Model Engine Maker

Engines => From Plans => Topic started by: toolznthings on March 01, 2019, 06:47:38 PM

Title: Travis Steam Engine 2 X Size
Post by: toolznthings on March 01, 2019, 06:47:38 PM
Starting a new build thanks to Thomas ( Ye-Ole Steam Dude ) for sharing his nice set of plans for the engine he designed. A couple of private messages back and forth with Thomas and he agreed a double size build
would work out. This will be posted as I progress through the build.

Going to start with the crankshaft which will be probably the most difficult part to make. Leaving the output ends long, the crank will be 16.5 inches long. In keeping with the style of the engine I decided on a metric
size ball bearing for the crank to run on. It's overall size is compact compared to a inch size bearing. I'm using a 6003-2Z bearing. McMaster Carr # 6661K16.

Fastener sizes will be chosen as I go forward.

The for throws for the crank are 1.000" thick x 1.500" wide and 2.000" in diameter on the rounded end. The main shafts are .750 diameter at the throws and .625 diameter at the output ends. The connecting rod journals are .500" diameter. A diameter is turned for a slip fit for 17 mm bearing I.D.


Extra attention to sizing the throws was done by surfacing grinding the thickness and width after rough milling from a finish turned 2.000 diameter making four blanks. The extra effort will be apparent as I begin addition machining.

The blanks with the CAD layout of the crankshaft.
Setup in the mill for drilling, spot drill first opp.

 
Title: Re: Travis Steam Engine 2 X Size
Post by: Johnmcc69 on March 01, 2019, 07:33:24 PM
Wow! That's going to be a big model! Great work so far!

 Sign me up for the ride....
 :popcorn:

 John
Title: Re: Travis Steam Engine 2 X Size
Post by: Ye-Ole Steam Dude on March 01, 2019, 10:53:53 PM
Hello Brian,

I am so pleased to see the first parts being machined, it goes without saying that I will be following this build all the way. Sure hope that you document each step along the way and share plenty of photos with all of us. Let me know if I can help in any way, either PM or direct email.

I am excited to see this project underway :cartwheel:

Have a great day,
Thomas
Title: Re: Travis Steam Engine 2 X Size
Post by: yogi on March 01, 2019, 11:15:04 PM
Very cool Brian!
Iím looking forward to see the progress.  :popcorn: :popcorn: :popcorn:
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on March 02, 2019, 02:43:44 AM
Hello Brian,

I am so pleased to see the first parts being machined, it goes without saying that I will be following this build all the way. Sure hope that you document each step along the way and share plenty of photos with all of us. Let me know if I can help in any way, either PM or direct email.

I am excited to see this project underway :cartwheel:

Have a great day,
Thomas

Thanks Thomas !  And others !  :)
Title: Re: Travis Steam Engine 2 X Size
Post by: crueby on March 02, 2019, 02:57:46 AM
Those are impressive specs!  Do you have a pic or drawing of what it will look like?


 :popcorn: :popcorn: :popcorn:
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on March 02, 2019, 05:03:45 AM
Search for " Travis Steam Engine " Thomas has a build on his YouTube channel. Just think twice the size.  :)
Title: Re: Travis Steam Engine 2 X Size
Post by: b.lindsey on March 02, 2019, 02:21:56 PM
This one will be quite a beast at 2x scale. Should be a great project though.

Bill
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on March 04, 2019, 05:48:41 PM
More work on the crankshaft ...........

A note on the initial setup for the crank throws. I used a dial indicator in the mill spindle and swept the width of the blanks to find dead center. All the blocks are exactly the same width, 1.500 "

After spot drilling all the blanks I rough drilled for the crank pin bores and the output ends. I like to chamfer the the bores after drilling to plus size of the finished bore before the boring operation. This prevents a burr from being rolled into the finished hole if chamfered last.

Setup the boring head and bored the .750" and .500" bores to close slip fit for the shafts. The rod journals will be ground 12L14 rod .500 in diameter and one piece .750" in diameter for the center link.

The crank ends will be turned from 7/8" diameter 12L14 stock. Three diameters in one setup, .750", 17mm for the bearing and .625" at the ends.

First attempt at the lathe starting with .750" ground stock in the collet did not produce a shaft true enough and I went with the 7/8" stock to turn all the diameters.

Last picture showing a dry fit assembly of the parts.
 
Title: Re: Travis Steam Engine 2 X Size
Post by: bent on March 04, 2019, 06:45:49 PM
Cool!  Will be following with interest  :popcorn:
Title: Re: Travis Steam Engine 2 X Size
Post by: Ye-Ole Steam Dude on March 04, 2019, 08:03:19 PM
Hello Brian,

Beautiful work on the crank, are you going to make it 180 degree or a 90 degree?

Have a great day,
Thomas
Title: Re: Travis Steam Engine 2 X Size
Post by: b.lindsey on March 04, 2019, 10:03:10 PM
Nice progress already Brian.  :ThumbsUp:

Bill
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on March 05, 2019, 02:22:19 AM
Hello Brian,

Beautiful work on the crank, are you going to make it 180 degree or a 90 degree?

Have a great day,
Thomas

Hi Thomas,
Keeping the crank like the drawing, 180 degrees. Trying to stay true to the design as possible.
Title: Re: Travis Steam Engine 2 X Size
Post by: Jim Abood on March 07, 2019, 12:19:55 AM
Hi Brian
You always do incredible work.   I am looking forward to seeing more  pics of the build.
Jim
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on March 07, 2019, 01:06:41 AM
Thanks Jim ! Welcome to the forum  :hi:
Title: Re: Travis Steam Engine 2 X Size
Post by: gbritnell on March 07, 2019, 01:10:33 PM
Hi Brian,
With the flat crank the engine won't be self starting? I went to Youtube to look up the engine but there's so many on the channel with the same name I didn't know which one to look at.
gbritnell
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on March 07, 2019, 03:26:26 PM
H i George !

Try this link to his YouTube channel :      https://www.youtube.com/channel/UCNWSrK1_cKLTO3gGfzbGvZw

I realize it won't self start, but the crank is a project in its self as designed.
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on March 07, 2019, 03:52:25 PM
More crankshaft build ..........

Assembling the crank parts using 609 Loctite with 427 primer. Output shafts assembled first with the center throws and .750 shaft as a separate assembly. ( no picture )

Set up each output assembly in Starrett V-blocks and established gauge block stack that supports the throws parallel to the surface plate. Two additional gauge block stacks will be used in the next
setup to support the remaining parts.

Aligning the V-blocks with a Starrett straight edge on a mill fixture plate. The rest of the parts are assembled and very lightly clamped. I will be using #2 and #3 taper pins to pin all parts after giving
a day or so for the Loctite to cure.

