the mill, where I drilled and reamed the centre hole 8mm.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20058.JPG)

Offset the table by 26mm for the crank pin and stepped drilled 14mm and then using a 15mm slot drill openned it out to 15mm.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20059.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on October 29, 2016, 05:09:59 PM
Some more progress on the crank.

I made the Flywheel insert (item 31) from stainless.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20060.JPG)

This goes into the the 15mm hole of the flywheel.  I made this for a slip fit.

Finished off the shafts to create a shoulder for the press fit.  And these are all the pieces of the crankshaft.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20061.JPG)

Next I pushed in the various shafts.  Finished off the edge of the flywheel with a Dremel grinder.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20062.JPG)

I ended up with a flywheel of 99mm.  A family shot of the crankshaft/flywheel.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20063.JPG)

Tomorrow I will try to mate it with the frame and keeping my fingers crossed that it will align and turn freely.  As they say, "the proof of the pudding is in the eating".

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Don1966 on October 29, 2016, 05:59:51 PM
Looking good Vincent and good to see more progresss...... :ThumbsUp:


Don
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on October 29, 2016, 06:19:26 PM
Thanks Don.  :cheers:

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: b.lindsey on October 29, 2016, 06:36:34 PM
Good looking crankshaft and flywheel Vince. How would you compare the ground finish using the dremel vs. a light finishing pass with a toolbit? Just curious.

Bill
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on October 29, 2016, 06:43:25 PM
I tried using a lathe tool for a finishing pass but could not get a good finish so I slowly ground it which was better.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on October 29, 2016, 09:31:46 PM
Nice result from the grinding wheel - was the flywheel turning at the same time as the dremel was running? Never thought of trying that, have had the rough finish you mention on some large flywheels in the past, have to try this way next time.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on October 29, 2016, 10:02:27 PM
Yes Chris, the flywheel was also turning during the grinding operation.  It is very slow but gives good results.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on October 29, 2016, 10:46:16 PM
Yes Chris, the flywheel was also turning during the grinding operation.  It is very slow but gives good results.

Vince

Looking at the photo again, am I right that the grinding wheel and the flywheel would both turn in the same direction, just at different speeds? Or could you turn the flywheel backwards?   :help:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on October 30, 2016, 04:45:55 AM
The Dremel was running at 33,000 RPM in the normal direction ( it does not have reverse ) and the lathe was turning at 600 RPM in the normal direction.  I tried running the lathe in reverse just to see what happens and the impression I got was that the finish was better when not running the lathe in reverse. Hope this helps.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on October 30, 2016, 08:18:19 AM
This morning I woke up early.  At 7.00 AM (winter time) I was already going to the garage.  The plan for today was to fit the crankshaft to the frame.  I planned to spend the whole day to get the crankshaft running smoothly.

So you can imagine my surprise when the crankshaft ran perfectly when installed for the first time.  Infact I did not believe it and thought I was doing something wrong.  So I removed it and went back home to have another coffee to wake up.  30 minutes later I was back at it.  Re-installed it again and it turned smoothly again with no stiff spots anywhere.  Guess it was beginners luck giving me a hand!!

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20064.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20065.JPG)

[youtube1]https://youtu.be/K_vWrZ7R6kM[/youtube1]

So I don't have anything else to do for today.  Guess I can start planning for the next part to be made.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on November 02, 2016, 02:26:40 PM
At the moment I am working on the Crankrod Bearing End (item 46) and the Crankrod Yoke (item 48).  Will be doing these from aluminium.  Prepared four pieces from 12mm thick and 25mm wide flat bar.

Drilled two 3mm holes in the pieces that will be the bearing ends.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20066.JPG)

Removed some waste material although I suspect that I could have avoided doing it.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20067.JPG)

Set up the 4 jaw chuck and machined the shaft.  Next drilled and tapped the shaft 6mm.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20068.JPG)

One down, three more to go.

Vince

Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on November 04, 2016, 06:25:42 AM
The four shafts finished.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20069.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Don1966 on November 04, 2016, 01:43:05 PM
Smoothly coming together there Vince I like that.......; :ThumbsUp:


Don
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on November 04, 2016, 05:06:45 PM
Thanks Don. Appreciate your comments.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on November 04, 2016, 05:13:29 PM
Started work on the two short ones which will be the bearing end.  Hacksawed and milled the material.  Then bolted it up together and put in the milling vice for drilling.  I want a 13mm hole but do not have that reamer.  So I step drilled until 12.5mm and then finished it with a 13mm endmill.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20070.JPG)

Cleaned them up a little and marked them with number punches before unbolting them. 

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20071.JPG)

Next to make the brass bearings.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on November 06, 2016, 02:16:04 PM
The bearing end of the crankrod are finished.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20072.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20073.JPG)

You might notice that I did them a little differently.  Hope they work out.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on November 06, 2016, 05:16:19 PM
Looks great, Vince. When I did mine, I assembled them and chucked up .5" drill rod coated with fine Timesaver lapping compound just to smooth out the fit. Figured it was easier to relieve any potential binding early on.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: fumopuc on November 06, 2016, 05:37:23 PM
Hi Vince, good to see the bits and pieces comming together.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Don1966 on November 06, 2016, 07:49:08 PM
Yeah we still with you Vince and love the bearing blocks.... :ThumbsUp:

Don
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on November 06, 2016, 08:29:59 PM
Thanks Stan, Achim and Don.

Where possible, I also like to do the polishing and fitting at this stage. 

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on November 09, 2016, 05:33:31 PM
Started work on the yokes.  First crossdrilled and reamed a 6mm hole.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20074.JPG)

Next did the cutout for the yoke.  The plans call for it to be 12mm wide.  I have an endmill that size but decided to start with an 11mm slot drill and then openning it up to about 12mm.  Then used the 12mm end mill to clean it up.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20075.JPG)

Rounded off the ends with the rotary table.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20076.JPG)

For the last operation on the yokes, I needed to set it up in the vice at 45 degrees.  So I used a plastic triangle that the kids use at school.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20077.JPG)

Yokes finished.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20078.JPG)

Next made the shaft that connects the bearing end to the yoke.  Used 6mm 316 stainless.  Threading the ends with a die.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20079.JPG)

Crank rods finished.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20080.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on November 09, 2016, 07:53:30 PM
Those look great!

 :popcorn:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on November 09, 2016, 08:50:50 PM
Thanks Chris.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: b.lindsey on November 10, 2016, 01:33:57 AM
Vince, the finishes on all these parts are excellent. Well done and love all the attention to detail s as well.

Bill
Title: Re: Vince's version of the Monitor Steam Engine
Post by: bruedney on November 10, 2016, 02:38:19 AM
Looking good Vince

You'll have a runner in no time

 :popcorn:

Bruce
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Flyboy Jim on November 10, 2016, 02:45:43 AM
Very nice looking parts, Vince.

Jim
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on November 10, 2016, 04:40:38 AM
Thanks Bill, Bruce and Jim for the nice comments.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on November 10, 2016, 11:12:56 AM
This morning fitted the crankrods and all the bits and pieces I have done.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20081.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20082.JPG)

Everything operates smoothly without any binding.

[youtube1]https://youtu.be/NOBtoBol2v4[/youtube1]

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Roger B on November 10, 2016, 11:45:52 AM
Excellent  :praise2:  :praise2: Still following along in the background  :wine1:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on November 10, 2016, 03:09:06 PM
Thanks Roger.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: 10KPete on November 10, 2016, 03:12:13 PM
Very nice, Vince! Eagerly awaiting more....

 :cheers:

Pete
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on November 10, 2016, 04:31:16 PM
Thanks Pete for having a look.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on November 10, 2016, 05:34:15 PM
I think the next parts to be made would logically (at least for me) be the cylinders, but believe it or not, after all this time, I still have not decided what material to use.  I have these options available:

1)  Metric plans specify an aluminium cylinder with a brass liner and a cast iron piston.
2)  Imperial plans specify a steel cylinder and cast iron piston.
3)  A brass cylinder and cast iron piston.
4)  An aluminium cylinder with a cast iron liner and an aluminium piston.

I am at the moment favouring option 2 which is similar to what I did with the Corliss and gave a great result.

Are there any other methods/materials I should think off?

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on November 13, 2016, 10:20:16 AM
Decision taken.  I will be making the cylinders from BMS just like the imperial plans show.  I will be using 60mm BMS round stock for these and also the cylinder covers.  Problem is that is going to involve a lot of sawing and I am not looking forward to do it with a hacksaw.  So, finally decided to invest in a bandsaw.  Unfortunately, the one I want is not in stock but they said that a new consignment should arrive next Friday.

So in the meantime I started work on item 45 which are the Piston Rod End Links.  I will be doing these with aluminium and brass bushes.  Normally I would press fit the ready made bush but as it is a thin walled bush I was afraid that I might distort it.  So this time I press fitted the solid brass material in the holes.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20083.JPG)

Then I drilled and reamed the brass to make the bush and also milled them down to the aluminium surface.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20084.JPG)

Next to round off the ends.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on November 18, 2016, 12:09:40 PM
The links have been finished and I also made the required four bolts.  I have finally used the ER32 collet block I got from the UK last summer.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20085.JPG)

I always wanted to get one.  Much better than taking the dividing head out.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20086.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20087.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: fumopuc on November 19, 2016, 03:05:57 PM
Hi  Vince, I do love these collect blocks. Newer want to miss them anymore.
The light and easy rotation at your last video is the a demonstration of your accurate craftmanship.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: scc on November 19, 2016, 04:36:51 PM
This build is on my "must watch" list and I'm enjoying every post.  Your finish and workmanship are excellent. Congratulations on a fine build....I'm addicted :popcorn: I agree with your option 2 choice for materials,  I always prefer the ferrous set up.   Well Done.............Terry
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on November 19, 2016, 06:00:28 PM
Thanks Achim.  I also got the ER32 hex block also.  I took advantage of the fact that I was in the UK this summer.

Thanks Terry.  I am also a fan of your traction engine build.  Keep it up.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on November 26, 2016, 07:17:46 PM
Tried to do the Piston Rod Ends (item 44) but failed miserably.  I could have fixed it but it would not have looked good, so I scrapped them.

In the meantime, I got myself a bandsaw.  Not exactly the one I wanted but a slightly smaller one.  Did not want to wait till January to get the one I wanted.  Started work on the Cylinders (item 16A).  Cut a piece of 60mm BMS with my new toy.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20088.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20089.JPG)

With stopping to see what's going on and going slowly, it took 16 minutes to do the cut.  If I had to do it manually it would have taken much much longer.  First one nearly ready.  Still need to reduce the lenght to size.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20090.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: b.lindsey on November 26, 2016, 07:34:40 PM
Nice looking saw there Vince. I am catching up on your log and love how smooth the motion is in that last  video clip you posted. Beautiful!!

Bill
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Don1966 on November 26, 2016, 07:59:41 PM
Vince I just love the motions bud and fantastic work.... :ThumbsUp:

Don.   :ThumbsUp:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on November 26, 2016, 08:30:54 PM
Thanks Bill and Don.  Hope you had a nice holiday over there.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: fumopuc on November 26, 2016, 09:20:54 PM
Hi Vince, congratulations for getting the new bandsaw. I never want to miss mine anymore.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on November 26, 2016, 11:35:05 PM
Thanks Achim.  I guess it's just like a DRO.  Once you have it, you don't want to be without it.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on November 27, 2016, 12:19:39 PM
This is a question for those that have already built this model.

I noticed that some tapped holes in the cylinder intersect each other (see below with the red arrows).  Did you reposition the holes or have you left them as per plans?

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on November 27, 2016, 04:25:48 PM
On my scaled down version I repositioned the valve chest end holes in just enough to clear the cap holes, there was just enough room around the valve rod.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: bruedney on November 27, 2016, 08:05:16 PM
As per plans - made no real difference

Cheers

Bruce
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on November 27, 2016, 08:57:06 PM
Thanks Chris and Bruce for the info.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on December 04, 2016, 12:01:06 PM
Progress has been real slow.  Who said that one will have more time to play when you retire?

Managed to finish both cylinder blanks.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20091.JPG)

Decided to start work on the cylinder end caps (items 17 - 20).

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20092.JPG)

Took it out of the chuck to cut it on the bandsaw but found a problem.  There is about 20mm between the edge of the bandsaw vice and the blade and as such I can't really hold short pieces of material to cut.  Went on the internet to see what other people do and to get some ideas.  Found these to be helpful:

http://mikesworkshop.weebly.com/bandsaw-clamp.html

http://www.cnccookbook.com/CCMiniBandsaw.htm

Made a homemade clamp which should do the trick.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20093.JPG)

Put it to the test and worked like a charm.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20094.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20095.JPG)

Now I can even cut thin slices if I wanted to.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on December 10, 2016, 06:09:37 PM
Managed to finish the end caps of both cylinders.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20096.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on December 11, 2016, 04:57:42 PM
Started the drilling and tapping process for the cylinders and the end caps.  First centered the cylinder with a coaxial indicator.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20097.JPG)

Then drilled the holes with the end cap in place and then tapped the cylinder.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20098.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Tjark on December 11, 2016, 11:54:25 PM
Hello Vince,

You are complaining that the progress is slow.
Watch my build, it’s a lot slower than yours and you are making good progress to my opinion.
I like your home made clamp for the bandsaw.
Wil make also one for mine, so I can saw even small pieces, have made one with clamps but this one is easier to use.
Thanks for the idea.

  Tjark
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on December 18, 2016, 07:15:55 PM
Thanks Tjark.  Can't wait to see your Kiwi running.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on December 18, 2016, 07:32:05 PM
I wanted the location of the holes on the other side of the cylinder to be a mirror image of the side that I had already done.  So I drew a centre line which matched two of the holes on the other side.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor2099.JPG)

Then clamped in the vice and indicated the centre line.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20100.JPG)

Indicated the the bore of the cylinder with the coaxial indicator and drilled and tapped the holes.  Not super accurate but as somebody would say, "close enuf".

Now for some work on the endcaps.  As these were drilled together with the cylinders, the holes in the endcaps are still 2.5mm.  I enlarged all the holes to 3mm.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20102.JPG)

I had turned the spigots which indicated the endcaps in the cylinder bore 2mm thick.  Reduced this to 1mm as per plans.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20103.JPG)

Family shot of the cylinders and endcaps.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20104.JPG)

Vince



Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on December 19, 2016, 06:18:02 PM
I decided to mill the flats on the cylinder with the end caps attached.  First flat I intend to mill is the flat that will serve as the base of the cylinder.  Came up with this setup to mark the flat.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20105.JPG)

Moved the cylinder to the milling machine and set it up using the same method with the straight edge.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20106.JPG)

Started the milling process.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20107.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Don1966 on December 19, 2016, 07:10:17 PM
Nice to see some progress Vince and I am still with you bud..... :ThumbsUp:

Don
Title: Re: Vince's version of the Monitor Steam Engine
Post by: kvom on December 19, 2016, 07:20:12 PM
Unless the orientation of the cap is important, the flats can be anywhere.  OTOH if aligning one screw head with the center of the flat is important, then milling the flat partially first would be marginally more accurate.  From the photos it looks dead on.

Note that having the partial flat as a first op would have made having the screws aligned the same on both ends easier, since the flat against the vise jaw aligns the cylinder radially the same for both.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on December 20, 2016, 12:04:11 AM
Thanks Don and kvom for the comments.

The orientation of the flats is not important as long as they are 90 degrees to each other.  I took the extra step of orientating them in that way just for aesthetic reasons only.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on December 20, 2016, 07:33:45 PM
Started work on the second flat on the cylinders.  This will be for the steam chest.  Marked it out.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20108.JPG)

This will be a larger flat than the previous one.  Infact I have to mill off 6.5mm of material.  I had a crazy idea.  Why not remove some of the material with the bandsaw?

Managed to do it safely on both cylinders.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20109.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20110.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on December 21, 2016, 07:00:59 PM
Today finished milling the flat on the cylinder for the steam chest.  Only had about 2mm to remove as opposed to 6.5mm if I had not removed some material with the bandsaw.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20111.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20112.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Don1966 on December 21, 2016, 10:37:04 PM
I'd say that turned out quiet well Vince. ...... :cheers:

Don
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on December 21, 2016, 10:47:25 PM
Thanks Don.  It was a relief when I finished the flats without incidents.  For some reason I was not looking forward to do them.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on December 22, 2016, 07:49:40 PM
Started today with something not complicated.  Drilled and tapped 6mm the mounting holes of the cylinders.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20113.JPG)

Next, something a little more complicated.  Did the 4.5mm exhaust port slots.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20114.JPG)

And then something a little more delicate.  The 2.5mm inlet port slots.  For these I first chain drilled with a 2mm drill before using the 2.5mm slot drill.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20115.JPG)

Tomorrow I will finish the inlet ports of the other cylinder.  I thought it was going to take longer to do.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: fumopuc on December 22, 2016, 07:35:28 PM
Hi Vince,  I can hear the engine breathe already.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on December 22, 2016, 09:55:13 PM
Achim, I am just keeping my fingers crossed.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on December 23, 2016, 07:02:51 PM
Finished all the inlet and exhaust ports and started the drilling (4mm) operations for the inlet channels.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20116.JPG)

For these operations I used a collet chuck instead of the drilling chuck and a new 4mm drill.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on December 28, 2016, 07:17:48 PM
A belated Happy Christmas to all.

Continued work on the cylinders, namely the exhaust connection.  Made them exactly as per plans.  Had to buy a 14mm slot drill to carve out the cylinder.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20117.JPG)

Then drilled 4.5mm to the exhaust port and tapped the top part 8mm x 1mm.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20118.JPG)

I was going to drill and tap the mounting holes for the valve chest but after a little consideration I thought it better to leave these for now until I actually do the valve chest.  Instead I took a family shot of what I have till now.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20119.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on December 28, 2016, 07:21:00 PM
Looking great!  I agree with your waiting till the valve chests are made, drill all the chest, cover, and mount holes in one session, just in case something has to move.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on December 28, 2016, 07:29:16 PM
Thought I do the pistons and piston rods instead but had to go shopping for the material because I did not have any.  I need some 5mm stainless rod and cast iron for the pistons.  Never bought cast iron locally so was not sure if I would find any.  Went to my usual supplier and was pleased to hear that he had cast iron.  Only problem that for a 26mm diameter piston I had to buy 40mm diameter cast iron!  The other problem was that he could not give me a piece of 5mm 316 stainless but a full 3m rod.  I thought this was going to be expensive but still got them.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20120.JPG)

And believe it or not it cost me 6 Euro including the cutting.

Happy new year to all.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on December 28, 2016, 07:30:48 PM
The extra metal will just have to go towards another model!
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on December 28, 2016, 07:57:32 PM
I guess so Chris although at the moment I do not have anything planned after the Monitor.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Dave Otto on December 28, 2016, 10:03:20 PM
Looking good Vince; I'm still here quietly following along.

Dave
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on December 28, 2016, 10:53:51 PM
Thanks Dave for the encouragement.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on December 28, 2016, 09:01:59 PM
Great progress, Vince.
Agree on the drilling. Do it all in one session.
Coming along nicely. As complex as this engine is, it was one of the easier to get running. Timing was far easier than the Coventry which is a major PIA.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on December 28, 2016, 11:36:05 PM
Thanks Stan for the comments.  Hope mine will run as good as the other three Monitors.  Or is it four?

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: fumopuc on December 29, 2016, 07:25:05 PM
......
And believe it or not it cost me 6 Euro including the cutting.

Happy new year to all.

Vince

This could be a reason to look for a new place to live ..........
Vince, nice progress, I am still  following along quietly.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on December 29, 2016, 11:26:21 PM
Quote
This could be a reason to look for a new place to live ..........

You are more than welcome Achim.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on December 30, 2016, 09:00:17 PM
Finished the stainless steel piston rods (item 43) and the cast iron pistons (item 42A).

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20121.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20122.JPG)

I made the piston end of the piston rod different than the plans.  The plans called for the piston rod to be screwed into the piston and locked with a nut.  I wanted to create a shoulder in the piston rod to locate on the piston so I turned down that side of the rod to 3mm and the piston is held to the rod with a 3mm nut and a locknut.

Took some time polishing the pistons to fit nicely in their respective cylinders.  Now I can move the piston by blowing in the inlet port.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on December 31, 2016, 12:48:39 AM
We REALLY need to see a picture of that
 :lolb:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on December 31, 2016, 12:55:43 AM
 :Jester:  :mischief:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on January 01, 2017, 07:54:51 PM
TAKE TWO of item 44, the Piston Rod End.

Thought I would attempt to redo this item as I was not happy with the first one I made.  Started off with a lenght of 12mm square brass stock.  Centre drilled one end for the live centre.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20123.JPG)

SQUARE STOCK IN ROUND COLLET.

Fitted to the lathe and for the first time thought I would use a collet instead of the 4 jaw chuck to hold the square stock.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20124.JPG)

Started turning the middle part of the material and then finished off with a left hand and a right hand tool.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20125.JPG)

Then drilled and reamed the two 6mm holes.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20126.JPG)

I guess the experiment to hold square stock in a round collet worked.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on January 03, 2017, 07:10:32 PM
More work on the piston rod ends.  Rounded the ends on the rotary table and then they were separated (hacksawed) from each other.  They were put individually in the collet and trimmed to lenght and tapped for the piston rod.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20127.JPG)

Then the slots to create the fork were cut with a 5mm end mill and openned up to 6mm.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20128.JPG)

Finished and cleaned up.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20129.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20130.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: tvoght on January 03, 2017, 07:33:11 PM
Looking good, Vince.

--Tim
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on January 03, 2017, 08:50:23 PM
Thanks Tim for following along.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: steamer on January 03, 2017, 09:06:07 PM
I'm liking it Vince!!!

Dave
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on January 03, 2017, 11:53:31 PM
Thanks Dave.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Don1966 on January 04, 2017, 01:03:36 AM
Nice looking pistons and rods Vince. Glad to see progress buddy.

Don
Title: Re: Vince's version of the Monitor Steam Engine
Post by: b.lindsey on January 04, 2017, 02:36:33 AM
I am a bit behind Vince, but this is really coming together and the finishes are wonderful on all the parts. Beautiful work.

Bill
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Dave Otto on January 04, 2017, 03:26:18 AM
Nice looking parts Vince!


Dave
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on January 04, 2017, 03:35:49 AM
Two more very nice parts. Just keep checking them off the list.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on January 04, 2017, 03:41:13 AM
Nice idea with the collet. Didn't occur to me but having the set of square 5C and hex 5C was the easy way.
 :lolb:
One of our members (Cheepo45) gave Fred and I a tour of the student shop he runs at the U. Of Delaware.
In racks, next to the HLV-H (drool) was the only complete set of 5C collets I'd seen. Fractional, wire gauge, letter and metric.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on January 04, 2017, 01:54:11 PM
Thanks guys for the interest and the comments.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: kvom on January 04, 2017, 12:21:35 PM
Stan is still obsessing over that set of collets.  Only way to get over it is to buy your own set.   :agree:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on January 06, 2017, 05:17:13 PM
Yesterday I started work on the Piston Rod Gland Nut (item 24).  Two are required and I made them out of brass.  I am going to make them slightly smaller than the plan, with a 13mm AF for the head and the threaded part will be 10 X 1mm.  Half way through the process of milling the hexagonal head, I messed it up.  So that went to the scrap bin.

Today I attempted to do them again and was successful after the lesson I learnt yesterday.  Started with 16mm brass stock and turned and threaded it.  Also drilled and reamed the 5mm hole for the piston rod.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20131.JPG)

To the mill where with the help of the ER32 Hex Block I formed the head.  Phew, no mistakes today.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20132.JPG)

Made a threaded fixture so that I can hold the nut in the lathe and face it off.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20133.JPG)

Items finished.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20134.JPG)

Most probably I will do next the Valve Rod Gland Nut (item 25) as it is very similar to the one I did today and I do not need to reset anything on the mill and I can use the same fixture also.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on January 09, 2017, 11:07:09 PM
I did both the Valve Rod gland nuts but left them on the parent stock.  I will part them off when the Steam Chest is finished.

I also drilled the cylinders mounting holes on the frame.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20135.JPG)

Could not resist mounting the cylinders with temporary hardware to see how they look but most importantly to check for any alignment problems with the linkages.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20136.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20137.JPG)

No problems found and the crankshaft still turns smoothly by hand.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Ramon Wilson on January 09, 2017, 11:53:31 PM
Hi Vince - been looking in on the odd occasion, not often I grant you but enough to see some cracking progress  :ThumbsUp:.
 
Just like to say that's some pretty impressive machining you're carrying out there - keep it coming

Kind Regards - Ramon
Title: Re: Vince's version of the Monitor Steam Engine
Post by: b.lindsey on January 10, 2017, 03:44:22 AM
Still following along as well Vince, always nice to see some progress and the level of workmanship too!!

Bill
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on January 10, 2017, 07:47:26 AM
Thanks Ramon and Bill.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on January 20, 2017, 11:31:54 AM
OK.  After the latest forum hiccup, I was lucky in that I only lost one post in this build log which I am recreating below.

Made permanent mounting hardware for the cylinders and also the brass oilers for the crankshaft bearings.  The front oiler is a tight squeeze but fits.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20138.JPG)

After taking a long time to decide what material to use for the steam valve chest and the cover it was decided to use aluminium as per metric plans.  I was lucky to have a piece just enough for them.

Using the bandsaw, I proceeded to cut up the slab of aluminium for the steam valve chests (item 21A) and the valve chest cover (item 22).

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20139.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20140.JPG)

And this is what I ended up with.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20141.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on January 20, 2017, 03:41:33 PM
Earlier this week, I had one of those OMG moments.

I was looking at the metric plans and my eye caught a component which I have not noticed before.  It is item 21B and it is a stainless steel spacer which fits between the cylinder and the steam valve chest.  I suspect it is there because the cylinder on the metric plans is made of aluminium.  I checked the imperial plans and as I suspected, it's not there because in that version it has steel cylinders.

The spacer is 3mm thick and now I was worried that if I missed it I am going to have clearance or interference issues.  Went to check on my 3D model and it is also missing there.  So I could turn the mechanism and look at all the linkages to see if there is a problem.  As far as I could see there should not be any problem ( famous last words).  The back eccentric will be 3mm closer to the crankshaft front bearing but still not touching it.

We'll see how it goes.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on January 21, 2017, 03:21:48 PM
Vince
A thought. The setscrew (grub screw) that fixes the back eccentric could be a larger size. Plenty of width on the rear eccentric to do so. There is a significant (for the size of the engine) amount of rotational force which impacts on the screw's ability to hold onto the shaft. After two shows (about 30 hours of running) the screw failed to hold. I tightened it and the hex socket was now rounded from repeated tightening and the screw couldn't be sufficiently torqued to hold. This, of course, screws with the timing.  :lolb:
For some unknown reason (I suspect I had a surplus) the screw is a 3-48. No one at CF had a 3-48 screw.
Of the 2 vendors who would have had it, Microfasteners was not in attendance and Godshall (who just bought American Model Engineering supply) didn't bring any stock. They did offer to bring a few on Sunday but it wasn't worth doing.
I'm about to redrill and tap the hole for a much larger screw.
Just saying.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on January 21, 2017, 05:58:18 PM
Many thanks for the heads up Stan.  I will surely keep that in mind.  I am not looking forward to do those eccentrics.  Still have not figured out how to do them.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: bruedney on January 21, 2017, 07:49:12 PM
Vince my eccentrics have 3 grub screws in each as per the metric plans.

I didn't use the stainless spacer (and I thought it was only 1mm or so thick)

Cheers

Bruce
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on January 21, 2017, 09:54:59 PM
Bruce, you are right.  Just looked at the plans again and the spacer is 0.5 mm thick.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on January 22, 2017, 08:56:56 AM
More work on the valve chests and covers.

The material was milled to size and the mounting holes drilled.  As the thickness of the material is 25mm and just to make sure that the drill does not wander, the drilling operation was first done from one side roughly half way through and then drilled from the other side.  I guess it was extra work but at least all the holes are exactly where I want them.