More to come ..........
Title: Re: Travis Steam Engine 2 X Size
Post by: dpaulson on March 07, 2019, 04:46:59 PM
Brian
I built the Travis# 4 steam engine you are building only to Thomas drawings , Looks great
Dave
Title: Re: Travis Steam Engine 2 X Size
Post by: Ye-Ole Steam Dude on March 07, 2019, 05:08:47 PM
Hi Brian,
With the flat crank the engine won't be self starting? I went to Youtube to look up the engine but there's so many on the channel with the same name I didn't know which one to look at.
gbritnell


Hello George,

It is Steam Engine No. 4 (see attached drawing) and believe it or not it does self start most of the time even with low air pressure.

Brian, that crank looks great and I like your hold down technique.

Have a great day,
Thomas
Title: Re: Travis Steam Engine 2 X Size
Post by: yogi on March 07, 2019, 06:02:39 PM
Hi Brian, quite a bit of fixturing you got going on there...  :ThumbsUp: :ThumbsUp: :ThumbsUp:

 :popcorn: :popcorn: :popcorn:
 
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on March 11, 2019, 12:57:36 PM
More crankshaft work ..........

Setting up the crank to drill and ream for taper pins. Doing the connecting rod journals first with a #2 size pin. Edge find to center position and spot drill four places, drill and ream.
Using a left hand spiral-right hand cut reamer under power. Not a good idea for success to try this with a straight flute style reamer as they tend to grab and will often break.  :o

Same type of setup to do the larger .750" shafts with a # 3 reamer.

A note about installing the taper pins. Be sure the reamed holes are clean and oil free and the same for the taper pin, too. The pins will not seat firmly with oil left over from reaming, etc.

I had long pins on hand and used them for the assembly since I wanted pin stick out on both sides of the hole for the next operation.
Title: Re: Travis Steam Engine 2 X Size
Post by: b.lindsey on March 11, 2019, 02:01:08 PM
Coming along well Brian and with those taper pins the crankshaft should be  good and solid as well.

Bill
Title: Re: Travis Steam Engine 2 X Size
Post by: yogi on March 12, 2019, 01:38:41 PM
That's one beefy crankshaft! Looking good.  :popcorn: :popcorn: :popcorn:

Title: Re: Travis Steam Engine 2 X Size
Post by: Ye-Ole Steam Dude on March 12, 2019, 07:52:25 PM
Hello Brian,

Great looking crank and quite beefy. :ThumbsUp: :ThumbsUp:

Have a great day,
Thomas
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on March 13, 2019, 12:52:55 PM
Finish operations on the crankshaft .......

Sawed off the taper pins staying away from the throws as not to mark them. Won't take long to grind off the remaining part even though there looks to be a lot to remove.

Blocked up on the surface grinder for the first side with 1-2-3 blocks. will grind off the pins and take about .001" dust off on the throws to finish. Ran this side dry because I'm to lazy to cleanup
the coolant from the tooling.    ::)

The last side gets the same operation down on the magnet this time with coolant.   :cartwheel:



More parts to come .........



Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on March 13, 2019, 02:47:19 PM
The end results .........


The final check for run out with the crank running on its bearings. Happy !

Nm83VRDSe2M
Title: Re: Travis Steam Engine 2 X Size
Post by: b.lindsey on March 13, 2019, 03:00:09 PM
 :ThumbsUp: :ThumbsUp:

Bill
Title: Re: Travis Steam Engine 2 X Size
Post by: Admiral_dk on March 13, 2019, 09:52:33 PM
That is a great result with the crank  :ThumbsUp:  :cheers:
Title: Re: Travis Steam Engine 2 X Size
Post by: jeff l on March 14, 2019, 12:56:11 AM
Great Job !
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on March 19, 2019, 09:03:54 PM
Machining the overall size of the base plate and bottom plate ......

Rough sawed from .750" plate. The base plate and bottom plate. I made the bottom plate thicker than 2X scale of the original that would have worked out to 1/2" thick. Overall finished size will be .750" x  9.750" x 6.000".
The bottom plate ( supports the cylinders ) will be .750" thick x 4.000" wide x 7.750" long.

Milled the width on both plates, first operation.

Using a angle plate in the mill vise I machined the ends and overall length to size. This setup will give a perfect 90 degree edge to the plate face, important since these two parts produce the engines main frame.
Title: Re: Travis Steam Engine 2 X Size
Post by: b.lindsey on March 19, 2019, 09:59:32 PM
Looks good Brian. This is going to be a hefty engine when done.  Still watching along.

Bill
Title: Re: Travis Steam Engine 2 X Size
Post by: yogi on March 19, 2019, 10:03:46 PM
Looking good Brian!  :popcorn: :popcorn: :popcorn:
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on March 20, 2019, 01:24:04 AM
Thanks, guys.   :)
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on March 22, 2019, 05:12:01 PM
Machining the frame end plates and bearing bores .........

End plates for the engine frame are made from .375" thick plate and finished to overall size of 6.000" wide x 5.250" high. Overall size will be machined with the plates clamped in pairs.

(https://i.postimg.cc/NF7LVt4H/IMG-1033.jpg)

(https://i.postimg.cc/k504gGYS/IMG-1034.jpg)

I put a center mark on each side of the plates to scribe a layout circle for the bearing bores as a roughing guide.

Bored thru 13/16" clearance for the crank shaft and as a reference bore to locate when doing the opposite side.

(https://i.postimg.cc/W1fzxXMX/IMG-1035.jpg)
(https://i.postimg.cc/9fR02ZbV/IMG-1036.jpg)

Finish boring for slip fit to the ball bearing using a flat bottom ground boring bar. ( layout line visible ) The bore is half the thickness of the bearing in depth. Added a counter bore .010" deep to clear the inner race of the bearing.

(https://i.postimg.cc/Y214jNHC/IMG-1037.jpg)
(https://i.postimg.cc/g20rMf6x/IMG-1038.jpg)

Used a 45 degree chamfer bar to to break the bores edges. Flip to the opposite side and pick up bore and repeat the operations.

(https://i.postimg.cc/L62JPq9B/IMG-1039.jpg)
(https://i.postimg.cc/RVdNLMqr/IMG-1040.jpg)

Next operation will be to cut the angled features on the plates to a 4.000 width at the top to match the bottom plate width. Used a height gage to scribe accurate layout lines where the cut runs out.
Set up with sine bar for the correct angle and used mill stop to locate the position of the sine bar so opposite side cut would be the same.

(https://i.postimg.cc/SRqxc5hN/IMG-1041.jpg)
(https://i.postimg.cc/gJ30Xp1T/IMG-1042.jpg)
(https://i.postimg.cc/d3Bt6BsR/IMG-1043.jpg)

This finishes the plates for now.