Then the faces were skimmed.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20142.JPG)

The face which will eventually be the valve chest cover was milled to give the middle a raised portion mostly for decorative reasons.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20143.JPG)

And finally the valve chest and the cover were sawed away from each other.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20144.JPG)

The thickness of the valve chest and the cover were milled to size.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on January 22, 2017, 04:49:49 PM
This evening I milled the pockets in the steam chests.  First it was chain drilled to remove some excess material.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20145.JPG)

Then using a long 6mm endmill the pocket was milled to size.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20146.JPG)

And the finished product.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20147.JPG)

It took longer to think how to do it than actually doing it.  Next I will drill and tap the mounting holes for the valve chests in the cylinders.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Kim on January 22, 2017, 11:03:31 PM
The steam chests are looking good Vince!

It took longer to think how to do it than actually doing it.
Isn't that the case?  :Lol:  I find that to be so true most of the time!   Solving the problem is the hard part.  Doing it is easy, once you've figured it out!  ;D
Kim
Title: Re: Vince's version of the Monitor Steam Engine
Post by: 10KPete on January 23, 2017, 12:39:28 AM
In the late '70s I worked with an old Portugese tool maker. One of his favorite sayings was: "You got no set-up, you got nothing!"

Pretty well summed it up and I've never forgotten Paul. Or his wine or his linguisea. Good man.

Pete
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on January 23, 2017, 06:11:42 AM
Thanks Kim and Pete for taking an interest.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on January 25, 2017, 04:31:39 PM
The steam valve chest mounting holes on the cylinders have been drilled and tapped 3mm.  For this operation I marked the position of the first hole and then used co-ordinate drilling using the DRO.  Still, not trusting myself, I used the valve chest as a template and using a homemade transfer punch from an old 3mm drill, lightly marked the positions for the holes to check for gross errors.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20148.JPG)

Using 3mm threaded rod I made some studs for the valve chest.  I guess that finishes all the work on the cylinders.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20149.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: bruedney on January 25, 2017, 06:05:04 PM
  I guess that finishes all the work on the cylinders.
  :ThumbsUp:

Not quite - you still have the rocker arm outriggers, the inlet ports & exhaust ports to go. :whoohoo:

I would personally recommend moving the inlet to the steam chest body as it makes fiddling with the timing easier.

Cheers

Bruce

Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on January 25, 2017, 09:30:02 PM
Bruce, I haven't decided yet where to put the inlet port.  I suspect that I will leave it till later.

Bye the way, did you try out the modified slide valves that you were doing for the Monitor?

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: bruedney on January 25, 2017, 10:11:00 PM
Hi Vince

Yes my model is built with the standard "castle" style valves and shaft extensions.

They removed a quite obvious "lift" to the shaft

Cheers

Bruce
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on January 29, 2017, 05:25:20 PM
Can somebody tell me if the build photos are still visible??

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Jo on January 29, 2017, 05:55:15 PM
Yes the photos are still there Vince, did you forget to pay your photosuckit fees?   :naughty:

Jo
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on January 29, 2017, 06:33:10 PM
Thanks Jo.  Problem is that I cannot see them from my side.  I am lost.  Do not know what's happening.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on January 29, 2017, 09:57:39 PM
This week it has been a bad week - machining-wise.

It all started with a comedy of errors!

Started work on item 28 which are the Steam Chest Outriggers.  Machined the aluminium to size and started marking to drill some holes.  I had a gut feeling that something was wrong and infact found that I had machined the blanks 6mm too short.  I had misread the drawing.  Blast.  Start again.  Came again to mark the holes for drilling and luckily, before drilling I thought I would compare the marked holes with the mating holes on the steam chest.  They did not align!  This time I misread the height gauge that I used for marking.  Good thing I did not drill the holes.  At least I could save the situation this time round.

This morning I noticed that I could not see the build photos in my thread.  I thought that the private hosting site I use must have an outage.  Infact somebody messaged me that they could not see the photos also.  Later on in the afternoon, same person messaged me again that the photos can be seen again, but the problem is that I still cannot see them. Jo confirmed that she can see them also.  So it must be something from my side but I cannot figure out how to solve this problem.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on January 29, 2017, 10:06:25 PM
Can you see the photos in other peoples threads okay? Yours are showing up fine for me.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on January 30, 2017, 05:30:40 AM
Thanks Chris for the interest.  It's just my photos that I couldn't see.

This morning I tried again and everything is back to normal.  Don't ask me what happened because I do not know. :killcomputer:

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on January 31, 2017, 05:26:32 PM
Compared to last week's disasters, this week seems to be plain sailing (fingers crossed).

Managed to finish the steam chest outriggers.  All holes drilled in the proper positions to match the steam chest and the front part rounded off.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20150.JPG)

Milled the bottom.  Started off with a 12mm endmill but I guess it was a bit blunt as the finish was not so great.  Then I remembered I had a 12mm ball nose mill so used that to do the side milling.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20151.JPG)

Cut the slot with a carbide 3mm slot drill.  Took it slowly with 0.5mm depth of cut for each pass and 2000 RPM which is the maximum for my X3.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20152.JPG)

And the finished products.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20153.JPG)

They ring like a tuning fork.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Tennessee Whiskey on January 31, 2017, 07:18:17 PM
Resembles a tuning fork: great work Vince.

Title: Re: Vince's version of the Monitor Steam Engine
Post by: Don1966 on January 31, 2017, 07:25:31 PM
Looking better all the time Vince and still with you mate.


Don
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on January 31, 2017, 08:47:56 PM
Thanks Cletus and Don for keeping me company.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on January 31, 2017, 10:01:48 PM
Looking great Vince.

Unfortunately for me...it reminds me of my disasters with my build.  ;D
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 01, 2017, 09:50:11 AM
Hi Carl.  Long time no see.

Should we expect a continuation of your Monitor later on this year?

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on February 01, 2017, 10:54:46 AM
Should we expect a continuation of your Monitor later on this year?

I wouldn't bet on it. There's another project that seems to have pushed it out of my heart.
Perhaps later.
And no, I'm not saying what the project is. (You never know when something else comes out that will take its place.)  ;D
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on February 01, 2017, 12:49:02 PM
Vince
The outriggers look great! You're getting down to the final bits and should have a runner soon.
 :drinking-41: :drinking-41: :drinking-41:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 01, 2017, 02:26:42 PM
It feels like that Stan.  Maybe I can get it running before Summer.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 05, 2017, 10:49:29 AM
Not much done this week except doing minor things like studs and bolts for the steam chest outrigger.

Today I finally decided to continue work on the steam chest.  Wanted to fit the valve rod gland nut to the steam chest.  So drilled and reamed 8mm.  Then opened up the hole to 9mm with an slot drill to a depth of 8mm and then tapped 10 X 1mm for the gland nut (or is it bolt).

The finished product.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20154.JPG)

The plans call for a brass bush to be push fit on the inside of the valve chest for the valve rod.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20155.JPG)

I still have not decided if it is worth the trouble of doing it.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 05, 2017, 05:11:12 PM
After having a siesta I took the decision to do the bushes.  They did not take long to do.  I added a 1mm thick shoulder to the bush so that it would locate better.  Next problem.  How do I push it in from the inside of the valve chest?  After some head scratching I thought why not pull it in instead of pushing it in?

Used a 4mm screw with two wide washers and a nut.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20156.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20157.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Don1966 on February 05, 2017, 05:33:04 PM
Every piece is progress Vince and looking good bud.


Don
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 05, 2017, 09:11:09 PM
Thanks Don for keeping me company.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on February 05, 2017, 09:47:22 PM
Next problem.  How do I push it in from the inside of the valve chest?  After some head scratching I thought why not pull it in instead of pushing it in?

Nifty. Good example of thinking beyond the 1st thing that comes to mind.

I'd do the same if I could accomplish the 1st thing.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 06, 2017, 11:09:52 AM
Don't be so hard on yourself Carl.  I'm sure you would have come to the same solution once you put your thinking hat on.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Roger B on February 08, 2017, 11:54:44 AM
Still following along and enjoying  :ThumbsUp:  :ThumbsUp:  :wine1:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 08, 2017, 01:03:55 PM
Thanks Roger

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 09, 2017, 10:54:41 AM
Did the slide valve rod (item 61) and the slide valve rod end (item 60).

For the slide valve rod end I used the same method I used for the piston rod end so not going into details.  The only thing I did differently was when rounding off the end on the rotary table.  This time I used a 1" vise to hold the part on the rotary table.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20158.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20159.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: b.lindsey on February 09, 2017, 02:14:32 PM
Seems I missed a few posts Vince. Things are looking great though, nice to see you still progressing on it.

Bill
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on February 09, 2017, 02:44:28 PM
I went back a couple of pages to see the family shot. Looking good!  :ThumbsUp:

Are you getting close to a run?
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 09, 2017, 05:48:18 PM
Yes Bill.  Progressing slowly.

Thanks Carl.  I am hoping that it might be ready for a run before Summer.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: MJM460 on February 10, 2017, 07:58:18 AM
Hi Vince,

Been following your wonderful work since I joined the forum, just quietly in the background.  There is so much for me to learn from watching your work.  Thank you for including all the detail of your methods.  It is invaluable to beginners such as me.  Great progress in a very interesting engine.

If I may ask a beginners question, I am often puzzled by the criteria for when to ream.  A few posts back, on the steam chest, you said you drilled, then reamed, then opened out with a slot drill before tapping a thread.  What was the advantage of reaming in this sequence, or was it just one of those moments?  Just when you have a few moments.

Meantime please keep up the great posts.  As well as forming your diary, they are incredibly interesting and instructive, thank you.

MJM460
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 10, 2017, 11:38:55 AM
Thank you MJM460 for your post and comments.

I tend to go into a bit of detail for the sake of any beginners watching the log.  When I started with this hobby I did not have any prior machining experience and I learned a lot of things from other peoples posts ( actually still learning ).  So this is a way of giving something back to the hobby.  Also I like to go back on my posts and sometimes I even surprise myself how was it possible to do certain procedures.

Regarding your question, I did that for one particular reason.  I first drilled and reamed 8mm because I needed a good 8mm hole at the bottom for a brass bush.  I then opened up the top of the hole with a 9mm slot drill so that I could tap the top part of the hole 10 x 1mm.  When I used the 9mm slot drill I did not go all the way to the bottom of the hole to keep the 8mm reamed hole at the bottom.  I could have used a 9mm drill instead.

Hope it makes sense.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 10, 2017, 12:01:13 PM
Started work on the Slide Valve Buckle (item 59).

This requires a 6mm square hole in the brass material.  Marked them out and did the first one by drilling a 5mm hole first to remove some waste material and then using a 3mm carbide slot drill made a series of plunge cuts with the quill at 0.1mm intervals.  Sort of nibbling away at the material.

When I came to do the second one I added an extra step.  I drilled a 1.5mm hole at the four corners so that I would have less filing to do at the corners.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20160.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20161.JPG)

I am anticipating a lot of fitting will be required to get these holes to fit in the mating part of the slide valve.  Wish I had a 6mm square broach.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: MJM460 on February 11, 2017, 11:32:22 AM
Thanks Vince,  it makes sense with the 8 mm hole below.

Following the next steps with interest.

MJM460
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 11, 2017, 12:05:05 PM
If you have any other queries, don't hestate to ask

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 12, 2017, 10:43:20 AM
Finished the Slide Valves (item 58).

Like the buckle I machined them both together.  First the top of the valve.  This is were the buckle is inserted.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20162.JPG)

Then turned it over where I needed to machine a 9 X 9mm pocket 3mm deep.  Removed some of the waste material with an 8mm slot drill.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20163.JPG)

Then using the usual 3mm carbide slot drill, I continued to machine the pocket.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20164.JPG)

I then separated the valves and the buckles and using needle files and diamond files I fitted the buckles to the valves.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20165.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20166.JPG)

And a family shot of where I'm at.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20167.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Tennessee Whiskey on February 12, 2017, 10:50:35 AM
And a darn good looking family it is Vince. The contrasting materials are yielding an awesome appearance overall. Beautiful

Cletus
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 12, 2017, 10:58:02 AM
Thanks Cletus.  It does not look bad as it is but most probably I will still end up painting some of it.

Here's a question I have been thinking of asking.  If you look at the frames, they are nearly black.  I did not paint them.  These were laser cut (mild steel) and when I brought them home, I wiped them with an oily rag to protect from rust.  As soon as I did that they turned black.  Does this have anything to do with the laser cutting process??  Anybody else have the same experience?

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: 90LX_Notch on February 12, 2017, 01:56:43 PM
The family shot is beautiful.  The engine is coming along nicely.

-Bob
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 12, 2017, 02:09:41 PM
Thanks Bob.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on February 12, 2017, 02:18:11 PM
Love the family shot. Looks like you're pretty close.

I'm interested in what people say about your question regarding the frames turning black.
Seems very odd to me.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 12, 2017, 02:30:53 PM
Thanks Carl. :ThumbsUp:

Quote
I'm interested in what people say about your question regarding the frames turning black.

Me too.  :thinking:

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Doc on February 12, 2017, 03:04:54 PM
  You are getting close, nice looking family  ;).
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 12, 2017, 04:46:23 PM
Thanks Doc.

Still following your videos on your V8.  Keeping my fingers crossed that you will overcome the problems that you are having.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: fumopuc on February 12, 2017, 05:58:58 PM
Hi Vince, nice family shot.



Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 12, 2017, 08:40:08 PM
Thanks Achim.  Looking forward to an update on your Snow engine.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Tennessee Whiskey on February 13, 2017, 12:27:57 AM
Vince, I'm puzzled on the blackening also, although I think it looks great. Does it rub off on a cloth?

Cletus
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Steamer5 on February 13, 2017, 09:28:23 AM
Hi Vince,
 Nice family shot!

On the blackening, I've seen the same, always put it down to the oil gets into the scale & gives it that wet look. It defiantly helps keep the dreaded rust at bay, but isn't a long term solution with out repeated applications....the interval would seem to be weather dependant! Given were some of us live that could be quite frequent!

Cheers Kerrin

PS Like Zee looking forward to the  :pinkelephant:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 13, 2017, 12:05:43 PM
Quote
Does it rub off on a cloth?

I tried that but does not rub off.  Most probably if I had to rub it with sandpaper it would go but I am not going to do that as personally I don't mind it. I am just curious of what has happened.

Kerrin, when I got the frames from the laser cutters they were shiny like BMS with no scale on them.  I have applied oil to other mild steel parts but never seen this colour change happen.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Steamer5 on February 13, 2017, 12:31:21 PM
Hi Vince,
 Back to the drawing board! Went back in the thread & see I miss read your post.... :old:

Certainly a bit of a mystery!