If you like the posting of pictures this way, thank my friend Yogi for helping me out.  :ThumbsUp:


Title: Re: Travis Steam Engine 2 X Size
Post by: Ye-Ole Steam Dude on March 22, 2019, 07:22:34 PM
Hello Brian,

Yes the photo layout is great with wording in between just works better. I have tried that a couple of times and for whatever reason I wind up deleting something.

Your work is beautiful. Like all involved projects I get anxious to see the completed engine, but hate to see it end because I enjoy following along.

Have a great day,
Thomas
Title: Re: Travis Steam Engine 2 X Size
Post by: Johnmcc69 on March 22, 2019, 08:56:26 PM
Very nice work Brian (& Yogi, great pics...)
 & a shout out to Thomas for his design.

 John
Title: Re: Travis Steam Engine 2 X Size
Post by: yogi on March 23, 2019, 01:37:15 AM
Looking good Brian!  :ThumbsUp: :ThumbsUp: :ThumbsUp:
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on March 26, 2019, 08:04:27 PM
Machining the bearing retainer plates ...........

These parts retain the bearing in the end plates. Sawed two circular rough cut outs on the band saw from 3/8" plate.
Will do the same bores as the end plates, but this time at the lathe.

(https://i.postimg.cc/SKbQY3Sn/IMG-1045.jpg)

Next set up will be at the mill picking up the bores to drill clearance holes for 10-32 screws. Will also drill and tap a matching set of holes in a scrap fixture plate.

(https://i.postimg.cc/HWvp9VWD/IMG-1047.jpg)


Will be machining the profile at the Tormach mill.

Since I drill clearance holes in the blank a little masking tape around the screws will take up the space when bolting the blank to the fixture.

(https://i.postimg.cc/QxBj4hVB/IMG-1050.jpg)

Pick up bores for part center.

(https://i.postimg.cc/TwRRCbWG/IMG-1048.jpg)

Finish machine the contour and chamfer all around.

(https://i.postimg.cc/nrrnttkP/IMG-1051.jpg)

Added a couple of ball end milled grooves for looks. These parts are finished. Shown with the end plates.

(https://i.postimg.cc/mknBL6p2/IMG-1052.jpg)

Thanks for the comments and views !  :)
Title: Re: Travis Steam Engine 2 X Size
Post by: Ye-Ole Steam Dude on March 27, 2019, 08:24:44 AM
Hello Brian,

Really nice touch with the Ball End Mill work :ThumbsUp:

Have a great day,
Thomas
Title: Re: Travis Steam Engine 2 X Size
Post by: gbritnell on March 27, 2019, 11:17:54 AM
HI Brian,
It's coming along nicely. I really like those end plates!
gbritnell
Title: Re: Travis Steam Engine 2 X Size
Post by: b.lindsey on March 27, 2019, 01:12:21 PM
I will second Georges comment on the end plates. Those add a very nice touch!!

Bill
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on March 31, 2019, 05:41:24 PM
Finishing the base plate rectangle cut outs on the Tormach with corner chamfers around the edges.

(https://i.postimg.cc/brX59MmM/IMG-1054.jpg)

(https://i.postimg.cc/SQ83xSsp/IMG-1055.jpg)

Making a final finish pass.

(https://i.postimg.cc/C5jQPNtK/IMG-1057.jpg)

(https://i.postimg.cc/15rdDvwC/IMG-1058.jpg)
Title: Re: Travis Steam Engine 2 X Size
Post by: Ye-Ole Steam Dude on April 01, 2019, 12:56:01 PM
Hello Brian,

More beautiful workmanship by adding the chamfers on the cutouts. :ThumbsUp:

Have a great day,
Thomas
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on April 02, 2019, 05:25:50 PM
Machining the bottom plate for the cylinders ...........

Working with the previously machined to size plate. Rough drilling for the 2" thru bores first.
Followed by finish boring to size to 2.000".
(https://i.postimg.cc/GmqhgJwz/IMG-1061.jpg)
(https://i.postimg.cc/cJC1pgdW/IMG-1062.jpg)

Rough milling to a layout line for the counter bores that finish to 3.250" to fit the cylinder base.
(https://i.postimg.cc/brxqx19x/IMG-1064.jpg)

Followed by boring to size. 
(https://i.postimg.cc/k4tJ50Vh/IMG-1065.jpg)

Chamfer the 2.000" bore with the boring head and the 3.250" and using a fly cutter and tool bit since the boring head would not reach.

(https://i.postimg.cc/28N61S7d/IMG-1067.jpg)
(https://i.postimg.cc/dt9qDm1v/IMG-1068.jpg)

Drilling and counter boring for socket head cap screws to finish up.
(https://i.postimg.cc/x1T9mJJm/IMG-1069.jpg)
(https://i.postimg.cc/zXNzJPq0/IMG-1070.jpg)
(https://i.postimg.cc/qByBHdHN/IMG-1071.jpg)
Title: Re: Travis Steam Engine 2 X Size
Post by: yogi on April 03, 2019, 01:00:11 AM
 Looking good!

:popcorn: :popcorn: :popcorn:

Title: Re: Travis Steam Engine 2 X Size
Post by: Dave Otto on April 03, 2019, 01:12:38 AM
Very nice work as usual Brian.  :ThumbsUp:


Dave
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on April 03, 2019, 02:08:02 AM
Thanks everyone :)
Title: Re: Travis Steam Engine 2 X Size
Post by: gary.a.ayres on April 03, 2019, 12:04:47 PM
Great-looking parts!
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on April 07, 2019, 07:07:32 PM
Machining the crankshaft spit center bearing support ..........

Machined to size the bearing support block from stock long enough to get the base and top cap.

Sawed and machined the overall lengths of the base and cap. Drilled and counter bored for 10-32 socket head cap screws.

(https://i.postimg.cc/V6r0jZcH/IMG-1079.jpg)

(https://i.postimg.cc/3RvWyygs/IMG-1081.jpg)

Assembled the two parts clamped in the mill vise for alignment.

(https://i.postimg.cc/JnfDK3r7/IMG-1086.jpg)

Set up the assembly and drilled and reamed for 1/16" dowel pins.

(https://i.postimg.cc/5yWy8xg6/IMG-1087.jpg)

(https://i.postimg.cc/3wWkTfWJ/IMG-1088.jpg)

Next operation was to rough machine and finish bore on the split line for the bronze bearing that will be made.

(https://i.postimg.cc/s28vDPZP/IMG-1089.jpg)

(https://i.postimg.cc/zXSbSR95/IMG-1090.jpg)

Ready to machine the bearing to fit the block bore and the crankshaft .750" diameter center.



Title: Re: Travis Steam Engine 2 X Size
Post by: Ye-Ole Steam Dude on April 07, 2019, 07:49:57 PM
 :popcornsmall:
Title: Re: Travis Steam Engine 2 X Size
Post by: b.lindsey on April 07, 2019, 09:02:14 PM
More nice progress and good looking parts as well Brian.

Bill
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on April 09, 2019, 03:38:54 PM
Machining the bearing insert for the crankshaft center support.

Turned the O.D. of the bushings for a tight fit to the housing with the I.D. rough drilled. I parted off the bushing longer than needed.

(https://i.postimg.cc/3RF5bY7y/IMG-1091.jpg)

At the mill I set up both bushings for milling to half the diameter. Checking with gauge block over the split.

(https://i.postimg.cc/286RTst6/IMG-1092.jpg)

(https://i.postimg.cc/brYX7WNm/IMG-1093.jpg)

With the inserts installed I finish bored for the crank pin diameter. The reason for this operation was to insure that I was exactly on the center line of the crank measured from the base plate. Everything will be doweled when in final location.

(https://i.postimg.cc/nzJfkC8b/IMG-1095.jpg)

The final length of the insert is mill in relation to the thickness of the bearing support block, equal amount and centered. I left .005" per side clearance to the crank throws.

(https://i.postimg.cc/J0TwMxsM/IMG-1096.jpg)

Finished results. Added dowels to each half to keep the inserts from moving.

(https://i.postimg.cc/d1vgCpdJ/IMG-1100.jpg)

Added note : Repeated this operation after I found a piece of 660 bronze stock I did not know I had. IMO 360 brass makes a poor bearing material and was not my first choice. Beside who doesn't like doing things over again ?   ::)



Title: Re: Travis Steam Engine 2 X Size
Post by: crueby on April 09, 2019, 04:54:47 PM
Nicely done. And good to practise on the 360 before the bronze... Been there!
 :popcorn: :popcorn: :popcorn:
Title: Re: Travis Steam Engine 2 X Size
Post by: bent on April 09, 2019, 06:40:33 PM
Phew, glad you found the bearing bronze.  Agree, the 360 brass would wear too quickly for you.  Good progress, keep it up! :popcorn:
Title: Re: Travis Steam Engine 2 X Size
Post by: yogi on April 10, 2019, 01:38:07 AM
Coming along nicely Brian!
I always enjoy seeing your method of making parts.  :ThumbsUp: :ThumbsUp: :ThumbsUp:
Title: Re: Travis Steam Engine 2 X Size
Post by: Ye-Ole Steam Dude on April 10, 2019, 08:53:55 AM
Hello Brian,

Beautiful job on the bushing. However as straight as you made the crankshaft I don't think there will be much wear on that bushing.

Have a great day,
Thomas
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on April 12, 2019, 01:38:57 PM
Dowel pins and some test assembly .....

Set up for drilling and tapping the base for the side plates.

(https://i.postimg.cc/htPqd3H8/IMG-1077.jpg)

Assembled the side plates to the base and added dowels at each end. The dowels are spaced differently so each plate only fits the matching end.

(https://i.postimg.cc/s2bFbf1K/IMG-1078.jpg)

A couple of views with the crankshaft in place. Happy with the results ! Everything turns freely.  :)

(https://i.postimg.cc/527WqSVh/IMG-1101.jpg)

(https://i.postimg.cc/NMThthHt/IMG-1102.jpg)
Title: Re: Travis Steam Engine 2 X Size
Post by: Ye-Ole Steam Dude on April 12, 2019, 04:12:08 PM
Hello Brian,

Oh boy, now you have my blood pressure going way up. That is just plain old fashion BEAUTIFUL :praise2:, now I cannot wait to see a final assembly photo.

Have a great day,
Thomas

Title: Re: Travis Steam Engine 2 X Size
Post by: bent on April 12, 2019, 09:20:31 PM
 :P
Glad you said it first, Thomas, but if anything that looks prettier than the original.  Very nice craftsmanship!
Title: Re: Travis Steam Engine 2 X Size
Post by: b.lindsey on April 13, 2019, 01:22:49 AM
Still following along and really enjoying the build. Keep the pictures coming please.  :ThumbsUp:

Bill
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on April 13, 2019, 03:11:18 AM
Hello Brian,

Oh boy, now you have my blood pressure going way up. That is just plain old fashion BEAUTIFUL :praise2:, now I cannot wait to see a final assembly photo.

Have a great day,
Thomas

Hang in there Thomas ! I won't disappoint, more to come.  :)  And Thanks !!
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on April 15, 2019, 02:07:31 PM
Machining the cylinder head.

Luckily I had a piece of 6061-T6 bar stock in my collection of materials. The only problem was it was a 1" to big one way and a 1/2" the opposite. Got started milling to square up to the cylinder head overall size.
The head is 7.750" long x 2.500" high and 4.000" wide.

Getting one side cleaned up.
(https://i.postimg.cc/TYgxyRXZ/IMG-1103.jpg)

Then got to some serious milling to remove a bunch of material.

(https://i.postimg.cc/BZ840T7Z/IMG-1104.jpg)

Left some stock on the 2.500" height and started the milling of the steps on the sides.

(https://i.postimg.cc/s2DC07Zr/IMG-1105.jpg)

With the steps finished I took the last cut on the 2.500" thickness.   Not shown. I left some stock on both faces in case of any movement in the material from cutting the steps. Already did the side against the vise.

(https://i.postimg.cc/Jh6Cw0bB/IMG-1107.jpg)

Forgot to take pictures of cutting the corner radius using a 1/2" shank carbide wood router bit.   :Doh:   That worked very well.   :ThumbsUp:

All the machining for this part of the head is complete. More operations to come.

(https://i.postimg.cc/x1Q2MWfq/IMG-1111.jpg)









Title: Re: Travis Steam Engine 2 X Size
Post by: Ye-Ole Steam Dude on April 15, 2019, 04:53:14 PM
Hello Brian,

Man that is a stack of swarf on your machine  :Lol:. Same thing happened to me, my raw stock was too big and had a lot of milling to get it down to size. Looking good and my blood pressure is still rising.

Have a great day,
Thomas
Title: Re: Travis Steam Engine 2 X Size
Post by: yogi on April 15, 2019, 11:35:20 PM
A high metal removal rate is sure fun! The clean up afterwards not so much...   :Lol:
Beautiful part. I still marvel at the size of if it.  :popcorn:
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on April 17, 2019, 04:05:11 PM
More work on the cylinder head ..........

Add a center location for the bores that accept the cylinders and scribe a layout line to rough to with a end mill. The bores finish at 3.250" x .250" deep.

(https://i.postimg.cc/Cxxc3NJm/IMG-1112.jpg)

Rough out the stock close to the layout. Finish bore to size after this operation on both locations.