Cheers Kerrin
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Tennessee Whiskey on February 13, 2017, 09:18:15 PM
That this has got me all tore up. If it is just plain old decent grade carbon plate steel, and the only difference is the lazer cutting, then something is up in Denmark  :lolb: :lolb:. I have seen carbon steel heated and then quenched in the oil from a diesel farm tractor and it produced a "blacker black" than new or clear oil, but never this black without some extra fiddling. I've heard the extra sulphur in the farm grade diesel oil makes a difference  :shrug:. If it don't rub off, then even more intriguing  :thinking: :thinking:

Cletus
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 14, 2017, 05:07:49 PM
I would have liked to start work on the Valve Rockers (item 57) but alas they are still at the laser cutters.

Instead I did some gaskets for the steam valve chest.  As the gasket material I am using is 0.25mm thick I thought it would be a good idea to have them ready for the time when I come to adjust the height of the valve.  At first I was just going to make two but as I need four of them, might as well do all of them at one go.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20168.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 18, 2017, 04:57:45 PM
Still no sign of the Valve Rockers from the laser cutters.  They should have sent me an SMS when they are ready but I have a sneaking suspicion they forgot to send the SMS.  Next week I will give them a visit.

In the meantime I have been preparing the material for the Eccentric Strap (item 53) and the Eccentric Strap Extension (item 54).

Today I started work on the eccentric strap extension.  Bruce had suggested to make this 1mm shorter but I will be doing it as per plans then make any adjustments by varying the lenght of eccentric rod.  I also noticed that if I had to drill the 3mm holes in both items as per plans then they would not fit into each other.

I started by first rounding off the ends on the rotary table.  Usually when I need the rotary table I remove the vice, but today, after a long time, the penny dropped.  I can fit my 6" rotary table without disturbing the 5" milling vice. :facepalm2: :facepalm:  This how they look on my X3 table.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20169.JPG)

Next I drilled the 2mm holes.  These should be 3mm tapped holes but I made them 2mm through holes.  I think the 2mm bolts look better.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20170.JPG)

I then separated both extensions with a hacksaw and faced the end with an end mill.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20171.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Don1966 on February 18, 2017, 05:19:39 PM
Still following the progress Vince and always awesome work bud.

Don
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 18, 2017, 05:31:46 PM
Thanks Don for your kind words.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: fumopuc on February 18, 2017, 07:50:44 PM
Hi Vince,
just seen your Commodore Box, what is hidden in there, an old but famous  C64 computer may be ?
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 18, 2017, 09:10:15 PM
Achim, that was the box of the monitor of a Commodore Amiga computer.  I suspect I still have the monitor and computer somewhere in here.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on February 18, 2017, 09:14:49 PM
Achim, that was the box of the monitor of a Commodore Amiga computer.  I suspect I still have the monitor and computer somewhere in here.

 :lolb: I was wondering the same and suspected as much. Cool.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: b.lindsey on February 19, 2017, 01:59:04 AM
I didn't notice the box at al Vince, too busy admiring the nice looking parts!! Good to catch up with your progress again.

Bill
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 19, 2017, 10:52:08 AM
Thanks Bill and Carl.

This morning I went on a treasure hunt through all the junk in the garage.  Managed to find the Amiga 500 in it's box.  I did not find the monitor.  It could be hidden somewhere else or else I might have given it away with the BBC micro.  Also found a Star dot matrix printer and an external floppy drive.  But the star find was my first personal computer I ever had.  An Acorn Atom computer also still in it's box.  I had bought it as a kit and soldered all the components myself as it was cheaper.  I remember at that time there was also the UK101 computer which did not have an enclosure, so I waited until the Acorn Atom was available as that had an enclosure.

Fond memories.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on February 19, 2017, 12:22:29 PM
Fond memories.

 :ThumbsUp:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: kvom on February 19, 2017, 12:36:28 PM
After having a siesta I took the decision to do the bushes.  They did not take long to do.  I added a 1mm thick shoulder to the bush so that it would locate better.  Next problem.  How do I push it in from the inside of the valve chest?  After some head scratching I thought why not pull it in instead of pushing it in?

Used a 4mm screw with two wide washers and a nut.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20156.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20157.JPG)

Vince

Thinking inside the box!   :thinking:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 19, 2017, 03:55:43 PM
Thanks KVOM.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 20, 2017, 12:02:58 PM
More work on the eccentric strap extensions.  Drilled and tapped 4mm the back of the pieces and then milled the 6mm slot.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20172.JPG)

My 5mm, 5.5mm and 6mm slot drills were to short to cut the slot 12mm deep.  So I used a 5mm endmill instead and then openned the slot up to 6mm.  I used a 6mm shank of an old endmill to know when I have reached the desired width.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20173.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20174.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 21, 2017, 03:15:23 PM
Started work on the Eccentric Straps.  The material had been previously prepared except for the thickness which was left oversize.

Now that the extensions were finished, the material thickness for the eccentric strap was milled with a flycutter until it fitted tightly into the strap extensions.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20175.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20176.JPG)

Next, it was blued and marked out.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20177.JPG)

Started milling for the strap extension.  A little boo-boo here.  I over did it a little but if I use it as the inner eccentric facing the frame, then it should not be visible.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20178.JPG)

Then they were drilled 25mm and bored to 26mm.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20179.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 23, 2017, 05:25:36 PM
Continued work on the eccentric straps.

Made a jig to hold the straps in the rotary table so that I can mill the outside diameter of the straps.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20180.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20181.JPG)

Setup on the rotary table.  Used also the 1" vice to hold together the tongues of the straps.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20182.JPG)

Straps finished.  I removed the 1" vice when getting close to the dimension of the O.D. to see what I am doing.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20183.JPG)

After a little cleanup.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20184.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Tjark on February 23, 2017, 05:43:19 PM
Vince, its looks very good so far.
Very nice work.
I have not a lot of time to  spent in the shop.
We have sold the house and looking for a new place.


    Tjark.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 23, 2017, 05:45:29 PM
Thanks Tjark.

Good luck on finding a new place.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on February 23, 2017, 11:00:28 PM
That came out swell Vince.  :ThumbsUp:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Flyboy Jim on February 24, 2017, 03:22:27 AM
Nice setup for the rotary table...........filed that one away. The eccentric straps came out nice.

Jim
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 24, 2017, 05:36:58 AM
Thanks Carl and Jim.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on February 24, 2017, 01:57:51 PM
Nothing better than a nice set of straps.
Beautiful. Love the setup.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 24, 2017, 04:52:02 PM
Thanks Stan.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 24, 2017, 05:05:04 PM
Mated the eccentric strap and the eccentric strap extension together.  To drill the two 2mm holes, I used the extension strap extension as a template as the holes were already drilled in that.  Used a toolmakers clamp to hold both parts together whilst drilling.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20185.JPG)

Then made some 2mm hardware to bolt them together.  I had a short piece of 2mm threaded rod that I had left over from the Corliss build and used that.  I remember I could not find 2mm threaded rod in the UK for the Corliss build and I managed to get some from France.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20186.JPG)

I think that 2mm hardware looks better than the 3mm that the plans called for.

This week I also managed to get the valve rockers from the laser cutters.  They never sent the promised SMS so I went in person to check, to find that they were ready a week ago.  Today I started working on them.  I made on purpose the two holes and the slot undersize so that I could open them up myself and make a clean hole and slot.  Opening up the slot from 4mm to 5mm.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20187.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Alan Haisley on February 24, 2017, 05:39:06 PM
Vince,
Was the mistake on the strap always on the underside in these latest photos or did you remake the piece or just manage to make it thinner?
Alan :headscratch:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Don1966 on February 24, 2017, 08:29:14 PM
Looking good Vince and always nice work....... :ThumbsUp:

Don
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 24, 2017, 08:48:07 PM
Alan, the mistake is still there. Decided to leave it as it will not be visible. Only I (and the rest of the world now) will know about it.

Thanks Don for having a look. Only a few more parts to do.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Gas_mantle on February 24, 2017, 11:22:30 PM
Looks great Vince, I like the way the radiussed 'shoulder' of the straps blends in seamlessly with the outer profile - that in itself is an acheivement  :)
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 25, 2017, 05:48:09 AM
Thanks Peter. Following your Grasshopper build.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 25, 2017, 05:11:48 PM
Continued work on the valve rockers.  Smoothed the outside edges of the rockers and pushfit a brass blank in the middle 9mm hole.  Then drilled and reamed 6mm the brass bush.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20188.JPG)

The valve rockers finished.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20189.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on February 25, 2017, 05:18:14 PM
They look great Vince.  :ThumbsUp:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 25, 2017, 05:23:36 PM
Thanks Carl.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 26, 2017, 03:45:23 PM
Today, fitted all the parts I had for the cylinders and slide valves.  Spent most of the day polishing and fettling to get the slide valve mechanism to move smoothly.  There is still work to be done as sometimes it tends to stick but decided to stop and see later on how it works when I have the eccentrics finished and then I can judge what needs to be done.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20190.JPG)

I suspect this model will need more air pressure than the Corliss to run.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: scc on February 26, 2017, 08:29:32 PM
Looking good Vince, those straps are beautiful....as are the valve chests.   :ThumbsUp:              Terry
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 26, 2017, 09:37:41 PM
Thanks Terry.  Today, for the first time, I started having doubts about getting this engine to run.  Just a gut feeling.  Good thing that tomorrow I will be going to the UK for some days and I will have a break from the Monitor.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: bruedney on February 26, 2017, 09:54:15 PM
It'll run Vince  :ThumbsUp:

Timing and shaft lengths are interesting things to sort out but once done and the engine has run for a while they seem to run really well.

Cheers

Bruce
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on February 26, 2017, 09:57:02 PM
Today, for the first time, I started having doubts about getting this engine to run.  Just a gut feeling.

You'd be the only one. But I think everyone goes through that at some point.

It'll be great!
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on February 27, 2017, 05:00:31 AM
It will run! I was also concerned that it would need a lot of air.
It started at about 25 pounds. After a few days at Rough and Tumble, 8 hours at American Precision Museum and 2 days at Cabin Fever, it's running at 8-10 pounds. There are many part interactions that need to settle in.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 27, 2017, 09:05:01 AM
Thanks Carl, Bruce and Stan for the encouragement.

Bruce I made the valve rocker to your dimensions so hopefully it will work.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: steamer on February 27, 2017, 11:45:24 AM
Baloney!   It'll run Vince!.....


Dave
Title: Re: Vince's version of the Monitor Steam Engine
Post by: b.lindsey on February 27, 2017, 12:29:56 PM
No doubts in my mind Vince, it will be a fine runner too. Never hurts to take a break though, enjoy your time in the UK.
Bill
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on February 27, 2017, 11:26:30 PM
I am keeping my fingers crossed Bill and Dave.

I thought Spring starts tomorrow but it does not feel like it here (Stansted UK).

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on February 27, 2017, 11:55:36 PM
I am keeping my fingers crossed Bill and Dave.

I thought Spring starts tomorrow but it does not feel like it here (Stansted UK).

Vince

I think we stole your Spring weather over here - normally it is very cold and snowing like crazy this time of year, but the last week or so has been hovering around 60F and sunny. Works for me!
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on March 14, 2017, 10:50:09 AM
I'm back.  After two quick visits to the UK, I got my licence revalidated and I am "good to go" for next Summer.  It felt good to take a short break from the build.

Started work on the Eccentric Rod End (item 56).  The plans call for them to be made from BMS with a bronze bush.  I was going to make them from aluminium with a brass bush but changed my mind and will be making them all brass.  As all the operations are very similar to other rod ends I have previously made I will not be going in too much detail.

This is where I am at.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20191.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on March 14, 2017, 12:55:12 PM
Welcome back. I've laid in a new supply of  :popcorn:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on March 14, 2017, 01:19:27 PM
Carl

When you finish your shop (which is really looking good) and you get your machines sorted then you you will be able to continue on your Monitor and then it would be my turn for  :popcornsmall:.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on March 14, 2017, 04:19:58 PM
This evening I thought I would work some more on the rod ends and actually finished them.  Same operations as the other rod ends and I used again the square material in round collet trick which worked again.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20192.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on March 14, 2017, 05:25:16 PM
Carl

When you finish your shop (which is really looking good) and you get your machines sorted then you you will be able to continue on your Monitor and then it would be my turn for  :popcornsmall: .

Vince
I wonder if he remembers where all the parts went while rearranging the house for the build...
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on March 14, 2017, 05:38:06 PM
Carl

When you finish your shop (which is really looking good) and you get your machines sorted then you you will be able to continue on your Monitor and then it would be my turn for  :popcornsmall: .

Vince
I wonder if he remembers where all the parts went while rearranging the house for the build...

I can't even see my current machines. And I haven't moved them.  :o
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on March 14, 2017, 06:37:54 PM
Carl

When you finish your shop (which is really looking good) and you get your machines sorted then you you will be able to continue on your Monitor and then it would be my turn for  :popcornsmall: .

Vince
I wonder if he remembers where all the parts went while rearranging the house for the build...

I can't even see my current machines. And I haven't moved them.  :o
Huh.


I saw some machines just like yours on ebay last week, seller name was "ZeesElvesHeeHee"....

Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on March 14, 2017, 08:57:36 PM
That's a good one Chris.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: b.lindsey on March 14, 2017, 11:19:34 PM
Welcome back Vince, good to see you making parts again.

Bill
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on March 15, 2017, 08:59:10 PM
Thanks Bill.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: 90LX_Notch on March 15, 2017, 10:40:08 PM
Nice looking parts Vince.  I'm glad to see you back at it.

-Bob
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on March 16, 2017, 06:09:18 AM
Thanks Bob.  Your Tiny is coming along great.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on March 17, 2017, 04:45:20 PM
Eccentric rods finished.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20193.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: bruedney on March 17, 2017, 06:02:11 PM
It'll be running soon  :pinkelephant:

Still quietly following along Vince

Looks great :ThumbsUp:

Cheers

Bruce
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on March 17, 2017, 08:18:18 PM
Outstanding parts. What's left?
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on March 17, 2017, 08:50:56 PM
Thanks Bruce and Stan.  Nearly there.  So what's left?