(https://i.postimg.cc/Df1pLm8d/IMG-1113.jpg)

(https://i.postimg.cc/J4qTYg3s/IMG-1114.jpg)

After the bores are complete the 17/64" drilled holes for the head bolts are drilled.

(https://i.postimg.cc/2yNHgNXZ/IMG-1115.jpg)

With the head turned over the head bolt counter bores were completed for 1/4-20 SHCS.

(https://i.postimg.cc/RZpg4HD9/IMG-1116.jpg)

Next set up added the tapped holes for the valve blocks and drilling for the air passages on both ends.

(https://i.postimg.cc/sxPnrHt0/IMG-1117.jpg)

Last operation connects the air passages to the cylinder bores. This completes the head for now.

(https://i.postimg.cc/Yqkn3kFc/IMG-1118.jpg)



Title: Re: Travis Steam Engine 2 X Size
Post by: b.lindsey on April 17, 2019, 10:39:38 PM
Still following along Brian, and enjoying the build. Nice looking parts too.

Bill
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on April 18, 2019, 02:06:50 AM
Still following along Brian, and enjoying the build. Nice looking parts too.

Bill

Thanks much, Bill !
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on April 23, 2019, 02:26:00 PM
Machining the engine cylinders ........

Starting with 3 3/4" 6061-T6 bar stock I did a cleand up cut on the stock O.D. to 3.725" and did a rough bore of 2" diameter.

With a center in the stock the outside ribs features of the cylinder were cut.

(https://i.postimg.cc/9XG7zSC8/IMG-1119.jpg)

The next operation was to finish bore the cylinder to 2.375" for the bronze cylinder liners.

(https://i.postimg.cc/jdcn47Wy/IMG-1120.jpg)

The finish machined cylinders were cut from the bar stock at the horizontal bandsaw and faced to length. The cylinders are 4.250" long.  ( no pics for this operation )

The 660 bronze stock was turned for a .002" plus diameter of 2.377" for a shrink fit into the aluminum cylinders and parted off longer than than finished size of 4.250".

(https://i.postimg.cc/QdM94d5w/IMG-1121.jpg)

(https://i.postimg.cc/pL19gMJT/IMG-1122.jpg)

Got the wife to supervise   8)   me heating up the cylinders in the kitchen oven to accept the liners. Checking for size and a liner in place. Oven at 450 degrees did the trick.

(https://i.postimg.cc/YqMmF3Sp/IMG-1125.jpg)

(https://i.postimg.cc/nrt90KYG/IMG-1126.jpg)

(https://i.postimg.cc/zvSbMLxZ/IMG-1127.jpg)

Back to the lathe with the cylinder in soft jaws with the first operation to face of the liner to the finished length of the aluminum.

(https://i.postimg.cc/zfbLN2xk/IMG-1128.jpg)

Finish boring the liner to 2.000" with a light polish with some fine Scotch Brite.

(https://i.postimg.cc/66L8BvfF/IMG-1129.jpg)

The last operations was to turn the 3.250" diameters on each end that fits the cylinders head and bottom plate bores.

(https://i.postimg.cc/bJ1sDDcD/IMG-1130.jpg)

A look at the cylinders in place on the engine base.

(https://i.postimg.cc/8cHc42CT/IMG-1132.jpg)
 




Title: Re: Travis Steam Engine 2 X Size
Post by: b.lindsey on April 23, 2019, 02:51:43 PM
Glad the shrink fit of the liners went well. That can always be a tense moment  :). Things are coming along well Brian.

Bill
Title: Re: Travis Steam Engine 2 X Size
Post by: Ye-Ole Steam Dude on April 23, 2019, 04:46:07 PM
Hello Brian,

I agree with what Bill said....that operation can make you pucker a bit :ROFL:

Really like the looks of the extra "fins" on the cylinders  :ThumbsUp:, I had not though about that  :noidea:

I know it is two times larger than the original design, but the latest "assembly" photos make it look a whole lot bigger. Beautiful workmanship all the way around  :NotWorthy:

Have a great day,
Thomas
Title: Re: Travis Steam Engine 2 X Size
Post by: Admiral_dk on April 23, 2019, 09:37:29 PM
Fine work so far  :praise2:  but man it is BIG  :o   not really a model any more (in my book) as it is big enough to do real work  ;)
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on April 24, 2019, 07:40:25 PM
Pushing forward .........   :ThumbsUp:

A couple of more notes on the cylinders. The 1/4-20 mounting holes on each end of the cylinder need to be inline with each other. A simple fixture made from a squared up piece of aluminum with the
bolt pattern to match the cylinder and orientated to the fixture edge.

(https://i.postimg.cc/Z5TfVgCY/IMG-1137.jpg)

(https://i.postimg.cc/Prb3bhfF/IMG-1138.jpg)

Cylinder head in place.

(https://i.postimg.cc/NjpdV4H6/IMG-1133.jpg)

Next up are the pistons. Made from 303 stainless steel and will have a fit to the cylinder bores with .0005" per side clearance. The pistons are 2.000" in diameter and 2" long.

After rough turning the O.D. the  counterbore in the end of the cylinder was cut to depth followed buy a rough drilling to depth for the rod end slot.

(https://i.postimg.cc/Y0X25Q2v/IMG-1140.jpg)

A final finish cut to size on the O.D.

(https://i.postimg.cc/rp6y2VTN/IMG-1141.jpg)

Set up at the mill in my mounted 4 jaw chuck with brass shim protecting the piston diameter. Center of the piston dialed in.

(https://i.postimg.cc/zBFGk99S/IMG-1142.jpg)

Using a 5/8" end mill to cut the slot for the connecting rod.

(https://i.postimg.cc/Kjcvp0bX/IMG-1144.jpg)

Checking for width with adjustable parallel . Final width will be .750".

(https://i.postimg.cc/TY4YQjHS/IMG-1145.jpg)

Indicating the finished slot for drill and reaming for the wrist pin. The wrist pin will be a 5/16" dowel pin.

(https://i.postimg.cc/vZx8K1Jm/IMG-1147.jpg)

Drill and ream for the wrist pin.

(https://i.postimg.cc/Gh2mkgzG/IMG-1148.jpg)

Set up to add two 8-32 taped holes for set screws to hold the wrist pin.

(https://i.postimg.cc/66zQ4xVB/IMG-1149.jpg)

Drilling and tapping.