I need to do two special bolts and a spacer for the eccentric rod ends.  I also need to do two eccentric sheaves.  I usually leave the difficult parts (in my eyes) till the end.

I do not know if anybody has noticed yet.  I have skipped two simple to make parts.  The model will never run without these. 

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on March 17, 2017, 10:24:47 PM
That's a pretty huge match-stick. Did you change scale on us.  :lolb:

Looking great Vince. Can't wait to see the run.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on March 18, 2017, 09:05:55 AM
Infact, when I saw the photo for the first time, I had the same thought.  Huge matchstick.  Don't know why.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Tennessee Whiskey on March 18, 2017, 10:50:13 AM
Kitchen match or pocket match, either way the parts look great Vince

Eric
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Alan Haisley on March 18, 2017, 03:52:33 PM
Really slick looking.  8)
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Don1966 on March 18, 2017, 04:02:08 PM
Nice work Vince she's finally taking shape and be running soon. Still with you buddy!

Don
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on March 18, 2017, 09:37:12 PM
Thanks Eric, Alan and Don for sticking in there with me.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: 10KPete on March 18, 2017, 10:43:41 PM
I've been watching but keeping quiet. No special reason just... :shrug:

Excellent work!

Pete
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on March 19, 2017, 06:42:57 AM
Thanks Pete.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: joe d on March 19, 2017, 11:59:18 AM
Looking good Vince.  I've been keeping quiet too while following along...

Cheers, Joe
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on March 19, 2017, 04:42:00 PM
Thanks Joe.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on March 20, 2017, 05:07:49 PM
Again thanks for everybody who commented.

Today I finished the special bolts for the rod ends.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20194.JPG)

And all the bits and pieces fitted together for a family shot.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20195.JPG)

Next to do the final two items, namely the eccentric sheaves.  Still have to obtain the material for them.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Admiral_dk on March 20, 2017, 07:48:51 PM
Family shot looks great  :ThumbsUp:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on March 21, 2017, 01:41:11 PM
Thanks Admiral_dk

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Gas_mantle on March 21, 2017, 03:10:23 PM
Looks fantastic Vince, one to be proud of  :)

Can't wait to see it running.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on March 21, 2017, 03:58:25 PM
Thanks Gas_Mantle.  Can't wait to put some air in it to see if it runs.  I suspect the linkage between the eccentric and the slide valve is going to give me some headaches to get it to move smoothly but decided not to do more work on it until the eccentric sheaves are completed.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on March 21, 2017, 09:25:36 PM
Nice Nice Nice!

Great photo.  :ThumbsUp: :ThumbsUp:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Dave Otto on March 22, 2017, 12:17:04 AM
Yes, the family shot looks very nice.

I haven't missed a post, just been kind of quiet.
Great progress Vince.

Dave
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on March 22, 2017, 08:26:52 PM
Thanks Carl and Dave.  Glad you are still following my progress.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on March 22, 2017, 09:13:42 PM
Glad you are still following my progress.

Of course we are.  ;D I have to keep my eyes on you.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Steamer5 on March 23, 2017, 06:29:23 AM
Hi Vince,
Bit late but she's looking good!

Like Zee I drop by often & I'm enjoying the journey !

Cheers Kerrin
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on March 23, 2017, 08:35:23 AM
Thanks Kerrin and Carl.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Alan Haisley on March 23, 2017, 06:02:39 PM
Getting close.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on March 25, 2017, 02:17:03 PM
Thanks Alan.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: 90LX_Notch on March 25, 2017, 04:10:27 PM
Very nice Vince.  I'm still following along.

-Bob
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on March 26, 2017, 10:23:36 AM
Thanks Bob for hanging in there.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on March 26, 2017, 10:37:01 AM
Finally decided to get off my lazy backside and yesterday went to buy the material for the last two parts.  XBox is a big distraction for me when a particular new game comes out!!

Got 32mm 316 stainless.  I was lucky that I found the exact diameter I needed which means less machining and less waste.

I will be making the Eccentric Sheaves ( item 52 ) exactly as per plans, i.e. in two parts.  Started work on the back part.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20196.JPG)

Then it was sawed off.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20197.JPG)

Back into the 3 jaw chuck and faced off to size.  I also marked the center as I might need it later on.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20198.JPG)

Items finished.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20199.JPG)

Now to do the front part of the sheaves.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Jo on March 26, 2017, 11:46:58 AM
XBox is a big distraction for me when a particular new game comes out!!

Bad boy  :ShakeHead: Computer games are for when you are too young to know better or too old/infirm to be able to safely make swarf in your workshop.

You are doing well, there is not much more to go. Then you can start thinking about your next engine  ;D

Jo
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on March 26, 2017, 01:36:45 PM
Quote
Computer games are for when you are too young to know better or too old/infirm to be able to safely make swarf in your workshop.

 :'(

Can't help it.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Kim on March 26, 2017, 03:40:25 PM
Quote
Computer games are for when you are too young to know better or too old/infirm to be able to safely make swarf in your workshop.

 :'(

Can't help it.

Vince

Or, video games are for when you are having fun with them!  No need to feel guilt there!  We all have other things that we spend our free time on.  For some people it seems to be 'gardening' when you can go down to the local store and buy perfectly good produce.   :stickpoke:  Makes no sense to me, but I'm fine with them doing what makes them happy.  What every floats your boat!

Kim
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Jo on March 26, 2017, 03:55:42 PM

Or, video games are for when you are having fun with them!  No need to feel guilt there!  We all have other things that we spend our free time on.  For some people it seems to be 'gardening' when you can go down to the local store and buy perfectly good produce.   :stickpoke:  Makes no sense to me,

:lolb: Another person who believes in eating mass produced flavour/smell free (but plenty of added chemicals  :paranoia: ) food.

Computer games have their place on a freezing cold, windy, snow winters night when you forgot to put the heating on it the workshop  :Doh: But these days and evenings of glorious sun who wants to be stuck inside twiddling your thumbs in front of a game when you can be out in the garden  :wine1:

Jo
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Kim on March 26, 2017, 04:25:55 PM
:lolb: Another person who believes in eating mass produced flavour/smell free (but plenty of added chemicals  :paranoia: ) food.

Computer games have their place on a freezing cold, windy, snow winters night when you forgot to put the heating on it the workshop  :Doh: But these days and evenings of glorious sun who wants to be stuck inside twiddling your thumbs in front of a game when you can be out in the garden  :wine1:
That's a lot of work to go to for a little flavor.   I can get organic produce many places, and very flavorful seasonal vegetables from our local farmers markets.  But you have to LIKE playing in the dirt to make it worth growing your own in this day and age.  I'm very happy that you enjoy it!  Knock yourself out!  I just don't happen to be one of those people.  I'm very happy to pay someone else to grow my veggies if it means I don't have to do it myself! :agree:

You can have your thread back now Vince (whenever your done playing your XBox of course :)).
Kim
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on March 26, 2017, 05:25:27 PM
I'm very happy to pay someone else to grow my veggies if it means I don't have to do it myself!

Which is why I'm happy T loves to garden and I get to reap the rewards.

You can have your thread back now Vince (whenever your done playing your XBox of course

Vince may be too busy playing to notice.  ;D
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Don1966 on March 26, 2017, 06:21:15 PM
Still with you Vince and you are allowed to take a break here and there.

Don
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on March 26, 2017, 08:52:31 PM
Thanks guys for all the comments.  Much appreciated.

Regarding video games, I am not ashamed to say that I love them, especially the graphics intensive ones.  Apart from that, I feel that it helps me practice my eye to hand coordination, reflexes and problem solving techniques.  Having said that, I keep away from online gaming as I would for sure be trashed by a 10 year old.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on March 27, 2017, 10:34:04 AM
Started work on the front part of the eccentric sheaves.  I have been thinking about this for a very long time.  We'll see how it goes.

Chucked a piece of stainless and turned the shoulder where the eccentric strap sits.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20200.JPG)

Then using various slot drills and the lathe on its slowest speed, I cut a 14mm hole.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20201.JPG)

Then using a boring bar I opened up the hole to 19mm and 3mm deep.  The rear part I did yesterday will fit into this hole.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20202.JPG)

Eccentric strap used for a trial fit.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20203.JPG)

And the rear part also inserted.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20204.JPG)

I made the part to have a little axial play on the sheave.  I can always remove the axial play later on.

The rear part just plugs in the front part.  It is not a loose fit. I suspect that with the engine running it might come loose.  I was thinking of maybe locking both parts together with a 3mm countersunk screw.  Chris did his sheave in a different way but Bruce and Stan made them as per plans.  Did you have problems with this?

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on March 27, 2017, 02:02:07 PM
Vince
No issues at all doing them to the plans. Also, given the number of interconnected parts from the valve to the sheaves, a bit of axial play is probably a good thing. Mine both have a bit and the engine runs nicely at under 10 pounds of air.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on March 27, 2017, 02:08:00 PM
Thanks for the info Stan.  I"ll forget the 3mm countersunk screw for now.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on March 28, 2017, 05:18:15 PM
Drilled and reamed the 10mm hole with a 4mm offset from the center.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20205.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20206.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on March 29, 2017, 10:44:16 AM
Still working on the eccentric sheaves.

I have a question about fixing the sheave to the crankshaft.  The plans call for three 3mm grub screws spaced 45 degrees apart as shown in the image below.  If I use four 3mm grub screws spaced at 90 degrees would it make it better?

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on March 29, 2017, 11:12:55 AM
Still working on the eccentric sheaves.

I have a question about fixing the sheave to the crankshaft.  The plans call for three 3mm grub screws spaced 45 degrees apart as shown in the image below.  If I use four 3mm grub screws spaced at 90 degrees would it make it better?

Vince

I'd also be interested in knowing if people put a flat(s) on the crankshaft for the grub screws.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: MJM460 on March 29, 2017, 12:35:54 PM
My experience is that the grub screws raise a little dimple on the shaft when tightened.  This makes it very difficult to later remove the eccentric without causing damage, but not tight enough to allow you to keep the grub screw for another location. The flats effectively make enough room for the dimple so solve the problem.  Lots of articles confirm this experience.  I always file small flats.

I can only download the first drawing for some reason, but the grub screws appear very close together on the shaft.  May be an advantage to spacing them further as you suggest.  I wonder if putting them on one side as shown holds the eccentric more firmly to one side, than would say two at 180 deg?  So perhaps three at 60deg?  I am interested to hear what others think.

MJM460
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on March 29, 2017, 01:32:44 PM
Vince
I was concerned that the set screws(grub screws) would dimple the shaft so I didn't really tighten down on them too hard. Bad idea. At Cabin Fever, after running for an hour, the eccentric slipped and the timing went down the tubes.
When I got home, I disassembled and filed flats. Highly recommended.
Also switched from the standard cup-point to flat point. Better on a filed flat.
Don't know about your suppliers but McMaster-Carr has them in metric and imperial. Alloy steel and stainless steel.
I did have a fleeting thought to use extended point set screws which are designed to lock into a mating hole on the shaft.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: bruedney on March 29, 2017, 07:02:00 PM
I used the 3 at 45deg with no flats - no problems. I suppose it depends on the load. My valve rods were binding due to the tendency to tip with only one end supported hence my redesign of valves and rods to allow for support at both side of the steam chest.

I also drilled and tapped the 2 halves and added a 3mm screw just to make sure the loctite didn't let go. I cut the heads off and filed flat

Looking good though Vince

Cheers
Bruce
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on March 29, 2017, 09:32:37 PM
Thanks gents for the comments and suggestions.

I have to think about it.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: 10KPete on March 29, 2017, 09:42:50 PM
Where possible, I like to turn a shallow groove around the shaft in the way of the set screws. Not deep, but enough that any burr raised by the screw won't interfere with the bore of the (insert item name here). The item can be positioned at any rotation and the groove takes care of any burrs.

Pete
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on March 29, 2017, 10:29:29 PM
Good one, Pete.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on March 30, 2017, 12:06:53 AM
Where possible, I like to turn a shallow groove around the shaft in the way of the set screws. Not deep, but enough that any burr raised by the screw won't interfere with the bore of the (insert item name here). The item can be positioned at any rotation and the groove takes care of any burrs.

Nice idea! Thanks.  :ThumbsUp:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: b.lindsey on March 30, 2017, 01:44:23 AM
Looks like you are in the home stretch Vince. That last family shot looks terrific too!!  Looking forward to seeing it run.

Bill
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Flyboy Jim on March 30, 2017, 03:46:56 AM
Where possible, I like to turn a shallow groove around the shaft in the way of the set screws. Not deep, but enough that any burr raised by the screw won't interfere with the bore of the (insert item name here). The item can be positioned at any rotation and the groove takes care of any burrs.

Pete

Well geeez...........file that in the "why didn't I think of that" category! Good one Pete.  :ThumbsUp:

Jim
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on March 30, 2017, 10:55:26 AM
Good idea Pete.  Have to keep it in mind.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 01, 2017, 06:01:36 PM
More work on the eccentric sheaves.

With the help of a 10 mm rod in the tailstock I put the sheave in the 4 jaw chuck and carefully tightened the jaws.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20207.JPG)

Made a quick check on runout.  Showing 0.1mm.  Good enough for me as the next operation does not require lots of accuracy.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20208.JPG)

Started machining the shoulder around the 10mm hole.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20209.JPG)

Both of them finished.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20210.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20211.JPG)

Next for the final operation which will be drilling and tapping the three 3mm holes for the grub screws.  Decided to make them as per plans; i.e. with 45 degree spacing.  Realised that doing this will not be as simple as I anticipated.  Will have to sleep on it.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on April 01, 2017, 07:45:39 PM
 :ThumbsUp:

Almost there!
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on April 02, 2017, 01:07:55 AM
The suspense is killing us
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Don1966 on April 02, 2017, 01:22:21 AM
The eccentrics and sheaves turned out great Vince of coarse I expected no less buddy. Still with you and enjoying it....... :ThumbsUp:

Don
Title: Re: Vince's version of the Monitor Steam Engine
Post by: b.lindsey on April 02, 2017, 01:38:54 AM
Beautiful looking assemblies Vince. Things should be getting close now !!

Bill
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 02, 2017, 05:33:28 PM
Thanks guys for keeping me company.

So today I took the dividing head out to drill the holes for the grub screws.  Drilled the first one and started tapping the holes.  The taps were not cutting too well.  I guess the material got work hardened when drilling and the taps are not sharp anymore because on the last hole I broke a tap.  Disaster, as I could not get the broken part out.

After a siesta I went back to have another look at the situation.  I could make a new part or use the one I had with two grub screws.

Eventually I found I had a small carbide burr with a taper shape.  Let's give it a try.  It actually worked as it started breaking up the broken tap in the hole.  With a little patience and a hardened 2mm pin punch I managed to chip it all out.

Phew.  Managed to save the part.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on April 02, 2017, 07:03:34 PM
Phew.  Managed to save the part.

 :pinkelephant:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 03, 2017, 05:04:19 PM
Went shopping for a new 3mm tap set.  The one I damaged yesterday was actually the first set of taps I ever bought.

I had a choice of either a Spanish set or a Dormer made in Brazil.  When I was told of the difference in price between both sets I quickly decided on the Spanish made set.  The other one cost exactly twice as much.  Also got a couple of Dormer 2.5mm drills to go with the new taps.

Did the three tapped holes on the second eccentric sheave.  No problems encountered.  Used a 10mm threaded rod as a mandrel to hold the part in the 3 jaw chuck of the dividing head.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20212.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20213.JPG)

So I guess now I need to time it, but first I need to clear the table from all the clutter before trying to figure out how to time it.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: b.lindsey on April 03, 2017, 07:10:39 PM
Don't you just hate when that happens!!  Nice that you saved the part though. Sometimes it just takes some patience.

Bill
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 03, 2017, 08:58:05 PM
Yes Bill.  Really hate it but I guess it is part of the game.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on April 03, 2017, 11:14:39 PM
Really hate it but I guess it is part of the game.

Gotta have the low points in order to know the high points and enjoy them.  :ThumbsUp:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Tennessee Whiskey on April 03, 2017, 11:52:32 PM
Nice save Vince. I was told by an old machinist: " Even good machinists make mistakes, but the really good ones know how to fix them " . Won't be long now.

Eric
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 06, 2017, 05:06:28 PM
Thanks Carl and Eric for the comments.

I think I have timed it but still not sure if it is correct as I have not tried it yet.  Finally decided where to put the inlet ports.  I am going to do them as per plans, i.e. in the steam chest cover.  I made two temporary air inlet adaptors and tomorrow I will drill the steam chest covers and give it some air and see what happens.  The mechanism is turning freely with no tight spots.

Fingers crossed!!

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: 90LX_Notch on April 06, 2017, 05:13:48 PM
Really hate it but I guess it is part of the game.

Gotta have the low points in order to know the high points and enjoy them.  :ThumbsUp:

That is the truth.

Victory "tastes" better if you really have to work for it.

-Bob
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 07, 2017, 03:46:54 PM
Thanks Bob.

Breaking News!!

It LIVES!!   :pinkelephant: :pinkelephant: :cartwheel: :cartwheel: :wine1: :cheers: :DrinkPint:

Video still uploading.  Watch this space.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 07, 2017, 04:26:20 PM
OK guys, here it is.

[youtube1]https://www.youtube.com/watch?v=Mn3NRAKqTIw[/youtube1]

It was ready this morning but did not have the courage to try it out.  This evening I gave it some air and it started immediately.  I was expecting to have to fiddle with it.

It runs better than I ever expected.  There are only gaskets on the steam chest.  Still need to do the rest.  Also no rings on the pistons.  I think I will be using graphite string that a forum member kindly brought over when he came to visit.

A happy day.  Now to start slowly on the finishing touches which usually take forever.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: tvoght on April 07, 2017, 04:38:18 PM
Smooth as silk. I'm very impressed.

--Tim
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Jo on April 07, 2017, 05:03:27 PM
 8) Very nice.

Jo
Title: Re: Vince's version of the Monitor Steam Engine
Post by: 10KPete on April 07, 2017, 05:09:51 PM
Beautiful, Vince!   :whoohoo: :pinkelephant: :pinkelephant:

Pete
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on April 07, 2017, 05:18:13 PM
That is running nice!   :whoohoo:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Flyboy Jim on April 07, 2017, 05:20:56 PM
Very nice looking and a nice slow runner Vince. Well done.  :ThumbsUp: I love seeing these engines running.

Jim
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on April 07, 2017, 05:25:46 PM
Great! Stupendous! Outstanding! Great runner.
 :ThumbsUp:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: bruedney on April 07, 2017, 07:39:34 PM
Congratulations Vince. That runs so much better than mine did.

You should be rightfully proud.

Welcome to the Monitor club

Cheers

Bruce
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Nick_G on April 07, 2017, 07:56:06 PM
.
That's totally ace.  :) :ThumbsUp:

Nick
Title: Re: Vince's version of the Monitor Steam Engine
Post by: fumopuc on April 07, 2017, 08:34:13 PM
Hi Vince, a very smooth motion. Congratulations for this runner. Have fun during the finishing.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 07, 2017, 09:32:21 PM
Gee, thanks guys (that includes you Jo) for the compliments.  I seem to have good luck with these model steam engines.  It is true that they are more forgiving than I.C. model engines.

Now that I know that this thing actually works, I can start with the bling process.  One thing I would like to add is a shut-off valve like I did in the Corliss.  With this I can control the speed of the model better.  As it is, with hardly any pressure reading it runs fast.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Gas_mantle on April 07, 2017, 09:36:20 PM
Looks and sounds great Vince - one to be proud of  :)
Title: Re: Vince's version of the Monitor Steam Engine
Post by: 90LX_Notch on April 07, 2017, 09:52:06 PM
Wow Vince, it runs beautifully.  Very well done.

-Bob
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Don1966 on April 07, 2017, 09:55:55 PM
Awesome Vince and she's nice and quiet. The whole think looks a treat buddy....... :praise2:


Don
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on April 07, 2017, 10:21:03 PM
A happy day.

 :pinkelephant: :pinkelephant: :pinkelephant:

Awesome.

I am envious of the feeling you are enjoying right now.

Fantastic.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Tennessee Whiskey on April 08, 2017, 12:09:33 AM
Wow, I pop up the thread and see I'm two pages behind from this morning and now I know why. That is smooth as a snakes belly Vince. Awesome job.

Eric
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Maryak on April 08, 2017, 12:37:25 AM
BZ Vince :ThumbsUp: :ThumbsUp:

Regards
Bob
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Steamer5 on April 08, 2017, 06:33:58 AM
Very nice Vince!

Very well done.

Cheers Kerrin
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Alan Haisley on April 08, 2017, 03:13:03 PM
We have a WINNUH!
A real beauty, Vince, so fascinating to watch run, especially when run slowly.
Alan
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Kim on April 08, 2017, 05:36:02 PM
Congratulations on a great runner Vince!  It's always exciting to see them going for the first time.
You have every right to feel quite proud of this!
Kim
Title: Re: Vince's version of the Monitor Steam Engine
Post by: gbritnell on April 08, 2017, 07:20:56 PM
Outstanding job Vince! It runs great! Congrats on a job well done.
gbritnell
Title: Re: Vince's version of the Monitor Steam Engine
Post by: b.lindsey on April 08, 2017, 08:00:14 PM
That is stunning Vince. I am late to the congratulatory party as well having been out in the shop this morning myself. It sure does run smooth and the finish is just outstanding too!!

Bill
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 08, 2017, 09:23:57 PM
Thanks guys.  Today just played around with the Monitor just watching her going round and round.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: kvom on April 08, 2017, 11:33:16 PM
 Belated congratulation.   :ThumbsUp:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Tjark on April 09, 2017, 12:04:21 AM
Vince,

This is very impressive, the engine is running very smooth.


      Tjark
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Dave Otto on April 09, 2017, 01:48:29 AM
Wow, very nice Vince!

As Eric said I pop in to check up on you and there are a couple pages of comments.
Congrats!


Dave
Title: Re: Vince's version of the Monitor Steam Engine
Post by: MJM460 on April 09, 2017, 07:18:03 AM
Congratulations Vince.

  I have really enjoyed following your wonderfully informative and interesting posts, and this is a great  milestone.  Clearly already a successful project.

MJM460
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 10, 2017, 10:56:26 AM
Again, thanks guys.  After playing around with the Monitor, it was time to continue with the build.

Made the four bearing oilcups (item 65).

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20214.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 12, 2017, 09:15:28 AM
Next to be made was the exhaust plumbing.  I did not follow the plans here and made individual open ended exhaust for each cylinder.  It is made from brass and 6mm copper pipe.  Also made the gaskets for them.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20215.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20216.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20217.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20218.JPG)

I have not fixed them together yet. I will do it after the painting.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 13, 2017, 03:59:43 PM
Next step is to replace the allen head bolts on the eccentric sheave with grub screws as per plans.  A guy I know left me a comment on my You Tube channel which made me think.

What if instead of grub screws I use 3mm square headed bolts?  So I made three just to see how they look.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20219.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20220.JPG)

They don't look too bad but the jury is still out.  What do you think guys?

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on April 13, 2017, 04:52:31 PM
I think they look too heavy, visually. Seems to "screw" with the scale of the eccentrics. My 2
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Flyboy Jim on April 13, 2017, 05:07:56 PM
I think they look too heavy, visually. Seems to "screw" with the scale of the eccentrics. My 2

I agree that the look a little "over stated". How would they have been done on the original full size engine?

Jim
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on April 13, 2017, 05:30:48 PM
Maybe try taking the heads down a bit narrower? I've seen ones like that where the heads are width of the thread diameter, look a little better that way.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 13, 2017, 09:33:35 PM
Thanks Stan, Jim and Chris for the comments.

The bolts have a 3mm thread.  The heads are 4mm square and the thickness of the square head is 3mm.

Quote
I've seen ones like that where the heads are width of the thread diameter, look a little better that way.

Chris, do you mean reduce the thickness of the head from 3mm to 1.5mm?

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: b.lindsey on April 14, 2017, 12:14:45 AM
Maybe I missed it...Why are they spaced so closely together? Just curious.

Bill
Title: Re: Vince's version of the Monitor Steam Engine
Post by: 10KPete on April 14, 2017, 12:43:10 AM
All the old square head setscrews I've seen had heads close to the thread diameter. Look in McMaster-Carr.

Pete
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on April 14, 2017, 01:01:10 AM
Thanks Stan, Jim and Chris for the comments.

The bolts have a 3mm thread.  The heads are 4mm square and the thickness of the square head is 3mm.

Quote
I've seen ones like that where the heads are width of the thread diameter, look a little better that way.

Chris, do you mean reduce the thickness of the head from 3mm to 1.5mm?

Vince
I was thinking making the heads skinnier, the flats close to the same as the outer diameter of the thread - at least in the pictures it looks like the heads are fatter than the thread, though maybe thats just a shadow that I am seeing.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Flyboy Jim on April 14, 2017, 03:15:41 AM
If I read the specs right of the McMaster-Carr ones: https://www.mcmaster.com/#square-head-set-screws/=176qg56 it would look like, in your case, 3mm width and 2.5mm height would be about right. I take it that this style of set screw would of been the predecessor to the allen head set screws we use nowadays? They do look pretty nice.

Jim
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 14, 2017, 08:22:41 AM
Thanks guys for all the tips.

Bill, the tapped holes for the screws are as per plans.  They are spaced by 45 degrees.

I had a look at the mcmaster link Jim provided and had a look at the drawing of a 6mm square head screw.  As you guys said, the head size is the same as the size od the thread.  Nice.  Learned something new.

So I will redo them or just use grub screws instead.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 14, 2017, 10:39:19 AM
Back from the drawing board and remade one screw with a 3mm square head.  This time I did not do it from scratch but used a 3mm stainless hex head bolt and milled the head square.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20221.JPG)

I think it looks better.  What do you think?

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Steamer5 on April 14, 2017, 11:10:16 AM
Hi Vince,
 To my eye, that looks much better. Seems much better proportioned.

Cheers Kerrin
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on April 14, 2017, 12:44:07 PM
Hi Vince,
 To my eye, that looks much better. Seems much better proportioned.

Cheers Kerrin
I agree.  :ThumbsUp:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: 10KPete on April 14, 2017, 12:59:54 PM
 :ThumbsUp: :ThumbsUp:

Pete
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Flyboy Jim on April 14, 2017, 02:01:11 PM
Very well proportioned Vince. They blend in with their surroundings and look like they belong there.  :ThumbsUp:

Jim
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Don1966 on April 14, 2017, 03:21:52 PM
You got it Vince... :ThumbsUp:

Don
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 15, 2017, 03:31:44 PM
Thanks guys for your precious input. Much appreciated.  Did all of them plus an extra one as an offering to the shop gremlin.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20222.JPG)

I have to admit that now it looks so much better.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Flyboy Jim on April 15, 2017, 03:47:51 PM
Thanks guys for your precious input. Much appreciated.  Did all of them plus an extra one as an offering to the shop gremlin.

I have to admit that now it looks so much better.

Vince

Those look terrific Vince.  :ThumbsUp: They blend in nicely with their surroundings.

Jim
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 15, 2017, 04:22:45 PM
Thanks Jim.

Thought I would do something to the backend of the crankshaft.  I real life, there would be a coupling for the propeller shaft at the end of the crankshaft.  I have some spare material that I used for the eccentric sheaves and thought I would make one.  I have googled some images to give me an idea.

This time, before I cut any metal, I thought I would make a drawing and see what you guys think and what I can change.

The .jpg and .pdf are below.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on April 15, 2017, 10:52:50 PM
 :whoohoo: Looking great Vince.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: b.lindsey on April 16, 2017, 12:20:34 AM
The screws are perfect now Vince. Looks much better!!

Bill
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on April 16, 2017, 01:34:46 AM
Vince
The new screws are spot on.  :ThumbsUp:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: MJM460 on April 16, 2017, 10:24:33 AM
Hi Vince,

I like the screws, they really look like a logical and practical predecessor to the modern socket head.

Also the coupling half looks spot on.  I am more familiar with couplings for industrial machines than ships, but it looks good to me.

MJM460
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 16, 2017, 10:50:08 AM
Thanks MJM460 for the thumbs up for the coupling.  I think I will do it and see how it looks.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 18, 2017, 10:33:32 AM
I did the coupling and it doesn't look too bad.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20223.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20224.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: MJM460 on April 18, 2017, 12:54:31 PM

Hi Vince,

The metal version really looks great and complements your great engine. 