(https://i.postimg.cc/s2pjVkDd/IMG-1150.jpg)

That's it for now.  :cheers:   Headed to N.A.M.E.S. this weekend. Hope to have fun displaying some of my other builds.   :cartwheel:




Title: Re: Travis Steam Engine 2 X Size
Post by: b.lindsey on April 24, 2019, 07:54:10 PM
Have fun at NAMES and take some pictures if possible :)

Bill
Title: Re: Travis Steam Engine 2 X Size
Post by: yogi on April 24, 2019, 10:23:58 PM
The pistons look fantastic!  :ThumbsUp: :ThumbsUp: :ThumbsUp: :ThumbsUp:
Thanks for showing all the different set ups. Itís very informative.  :cheers:


Have fun at NAMES.
Title: Re: Travis Steam Engine 2 X Size
Post by: Jimmy Detroit on April 24, 2019, 10:31:25 PM
Brian,

Great posts on  your new project.  Looking forward to seeing it and you at the NAMES show.

Jim O 
Title: Re: Travis Steam Engine 2 X Size
Post by: Ye-Ole Steam Dude on April 25, 2019, 08:37:17 AM
Hello Brian,

Coming along nicely and the stainless pistons should add a bit of inertia and aide in the engine running better at slower speeds. Have a great time at NAMES and share your photos with us.

Have a great day,
Thomas
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on May 02, 2019, 05:05:49 PM
Working on the connecting rods ........

Machining the blanks for the overall size of the connecting rod plus stock for the end cap. Doing both blanks at once.

(https://i.postimg.cc/wMhS2Cxk/IMG-1152.jpg)

Sawed off the stock for the end caps and finish machined the thickness. Set up to drill and counter bore for 8-32 SHCS.

(https://i.postimg.cc/RVmrhZGp/IMG-1153.jpg)

(https://i.postimg.cc/rwh7fCT7/IMG-1154.jpg)

Next setup drilled and tapped the main section of the connecting rod.

(https://i.postimg.cc/0NbFFM2j/IMG-1155.jpg)

The next operations were to bore the wrist pin hole for a press fit for a 660 bronze bushing. And the opposite end for the split bearing bore.

(https://i.postimg.cc/1Rwhyq0N/IMG-1156.jpg)

(https://i.postimg.cc/K8cd7p6n/IMG-1157.jpg)

I made two clamping / locating bushings and drilled ,reamed and tapped a scrap piece of aluminum for two shoulder bolts. This will be a fixture to do the connecting rod contour on the Tormach. As pictured, the shoulder bolts must
enter into the reamed holes in the plate for location.

(https://i.postimg.cc/CLs3qpQh/IMG-1158.jpg)

Rod blank clamped in position with the fixture in the mill vise.

(https://i.postimg.cc/yNttH1kP/IMG-1159.jpg)

Milling the outside contour.

(https://i.postimg.cc/L4z7cMRt/IMG-1160.jpg)

Finished contour.

(https://i.postimg.cc/fyjrmY52/IMG-1161.jpg)

Machining the bronze split bearings for the lower end.

(https://i.postimg.cc/fTCPbjVk/IMG-1162.jpg)

With the bearings installed a dowel pin hole was drilled thru both halves of the bearing for a retainer pin.

(https://i.postimg.cc/PrTchFrB/IMG-1163.jpg)

The final operation was to add two .0625 dowel pin holes in each rod cap.

(https://i.postimg.cc/FHKBkdSp/IMG-1164.jpg)

Finished  :)

(https://i.postimg.cc/pL11fWYH/IMG-1166.jpg)

Title: Re: Travis Steam Engine 2 X Size
Post by: Ye-Ole Steam Dude on May 02, 2019, 06:43:18 PM
Hello Brian,

Beautiful work on the Rods and they sure look good and hefty.

Have a great day,
Thomas
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on May 03, 2019, 02:51:55 AM
Thanks Thomas !
Moving along with the build.   :)
Title: Re: Travis Steam Engine 2 X Size
Post by: yogi on May 03, 2019, 12:07:27 PM
Beautiful parts Brian!  :ThumbsUp: :ThumbsUp: :ThumbsUp:
I can see you got some "miles" out of your fixture plate. I can spot the outline of some of your previous engine builds.  :popcorn:  :popcorn: :popcorn:
Title: Re: Travis Steam Engine 2 X Size
Post by: b.lindsey on May 03, 2019, 02:46:52 PM
Great to see you back on it after the names show. Things are looking great!!

Bill
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on May 04, 2019, 01:16:07 AM
Beautiful parts Brian!  :ThumbsUp: :ThumbsUp: :ThumbsUp:
I can see you got some "miles" out of your fixture plate. I can spot the outline of some of your previous engine builds.  :popcorn:  :popcorn: :popcorn:

A few more face cuts and holes and this one goes in the scrap box. Not Swiss cheese yet, but soon.  :o
Title: Re: Travis Steam Engine 2 X Size
Post by: jeff l on May 04, 2019, 02:46:31 AM
Great job on the engine so far .
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on May 07, 2019, 10:13:37 PM
Machining the valve bodies and lower guide blocks and the valves.

These parts did not scale up double size as to look proper so I went off in another direction.

After squaring up the aluminum stock for both haves I rough drilled thru and did a short location bore on position in each block.

(https://i.postimg.cc/FKZXXFHw/IMG-1167.jpg)

The final bore will be for a .750" x 3" long 660 bronze bushing that will be Loctited in place. This will be the liner for the valve rods. The valve rod will be .500" 303 ground stainless steel bar stock.

(https://i.postimg.cc/R09xYJ4c/IMG-1168.jpg)

The locating bore is used at the lathe to accurately locate the part in the four jaw chuck. The finish bore will be completed here. Only varied less than .002" off center at the opposite end.

(https://i.postimg.cc/tJ8LNYBn/IMG-1169.jpg)

Pictured with the bushings installed.

(https://i.postimg.cc/yxDMRFyz/IMG-1170.jpg)

At the mill the mounting holes were drilled 17/64". The air passages were drill 3/16" and a spot face for a o-ring was done. This will be where the valve body mounts to the head. The layout lines visible show where the intake and exhaust ports are drill on the sides.

(https://i.postimg.cc/66SJXmB6/IMG-1174.jpg)

There are two bushed lower valve guides the will also serve as a location for a made dog point screw to to prevent the valve rod from turning.
Machining the blocks and turning bushings at the lathe.

(https://i.postimg.cc/zB2m3dWj/IMG-1176.jpg)

(https://i.postimg.cc/4N9CNQ36/IMG-1177.jpg)

The guides prior to tapping a 10-32 thread in the sides for the dog point screw.

(https://i.postimg.cc/gJ2Fz9wj/IMG-1178.jpg)

A quick over view of the valve rod. Cutting a slot in the end for a 1/2" diameter ball bearing.

(https://i.postimg.cc/1tpQ8C4k/IMG-1180.jpg)

A view of the valve rod with the key way milled, bearing installed and turned air passages. I will be adding the valve springs in the end of the valve block with a cap on the end. A short counter bore in the end of the rod for the spring.
The springs will not be visible when assembled.