Now you need the other coupling half, the spacer, and the prop shaft.

MJM460
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on April 18, 2017, 02:32:10 PM
...and the rest of the boat.  :lolb:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: kvom on April 18, 2017, 02:46:06 PM
Or follow Stan's lead and hook it up to a sewing machine.   ;D
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 18, 2017, 08:36:19 PM
Quote
...and the rest of the boat.  :lolb:

...and don't forget the crew.   :stickpoke:

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on April 18, 2017, 10:43:08 PM
I did the coupling and it doesn't look too bad.

Yeah right.  :ShakeHead:

Looks great!
Title: Re: Vince's version of the Monitor Steam Engine
Post by: b.lindsey on April 19, 2017, 01:21:21 AM
That looks very nice Vince. A simple part compared to many others on the engine, but sure adds a very nice detail!! Really nice finish on it too.

Bill
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 20, 2017, 09:25:43 AM
Thanks Carl and Bill for the interest.

I am at the moment waiting for some things I have ordered from Germany to arrive.  In the meantime I have been playing with Fusion 360 on some colour schemes for the Monitor just to get an idea of how it might look.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on May 03, 2017, 02:11:36 PM
Hardly anything done.

Made some bolts which will will look like studs and nuts for the cylinder caps.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20225.JPG)

Today I received the things I was waiting for from Germany.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20226.JPG)

Cute little things.  They should fit 4mm copper pipe, although the angle fittings already look too small for the 4mm copper pipe that I already have.  Let's see what I can come up for the inlet plumbing with these.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: bruedney on May 03, 2017, 08:04:37 PM
Hi Vince

I like option 2 for the paint

Can you post a link for the supplier of that valve?

Cheers

Bruce
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on May 03, 2017, 09:26:07 PM
Bruce, I got the valve from here:

https://www.bengs-modellbau.de/

It is also available from here:

http://www.ts-modelldampfmaschinen.de/home.html

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on May 04, 2017, 12:52:06 AM
I think I'd go for option 2 as well.

Not that it really matters. The model looks really really good!
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on May 07, 2017, 04:47:33 PM
Thanks Carl.

Not much time in the shop.  Re-tiling the front drive of the house and changing the house from Winter mode to Summer mode.  I have to do these before the end of this month before I go to the UK.

Today I had some free time and drew the "T" piece for the inlet plumbing. I decided to try and fabricate it and used the globe valve for some reference dimensions.  Hope it looks OK.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on May 11, 2017, 05:29:01 PM
Started work on the "T" piece.

Used a 16mm brass rod for it and carved out the middle part using a parting tool I last used to make the Kiwi crankshaft.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20227.JPG)

Cleaned it up using a left hand and right hand turning tool.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20228.JPG)

Left a centre mark on both flanges for a later operation.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20229.JPG)

Marked the centre of the middle part with the help of an edge finder.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20230.JPG)

Using a 6mm slot drill cut the hole for the other part of the "T" piece.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20231.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20232.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on May 11, 2017, 08:38:34 PM
Interesting parting tool, does that double shape let you go in then either direction, left or right?
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on May 11, 2017, 08:52:49 PM
Yes Chris.  That's the idea.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on May 12, 2017, 04:13:38 PM
Finished the "T" piece.  At first I was going to soft solder the two pieces together but I suspected that the solder would go everywhere and make it hard to clean up.  So I made the parts to be a press fit together and added some super glue for good measure.  We'll see in the future if this was a bad idea or not.

Drilled all the required holes on the flanges using the center mark I had left earlier on as the center reference.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20233.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20234.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20235.JPG)

The flange bolt and nuts were a bit fiddly to fit but managed at the end.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on May 12, 2017, 04:25:11 PM
That looks great! Goes very well with the valve.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on May 12, 2017, 04:27:53 PM
Thanks Chris.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Steamer5 on May 13, 2017, 01:23:55 AM
Very nice Vince.....really looks the part

Cheers Kerrin
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on May 13, 2017, 05:15:05 AM
Thanks Kerrin.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: kvom on May 13, 2017, 01:06:32 PM
X2 on the press fit with glue.  I did the same with the dummy pump output on my current engine.  Much neater.   :ThumbsUp:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on May 23, 2017, 04:24:21 PM
Progress on the Monitor has been at a standstill for a while but today I managed to do some other items for the inlet plumbing.

I managed to bend a couple of pieces of 4mm soft copper tubing with a bend radius of 6mm. This was done manually around a 12mm brass rod as I do not have a miniature tube bender.  Maybe I should make one someday.

Also made another flange and gasket which will fit to the globe valve and use it to connect to the compressor.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20236.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on May 27, 2017, 04:22:19 PM
I made the last two parts of this build, namely, the steam inlet glands (item 23) which bolt to the steam chest covers.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20237.JPG)

I made them as per plans except that I changed the orientation of the bolt holes and also made the holes 2mm instead of 2.5mm.

You might be asking why I haven't drilled the center hole of the glands for the 4mm copper pipe.  The reason is that I won't be working on the model for a while as I will be going to the UK shortly just like last year.  If I had drilled the hole now, I would find it oxidised by the time I come to fit the pipe later on.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Don1966 on May 28, 2017, 04:33:35 PM
Still with you Vince and I see some nice looking parts coming together. Looks like your classing her up.....; :ThumbsUp:


 :drinking-41:
Don
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on May 28, 2017, 10:19:29 PM
Thanks Don for hanging in there.  See you again after Summer.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on May 28, 2017, 11:38:28 PM
Whew. Part of the problem in checking in just for the last few posts...I miss a lot. And I missed a lot!

Nice!

Enjoy your trip. I wish I could get to the UK sometime soon. It's been a couple of years and it's one of my favorite destinations.

Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on October 12, 2017, 09:55:42 AM
Hi all.  I'm back. :)

Actually, I have been here for twelve days but still not found enough motivation to finish off the Monitor. :'(

Sometimes, I sit in front of it and just stare at it.  Hopefully I can find a good reason to finally finish it.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Jo on October 12, 2017, 09:59:37 AM
Welcome back Vince  :)

It is no good  :ShakeHead: once you have polished and oiled all of your machine tools you have to get on and use them or they will feel unloved.

Making swarf feels good... pick a little easy bit of the Monitor and go make it and I am sure you will feel the need again  :ThumbsUp:.

Jo
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on October 12, 2017, 10:16:35 AM
Thanks Jo for the encouragement.

I need something like that to get me off my lazy back side.

All that needs to be finished is the inlet plumbing.  All the parts are there and I just need to cut the copper pipes to length and assemble them.  And then there is the painting which I never look forward to do.  Maybe that's what is holding me up or the thought of the next model which might not be an engine.  Who knows. We'll see.

Congrats on your future retirement.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Jim Nic on October 12, 2017, 10:19:09 AM
Good to see you back Vince.
I really love to see your working so please don't say you're going to finish the Monitor by staring at it telepathically  :Lol:  (I don't have much success with that method myself.)
Jim
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Jo on October 12, 2017, 12:14:07 PM
Congrats on your future retirement.

The cat is not in the bag yet  :(. I can forsee a lot of screeching and claws being flung before I succeed as the early retirements redundancies are only for the production people, not Analysts like me  :-\.

But my generous nature means I am concerned that some youngster may loose their job and someone who really needs it, who may have a family to support and their entire future in front of them might not have a job :'( and I believe that could possibly do mine. After all I have spent 4 months this year on waiting time with nothing to do and any one can do that  :naughty: and a further four months recovering from Surus's escape  ::).

Jo
Title: Re: Vince's version of the Monitor Steam Engine
Post by: b.lindsey on October 12, 2017, 12:28:48 PM
Good to see you back Vince!!

Bill
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Ramon Wilson on October 12, 2017, 12:53:57 PM
Hi all.  I'm back. :)

Actually, I have been here for twelve days but still not found enough motivation to finish off the Monitor. :'(

Sometimes, I sit in front of it and just stare at it.  Hopefully I can find a good reason to finally finish it.

Vince

Hello Vince,

Sorry to hear of your lack of motivation but for what it's worth and if it helps I've been the same for the past year.

I began to think that I really would not find the interest to machine again but a few weeks ago I had need to turn some ali for a non modelling interest. I thought that as I had the lathe covered in ali swarf I would 'just' turn the front ends of two crank cases I had roughed out quite along while back. Like you I had constantly looked at them but with real lack of desire to see them progress. Well having turned the front ends suddenly the urge was there - one small bit lead to another and, as you can see, the next thing the cases were finished along with the backplate's and venturi's  :o

(https://lh3.googleusercontent.com/8cX3NOjVSi3Bt3AfO-DMBHYRXcAoPSfdYyBVSzW3iPQ2cz7pObndQPLXZUaX40wEQCxenvwf0ItrvA4k_Kgt1Svr1ZJ6Z6KvCl6OrndoR2OXa2KZN35M9XPvlLZ_NNsbTvhZoWI3rPLcvc-5Uf-DFO2O0AMiJRTEYWvQcpbkdkDL1u6-54m3gqqf71HtExm_Wl0XPieudAaaHZVra3BW_q0RxA0_WfOvPhcl6qAHQF9iht29KvXrN1WiFv1ETzUxQPtr9T9GPkWbEn6xbkCWwNs9qMjhXyISHAnwg2Cs9wbnmcfW-2B0EimUqpTYUdWpp-D0mhpRXsUPvcreN9xAnAOPTQpnJxEd1rjWslbI_PDCNC2hi0AnHmnBvalDeoo8us829tssUfg7CO4ReLnQqKp8DsQR5CMc8cfFC7xDuRxmsaeNCz8-838CPH2lRbPAa5TaccZwjzOSO916iJq8Evx6XNL1ia9QOgzj8uGhQ-DOSDx55nxUGCZK324S_P7SFb7WuVeguutBo2QfFz-BpCgbo0c4_mW7rg7m-x-FY7BPTwg_WCv2-Ic3yT62ZJVjUbOGTnsupVKJPK2PjhCr3uBzLpscjhrsnYS2YOIzP-A=w1216-h912-no)

That has lead to progressing the Mc'Onie to running stage along with a major start on a long languishing Corliss project. I still have a 'plastic interest' but it has come as such a pleasant surprise to find my machining interests were just dormant and not as dead as I thought.

So - don't despair - we all need a break from things at times and despite what you may feel suddenly, out of nowhere, comes the old desire and the fire is re-kindled.

Apart from your lack of motivation hope you are well and that you're enjoying that 'retirement'

Kind regards - Ramon

Title: Re: Vince's version of the Monitor Steam Engine
Post by: Hugh Currin on October 12, 2017, 03:10:17 PM
All that needs to be finished is the inlet plumbing.  All the parts are there and I just need to cut the copper pipes to length and assemble them.  And then there is the painting which I never look forward to do.  Maybe that's what is holding me up or the thought of the next model which might not be an engine.  Who knows. We'll see.

Congrats on your future retirement.

Vince

Vince: You mentioned you'd be gone summer. After being out of the loop it takes awhile to get back to a project, just the nature of life. I'm sure a few days back on task and it'll be fun again. It's so close, and so nicely done.

Thanks.

Hugh
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Hugh Currin on October 12, 2017, 03:12:47 PM
But my generous nature means I am concerned that some youngster may loose their job and someone who really needs it, who may have a family to support and their entire future in front of them might not have a job

Jo: Some of the best rationalization I've seen for some time. Good job!

Hugh
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on December 09, 2017, 10:33:58 AM
Well Ramon's start of his Corliss project gave me some motivation to continue with my Monitor.  Also, I need the table I use to be cleared by mid-January for something else.

Jo suggested I restart with something simple and that what I actually did.  I glued together the two parts of the exhaust stacks.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20238.JPG)

And here they are fitted in place.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20239.JPG)

Next, I started work on the inlet manifold.  All the parts were previously done.  First I trimmed the bent copper pipes to length.  To make sure that the free ends of the copper pipes face each other I put a 3mm drill in the pipes and glued the other end to the mounting flange.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20240.JPG)

Next to glue the T-piece but first I will let the glue harden.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: b.lindsey on December 09, 2017, 12:05:11 PM
Good to see you back Vince. We have been "monitor-less" for a while and it's good to have yours back on the active list.

Bill
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on December 09, 2017, 06:21:27 PM
Thanks Bill.

Monitor-less.  I like that.

I wonder if Carl is going to continue working on his version.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: b.lindsey on December 09, 2017, 09:24:19 PM
I hope so Vince, he hasn't been on much lately. Work must be keeping him busy at the moment. 

Bill
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on December 10, 2017, 08:17:39 AM
Managed to glue the T-piece also.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20241.JPG)

Added the globe valve.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20242.JPG)

Fitted the inlet manifold to the steam chests.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20243.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20244.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on December 10, 2017, 10:45:47 AM
So this model is basically finished. Just a few minor things to add like some studs, gaskets and piston sealing with graphite string.  I am now going to paint some of the components which means a total disassembly.  I really hate doing this because I am never sure that the model will run again after reassembly.

So I took a video before I break it down.

[youtube1]https://www.youtube.com/watch?v=2G1PxnPeK8s[/youtube1]

At least this model makes a little noise unlike the Corliss.  There is an annoying knocking noise that I might need to investigate.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Ramon Wilson on December 10, 2017, 01:12:03 PM
Vince - congratulations on an excellent runner after what appears to be some serious machining input  :ThumbsUp: :ThumbsUp: (I confess I have not followed much on here for some time).

It certainly is a unique design and you must be well pleased with the result - I have to say it's movement reminds me strongly of this which fascinates me immensely - I never tire of watching or listening to it

https://www.youtube.com/watch?v=toXNVbvFXyk


Also hope you didn't mind me posting a pic of my engines on your thread but I thought it would serve to show just how quick 'mojo' can revitalise at times.

Hopefully you will be motivated by your fine result to try something new once you have it painted ( I have to say however it does look rather impressive in it's natural state  ;))

Best Regards - Ramon
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on December 10, 2017, 01:53:37 PM
Vince, that is running great!

 :ThumbsUp:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: steamer on December 10, 2017, 01:56:30 PM
Nicely done Vince!