(https://i.postimg.cc/nz8xcbVK/IMG-1191.jpg)
Title: Re: Travis Steam Engine 2 X Size
Post by: jeff l on May 08, 2019, 03:20:44 AM
fantastic!
Title: Re: Travis Steam Engine 2 X Size
Post by: Ye-Ole Steam Dude on May 08, 2019, 12:56:06 PM
Hello Brian,

More beautiful work and adaptation to the 2x scale  :praise2:. I was wondering which valve arrangement you were going to use and your new design looks great  :ThumbsUp:.

Have a great day,
Thomas
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on May 08, 2019, 01:28:08 PM
Thanks for the views and comments, guys !   :cartwheel:

The cams .....

The engine cams are 2" in diameter with a .750" thru bore. The offset is .500 ".
I decided on a different approach to machining than using a four jaw chuck in the lathe to do the offset. I machined the offset at the Tormach mill first to produce the " hub ".

(https://i.postimg.cc/6qKyZwCn/IMG-1171.jpg)

After this operation I chucked on the hub and finish bored the thru hole.

(https://i.postimg.cc/qRyNgg6p/IMG-1172.jpg)

Added two 1/4-28 tapped holes in each cam for set screws. A brass pad will be added under the set screws at assembly.

Finished cams.

(https://i.postimg.cc/HLfJpbxS/IMG-1173.jpg)
Title: Re: Travis Steam Engine 2 X Size
Post by: b.lindsey on May 08, 2019, 03:00:30 PM
The cams turned out very well Brian. Nice finish on them  :ThumbsUp:

Bill
Title: Re: Travis Steam Engine 2 X Size
Post by: yogi on May 08, 2019, 07:04:59 PM
Fantastic! The engine is coming along nicely!  :popcorn: :popcorn: :popcorn:

Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on May 13, 2019, 06:01:40 PM
Intake and exhaust manifolds / piping.

Machining adapters for the plumbing to attach to the valve bodies.

Cutting the outside shape on the Tormach.

(https://i.postimg.cc/mgqv23vF/IMG-1182.jpg)

Two different setups for soft soldering the adapters and tubing fittings. Second picture shows the setup for the intake manifold to position the inlet fitting for soldering.

(https://i.postimg.cc/76rjSHYH/IMG-1183.jpg)

(https://i.postimg.cc/9f7v4R2g/IMG-1188.jpg)
Title: Re: Travis Steam Engine 2 X Size
Post by: Ye-Ole Steam Dude on May 13, 2019, 06:10:01 PM
Hello Brian,

Most impressive how you have laid out the plumbing, this surely will look good on the engine. Out of curiosity, what size is the tubing?

Have a great day,
Thomas
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on May 14, 2019, 02:07:42 AM
Hello Brian,

Most impressive how you have laid out the plumbing, this surely will look good on the engine. Out of curiosity, what size is the tubing?

Have a great day,
Thomas

Hi Thomas,

It's 1/4" sweat fittings that use 3/8" diameter copper tubing.   ::)  McMaster Carr has a good selection.
I used the " K " grade, heavy wall, tube that comes in straight lengths.  ( nice and straight ) Non bendable type. Overall I didn't think the pricing was reasonable.

Brian
Title: Re: Travis Steam Engine 2 X Size
Post by: yogi on May 15, 2019, 06:10:32 PM
The piping looks fantastic Brian!
Thanks for showing your set ups. It is always very informative and I always learn a lot!  :ThumbsUp: :ThumbsUp: :ThumbsUp:
Title: Re: Travis Steam Engine 2 X Size
Post by: gbritnell on May 15, 2019, 07:46:53 PM
Really nice fixture work Brian!
gbritnell
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on May 17, 2019, 02:14:28 PM
Starting some assembly ..........

Just a picture of the setup I used for the base of the engine that I decided to make. Made from cut down aluminum angle that I had and not part of the original plans. Milled some decorative pockets in
the face of the angle.

(https://i.postimg.cc/5N9DWKDN/IMG-1193.jpg)

Next picture of some of the engine parts after all the bench work and final finish work was completed. Considerable amount of time was spent to remove all the mill marks and other blemishes from machining.
Sometimes more difficult than the original making of the parts, but well worth the effort in the end.

For those wondering about the brass flywheel.  :o  Made from a piece of brass I have been hording for over twenty plus years and finally decided this project was a good place to use it.  ;D
6-1/4" diameter x 1-1/4" wide at the rim.

(https://i.postimg.cc/cHQP0ps6/IMG-00.jpg)

Picture of the engine base plate mounted to the stand. Fastened thru the hidden leg of the angle to tapped holes in the engine base plate.

(https://i.postimg.cc/Zn42RwRH/IMG-1196.jpg)

Next step was to make and finish a wood base for everything. There are internal blocks soldered to the brass end plates that are tapped for mounting bolts that hold the wood base in place. Not visible.

(https://i.postimg.cc/SNZ3S7pL/IMG-1201.jpg)

Start with the crankshaft and the cams . Set in place on the center bearing with some lube on the journal.

(https://i.postimg.cc/GtKNsvTC/IMG-1202.jpg)

First end plate and bearing mounted to the one end of the base.

(https://i.postimg.cc/BZBRyfYV/IMG-1203.jpg)

Another view of the end. Some of the finish work involved removing the markings from the hex bolts and polishing the ends.   8)
Ends of the locating dowels are visible. All the dowels are a slip fit.

(https://i.postimg.cc/t4YfYZXK/IMG-1204.jpg)
Title: Re: Travis Steam Engine 2 X Size
Post by: Ye-Ole Steam Dude on May 17, 2019, 02:40:09 PM
Hello Brian,

WOW is just not good enough, how about WOW. Oh well still not good enough, but you should get the idea. Beautiful work and I have too many questions to ask, but will ask how did you get all the plate to look so clean and smooth? The base is a really nice touch and the family photo is excellent. I must think that your engine is going to run even slower than mine, cannot wait to see it in action.

Have a great day,
Thomas
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on May 18, 2019, 02:42:41 AM
Hello Brian,

WOW is just not good enough, how about WOW. Oh well still not good enough, but you should get the idea. Beautiful work and I have too many questions to ask, but will ask how did you get all the plate to look so clean and smooth? The base is a really nice touch and the family photo is excellent. I must think that your engine is going to run even slower than mine, cannot wait to see it in action. Scotch-Brite is another item I use,too.

Have a great day,
Thomas

Thanks so much, Thomas !