Dave
Title: Re: Vince's version of the Monitor Steam Engine
Post by: b.lindsey on December 10, 2017, 02:51:20 PM
Gorgeous Vince!!!  Absolutely stunning  :praise2: :praise2:

Bill
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on December 10, 2017, 03:28:18 PM
Thanks Ramon, Chris, Dave and Bill.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: fumopuc on December 10, 2017, 03:29:08 PM
Hi Vince,
very nice.
I like this smooth and very slow running model engines.
Good to see that this story has got a happy end.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on December 11, 2017, 04:59:54 AM
Thanks Achim.  Best of luck on your Hoglet.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: tvoght on December 11, 2017, 02:24:03 PM
That's a fine runner Vince. Congratulations!

--Tim
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on December 11, 2017, 08:07:46 PM
Thanks Tim.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Don1966 on December 11, 2017, 11:45:36 PM
Vince that turned out to be a work of art. And awesome built and a nice runner and I bet your prouder that an hen in a coup full of roosters. Nice work buddy all around..... :praise2:


 :cheers:
Don
Title: Re: Vince's version of the Monitor Steam Engine
Post by: gbritnell on December 12, 2017, 12:53:59 AM
Outstanding Vince! It runs extremely smooth.
gbritnell
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Dave Otto on December 12, 2017, 01:26:33 AM
Beautiful engine Vince!

She runs as nice as she looks!


Dave
Title: Re: Vince's version of the Monitor Steam Engine
Post by: 10KPete on December 12, 2017, 01:45:08 AM
Very nice runner, Vince! Smooth and quiet... I love the motion of all the arms. I do understand the difficulty getting back in the saddle after a prolonged absence.

Best wishes,

Pete
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on December 12, 2017, 11:32:56 AM
Thanks Don, George, Dave and Pete.

Not totally finished yet.  Yesterday I removed the cylinders for painting.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: sshire on December 12, 2017, 11:47:42 AM
Vince
The Monitor looks and runs beautifully. Looks like we’re both recent returns to the forum.
You are a braver man than I to disassemble a running Monitor.
I have this dread that if I took apart a wobbler with 3 parts it wouldn’t run again.
My reentry strategy was to build a simple engine (Elmer’s #50 Educational Model).
That’s basically done. I did take it apart for paint. Should be posting the finished engine soon
Title: Re: Vince's version of the Monitor Steam Engine
Post by: ShopShoe on December 12, 2017, 12:36:10 PM
Vince,

I really enjoyed watching your monitor run. Nice and slow and I like the sound. I know it takes your projects take a while, but it's always worth the wait.

Any ideas for a next project?

--ShopShoe
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Jim Nic on December 12, 2017, 02:04:38 PM
Really nicely done Vince, congratulations.  I look forward to seeing the painted engine.
Jim
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Flyboy Jim on December 12, 2017, 03:42:32 PM
Nice engine Vince...........well done!  :ThumbsUp: I love to watch these engines run.........quite captivating.

Jim
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on December 12, 2017, 05:04:30 PM
Thanks Stan, ShopShoe, Jim and Jim for the nice comments.

Quote
You are a braver man than I to disassemble a running Monitor.

Stan, I don't consider myself braver, just stupid.

Quote
Any ideas for a next project?

Yes, next project has already been decided on.  That is the reason I want to finish the Monitor and clear the table.  It is not going to be a model engine but a model of something else, so I won't be doing a build log here as it would not be appropriate.

Vince

Title: Re: Vince's version of the Monitor Steam Engine
Post by: Gas_mantle on December 12, 2017, 07:37:48 PM
A great model Vince, something to be proud of  :)

The flanged pipe work really adds a nice touch.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: JR72 on December 13, 2017, 07:53:44 AM
Hi Vince, What a beautiful example of model engineering at its best. Well done.
Very impressed.
JR72
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on December 13, 2017, 03:59:10 PM
Thanks Gas_mantle and JR72.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Roger B on December 14, 2017, 11:20:02 AM
Excellent  :praise2:  :praise2: It's fascinating to watch  :wine1: but I do wonder about the phasing of the pistons and valves with the angled connecting rods and rockers  :headscratch:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on December 14, 2017, 06:20:12 PM
Thanks Roger

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: cfellows on December 15, 2017, 07:43:36 PM
Beautiful piece of work, Vince.

Chuck
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on December 16, 2017, 04:44:16 AM
Many thanks Chuck.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Tjark on December 16, 2017, 09:19:55 AM
Vince,  its a beautiful piece off work.
Very nice running to.

    Tjark.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on December 20, 2017, 08:08:35 PM
Thanks Tjark.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on December 22, 2017, 03:28:36 PM
Started the painting process.  This time, instead of totally disassembling the whole model, I thought of a removing part, painting it and then remove the next part for painting.

Before I started removing parts I thought I would take a couple of photos of the eccentrics and slide valves as a reminder for re-assembly.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20245.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20246.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20247.JPG)

Finished the rocker arm bearings and the plate on which they are fixed.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20248.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20249.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on December 23, 2017, 03:14:04 PM
Filled the piston groove with graphite string.  This method worked well in the Corliss so it should also work on the Monitor.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20250.JPG)

Fitted the steam chests to their linkages.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20251.JPG)

Assembled the cylinders with gaskets.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20252.JPG)

Joined together the steam chests to the cylinders not forgetting the gaskets of the steam chests.  Cylinders complete.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20253.JPG)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: b.lindsey on December 23, 2017, 06:38:39 PM
The painting looks very nice Vince. Does anyone know if there was a color scheme for the original engine?

Bill
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on December 31, 2017, 04:30:43 PM
Thanks Bill.

Finished painting all the parts that needed a lick of colour.

(http://www.nam-engineering.com/cm/albums/userpics/10009/Monitor20254.JPG)

I will leave them for a couple of days to dry and then start the assembly of the Monitor.  Fingers crossed.

Happy New Swarf Making Year to all my patient followers.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: bouch on January 18, 2018, 06:10:14 PM
Hi Vince,

Nice running engine, very cool motion to watch.

Where did you get the plans from?  I see in the first post you mention someone named Julius, but I'm relatively new to this forum and I don't know who that is.  I did a quick search of the "plans" section and I didn't find anything.

Thanx!
Title: Re: Vince's version of the Monitor Steam Engine
Post by: b.lindsey on January 18, 2018, 06:23:13 PM
You should find them here in both metric and imperial versions.

http://www.modelenginemaker.com/index.php/topic,5602.msg107549/topicseen.html#msg107549

Bill
Title: Re: Vince's version of the Monitor Steam Engine
Post by: bouch on January 18, 2018, 07:35:55 PM
Thanx b.lindsey!
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on January 18, 2018, 08:24:31 PM
Thanks bouch.  Hope you managed to find the plans.

Just a quick update.  Engine has been re-assembled and running again. :)

Just waiting for a wooden base to complete the project.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on January 18, 2018, 08:44:13 PM
Excellent!! Looking forward to seeing the finished model running!


 :ThumbsUp:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on March 07, 2018, 11:57:05 AM
After nearly two years, I am calling it finished.  Took some glamour shots and at the moment residing on a shelf in the company of the Corliss and Kiwi.

(http://www.nam-engineering.com/cm/albums/userpics/10009/normal_Monitor20255.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/normal_Monitor20256.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/normal_Monitor20257.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/normal_Monitor20258.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/normal_Monitor20259.JPG)

(http://www.nam-engineering.com/cm/albums/userpics/10009/normal_Monitor20260.JPG)

I still need to take a final video in it's current colour scheme.  Maybe tomorrow.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Tennessee Whiskey on March 07, 2018, 12:03:33 PM
Just beautiful Vince. You’ve done it proud.

Cletus
Title: Re: Vince's version of the Monitor Steam Engine
Post by: b.lindsey on March 07, 2018, 12:25:19 PM
A really excellent result Vince, and the finishes of each part are first rate. Looking forward to the video!!

Bill
Title: Re: Vince's version of the Monitor Steam Engine
Post by: crueby on March 07, 2018, 12:44:51 PM
That looks wonderful! Congratulations!
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Dave Otto on March 07, 2018, 01:32:20 PM
Beautiful engine Vince!
Very nice work!

Dave
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Ramon Wilson on March 07, 2018, 02:32:52 PM
Congratulations Vince - absolutely stunning result  :ThumbsUp: :ThumbsUp:

The red, black, steel and brass really compliment each other - a really lovely looking model

Tug
Title: Re: Vince's version of the Monitor Steam Engine
Post by: tvoght on March 07, 2018, 04:17:04 PM
Really nice Vince. Beautiful.


--Tim
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Kim on March 07, 2018, 04:32:31 PM
Wow!  Well done Vince, it looks beautiful!
Kim
Title: Re: Vince's version of the Monitor Steam Engine
Post by: fumopuc on March 07, 2018, 07:10:35 PM
....and what is comming next ?
Nice colour and a perfect addition to your show case.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on March 07, 2018, 08:04:13 PM
Thanks gentlemen for your kind comments and continued support during this build.  :praise2:  I am just trying to emulate the masters on the forum.

Hopefully tomorrow I will get the video done.  I did not do it today because, as a professional would say, I lost the light. :)

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: bouch on March 07, 2018, 10:21:29 PM
Looks very sharp.  Quite inspirational.  Nice work!
Title: Re: Vince's version of the Monitor Steam Engine
Post by: scc on March 07, 2018, 10:51:16 PM
As everyone has said,  a beautiful piece of craftsmanship. Well Done.         Terry
Title: Re: Vince's version of the Monitor Steam Engine
Post by: toolznthings on March 08, 2018, 02:26:12 AM
Absolutely first class workmanship !   :ThumbsUp:

Brian
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on March 08, 2018, 09:38:21 AM
Thanks again guys.

As promised, here is the video.

[youtube1]https://youtu.be/Kcvwx0ARmMA[/youtube1]

It is running with about 20 psi which a bit more than the previous runs and for some reason that annoying knocking sound which I had in the previous video has lessened.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Jeff Michel on March 08, 2018, 10:51:13 AM
A wonderful job! I really enjoyed your build.
Thanks for sharing.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Jim Nic on March 08, 2018, 11:29:27 AM
A beautiful result Vince. Congratulations.
Jim
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Tjark on March 08, 2018, 11:31:57 AM
Vince, a super job.

Hoping that i have the workshop ready in a couple off months an can build again.
By looking what members are doing these days my fingers are itching to go in the shop.
Did you find the source off the knocking?

  Tjark.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: ShopShoe on March 08, 2018, 12:50:00 PM
Vince,

I've been following this and it's great to see it completed. It looks great and it runs well. In this latest version in the new video I have to say "What Knocking?" It sounds great.

I especially liked your build because you kept coming back to it during a period where you had a lot of interruptions. You are inspiring me as I have very little time for the shop lately but try to keep at it when I can in hopes that more work will eventually get done.

I look forward to whatever you do next.

ShopShoe
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Gas_mantle on March 08, 2018, 10:34:25 PM
A great engine Vince, one to be proud of  :)
Title: Re: Vince's version of the Monitor Steam Engine
Post by: zeeprogrammer on March 08, 2018, 10:51:03 PM
Awesome Vince! Something to be very proud of...and to show off every chance you get.

I apologize for not having kept up as much as I should have.

Now you got me thinking about the one I mothballed some time ago. It's hard to believe it's been two years!!!
But now I have another excellent reference thread.  ;D

Again...Nice Job!!!  :ThumbsUp: :ThumbsUp:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: b.lindsey on March 09, 2018, 12:24:10 AM
Just stunning Vince. So nice to see it running too and so smoothly!!

Bill
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Craig DeShong on March 09, 2018, 11:21:43 PM
Poetry in motion.  Thanks for sharing!
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on March 10, 2018, 04:14:11 AM
Thanks guys for the nice comments.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Roger B on April 02, 2018, 12:15:36 PM
Excellent  :praise2:  :praise2:  :wine1:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Steamer5 on April 02, 2018, 02:22:47 PM
Very nice Vince.

A great build log to go with it

Cheers Kerrin
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on April 03, 2018, 08:32:01 PM
Thanks Roger and Kerrin for the positive comments and for following along.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vdubjunkie on July 04, 2018, 03:05:41 PM
I know I'm late to the party, but I couldn't agree more.  Not only is that engine a joy to watch in action from a design perspective, but your craftsmanship is first rate.  Here is certainly something of which to be proud!

Title: Re: Vince's version of the Monitor Steam Engine
Post by: cfellows on July 05, 2018, 04:10:37 PM
Stunning build, Vince, very nice work.

Chuck
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on July 05, 2018, 08:57:51 PM
Thanks Chuck and vdubjunkie for your nice comments.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: gbritnell on July 05, 2018, 10:14:16 PM
Outstanding job Vince! I really think the colors set it off nicely.
gbritnell
Title: Re: Vince's version of the Monitor Steam Engine
Post by: steamer on July 06, 2018, 12:10:36 AM
It looks and runs fabulous Vince!
 :praise2: :praise2: :praise2:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Dave Otto on July 06, 2018, 12:34:01 AM
Hi Vince
Somehow I missed this; Wow beautiful engine and lots of nice motion!


Dave
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on July 06, 2018, 06:28:10 AM
Thanks George, Dave and Dave.

George, I am following your build of the miniature MEM Corliss with interest.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Zephyrin on July 06, 2018, 09:52:04 AM
A great story in all these pages, and a wonderful engine at the end...
very uncommon model, with large pages of history behind, and so nice to watch running, congratulations and thanks to share !
Title: Re: Vince's version of the Monitor Steam Engine
Post by: Baner on July 06, 2018, 11:31:51 AM
Just went back through the thread. All round excellent job. Congrats.

Dave.
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on July 06, 2018, 06:28:11 PM
Thanks Zephyrin and Dave.  Glad you liked the build log.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: gary.a.ayres on July 18, 2019, 11:26:03 PM
Also late to the party, but glad I came!

Masterful work and a beautiful engine.

If I ever get to anywhere near this standard, I'll be overjoyed.

 :LittleAngel:
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on July 19, 2019, 05:05:23 AM
Thanks Gary.

Vince
Title: Re: Vince's version of the Monitor Steam Engine
Post by: vcutajar on March 04, 2021, 05:37:09 PM
If you can't see the photos on this build log suggest you go here:
http://www.modelengineeringwebsite.com/USS_Monitor_engine_build_1.html


Vince
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