I bench out all the mill marks using self stick " emery " paper for wood working on a granite plate made for wood workers to sharpen plane blades, chisels, etc. This keeps things flat and true. The matte finish is from very fine glass bead blasting. I've been using with success a solvent based wax for a protective finish. It's difficult to keep smudges and finger prints off everything at assembly , but the wax is working good.
It's called Bri-Wax and comes in colors, obviously I'm using clear. I've experimented with other coatings and this is working well so far.

Ask away on anything else that you may be interested in.

Brian
Title: Re: Travis Steam Engine 2 X Size
Post by: b.lindsey on May 18, 2019, 03:01:31 PM
Wowo indeed!!!  Love the family shot of all the parts too!!  :ThumbsUp:

Bill
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on May 18, 2019, 03:07:13 PM
Some more assembly of the lower engine parts.

The opposite end plate installed.

(https://i.postimg.cc/HkK3tPsS/IMG-1205.jpg)

Picture of the bearing retainer mounted to the end plate.

(https://i.postimg.cc/wv5Vgq5P/IMG-1206.jpg)

Another view of the assembly.

(https://i.postimg.cc/R0HdpQWv/IMG-1207.jpg)

The cylinders mounted in place.

(https://i.postimg.cc/50W3hYzL/IMG-1208.jpg)

Parts for the piston assembly with the connecting rod and end cap,wrist pin and set screws that hold the pin in place.

(https://i.postimg.cc/Fz9xKMDK/IMG-1209.jpg)

Piston with rod in place. Flat on wrist pin visible where the set screw seats.

(https://i.postimg.cc/RZqXKz96/IMG-1210.jpg)
Title: Re: Travis Steam Engine 2 X Size
Post by: Dave Otto on May 18, 2019, 04:32:51 PM
Amazing finish on all the parts Brian!
It sure is going to be a beautiful engine.

Dave
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on May 20, 2019, 02:36:18 PM
Final assembly pictures ..........

Piston and rod assembly going into one of the cylinders.

(https://i.postimg.cc/qR9TkBp8/IMG-1211.jpg)

Cylinder head with the SHCS that hold it to the cylinders.

(https://i.postimg.cc/XNCWs5gx/IMG-1212.jpg)

Details of the valve rod and bearing with lower guide. The dog point screw to stop rotation and the valve spring.

(https://i.postimg.cc/PJYkNGq0/IMG-1213.jpg)

One of the manifolds showing the adapter with a o-ring in place.

(https://i.postimg.cc/Fsb44Q8L/IMG-1214.jpg)

Cylinder head detail with my logo engraved and a valve spring in place at the end of the valve.  ( Logo was done with non rotating diamond drag engraving on the Tormach. )

(https://i.postimg.cc/CxmpRsFM/IMG-1216.jpg)

The valve block cover that retains the valve spring. Drilled with a vent hole to prevent any trapped air to bleed out when the valve is in motion. ( drag engraved )

(https://i.postimg.cc/Hs1gRLZm/IMG-1222.jpg)

Showing the air intake manifold side of the engine. This is where the fixtures for soldering was so important.

(https://i.postimg.cc/634xWjzF/IMG-1215.jpg)

Exhaust side of the engine with engraved tag with credit to Travis for his fine design.  :ThumbsUp:  ( Rotary tool engraving on the tag. )

Thomas, thanks so much for sharing your plans !   :cheers:

(https://i.postimg.cc/L5dKntb5/IMG-1219.jpg)

End view picture.

(https://i.postimg.cc/8kWgxY76/IMG-1220.jpg)

One more picture of the engine with a gear I found in my " junk " that I greatly modified to place on the opposite end of the crank for looks.  8)

(https://i.postimg.cc/sxpFSMkc/IMG-1225.jpg)


Title: Re: Travis Steam Engine 2 X Size
Post by: Ye-Ole Steam Dude on May 20, 2019, 03:05:18 PM
Hello Brian,

You are more than welcome and I am honored that you choose one of my steam engine designs to build. The amount of time and effort that you have spent on building this show piece is evident in every detail of the construction. I am sure that everyone on this forum will agree that you have produced a magnificent work of art. Thank you for sharing all of your work on this thread I have really enjoyed following along.

Thank you again and have a great day,
Thomas

PS; that rear quarter view of the flywheel end is beautiful. :praise2: :praise2: :praise2:
Title: Re: Travis Steam Engine 2 X Size
Post by: b.lindsey on May 20, 2019, 03:09:27 PM
Simply gorgeous Brian and top notch photos as well to show it off. Please remember to add it to the "Showcase" section as well. Looking forward to seeing a video of it running too!!!

Bill
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on May 20, 2019, 03:20:15 PM
Thanks Thomas !!

Brain not working   :insane:  " showcase section "  ?

Thanks Bill
Title: Re: Travis Steam Engine 2 X Size
Post by: b.lindsey on May 20, 2019, 04:06:03 PM
Brian, there is a whole section called "The Showcase"

This would go under engines under that main heading. Not for build logs, just for those final photos and videos of completed projects.

Bill
Title: Re: Travis Steam Engine 2 X Size
Post by: yogi on May 21, 2019, 02:21:13 PM
Beautiful engine Brian! A true masterpiece!  :ThumbsUp: :ThumbsUp: :ThumbsUp:

 :popcorn: :popcorn: :popcorn:
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on May 21, 2019, 05:48:27 PM
A video of the engine running. Starting air pressure less than two pounds per square inch, ramped up to ten, then back down.

dZaxecOXy4E
Thanks for all the views and comments !!
Title: Re: Travis Steam Engine 2 X Size
Post by: yogi on May 24, 2019, 06:06:38 PM
A superb engine Brian! Running beautiful!  :ThumbsUp: :ThumbsUp: :ThumbsUp:

 :popcorn: :popcorn: :popcorn:
Title: Re: Travis Steam Engine 2 X Size
Post by: Ye-Ole Steam Dude on May 24, 2019, 06:28:09 PM
Hello Brian,

I emailed the link to your youtube channel to my brother so that he could see your completed Steam Engine running. After he finished viewing the video he called me and told me that if he ever had a heart condition, he wanted your to do the work on him... :ROFL: :lolb:. Now that is what I would call a good compliment.

Have a great day,
Thomas
Title: Re: Travis Steam Engine 2 X Size
Post by: tvoght on May 24, 2019, 08:20:57 PM
Congratulations on another beauty, Brian.
--Tim
Title: Re: Travis Steam Engine 2 X Size
Post by: toolznthings on May 24, 2019, 08:24:25 PM
Hello Brian,

I emailed the link to your youtube channel to my brother so that he could see your completed Steam Engine running. After he finished viewing the video he called me and told me that if he ever had a heart condition, he wanted your to do the work on him... :ROFL: :lolb:. Now that is what I would call a good compliment.

Have a great day,
Thomas

I'll have to say that's quite a compliment, but I'm a little rusty in the heart repair department.   :ROFL: