Jump to content

Nominations for Tractor of the Month
Garden Tractors and Parts on eBay



Photo
- - - - -

O-scale train engine


  • Please log in to reply
78 replies to this topic

#31 jdcrawler OFFLINE  

jdcrawler

    tinkerer

  • Senior Member
  • -GTt Supporter-
  • Contributor
  • Member No: 1639
  • 3,173 Thanks
  • 1,724 posts
  • Location: Madison, Indiana

Posted February 09, 2015 - 08:18 PM

Sorting thru the bag of side rods and valve gear, I find that most of the parts that I need are there.
I got out the expansion links and radius rods for one of the chassis assemblies.

SAM_0345_zpsxhx4x6gm.jpg


The mounting brackets for these two parts are about .070 wider than the expansion link and radius rod together.
I made up a small spacer and soldered it to the inside of the radius rod to take up the space.

SAM_0348_zps8sozlzox.jpg


Here is a look at how the two parts now fit into the mounting bracket.
You can see the spacer to the inside of the rod with a straight pin holding both parts in place.

SAM_0349_zpshogtxkgx.jpg


There wasn't any rivets or pins for joining the linkage arms together so I'm using small nails that are .040 diameter.
The parts are joined together with the nail going thru both parts and then the nail is soldered on back side.
Then the excess length of the nail is cut off and the end is filed down a little to smooth it off.  

Here are the return crank, eccentric rod and expansion link assemblies.

SAM_0350_zpsa8ah58a7.jpg


And the radius rods and reverse lift link assemblies.

SAM_0354_zpsnakttnfi.jpg


There aren't any union link arms so I'm going to have to make them.
I have end pieces that were cut off of some valve linkage arms that I shortened for another project.
These are trimmed to the correct length and the cut end is rounded off.
Then a .045 diameter hole is drilled thru all four pieces.

SAM_0351_zpsnwna02mn.jpg


Here are the finished union links.

SAM_0352_zpsexvholkp.jpg


There is no provision for mounting the union links to the crosshead assembly.
Looking at photos of the 2-4-4-2 type locomotives, I see that the bottom flange on the crosshead extends down below the lower crosshead guide and the union link attaches to it.

Similar to this drawing.

A-%20valve%20linkage_zpszjtaxesj.jpg


I can't solder an extension to the lower part of the crosshead because the design of the guide assembly would then not allow the crosshead to be removed from the guide bars.
So I need to make a bracket that will bolt onto the face of the crosshead that the union link can attach to.
This bracket also needs to set out about .100 from the face of the crosshead in order to line up with the valve linkage.

I drew out the design for this bracket on a sheet of .012 thick brass.
A hole is drilled thru the end of the bracket.
This will be trimmed out to form a notch in the end of the bracket.

SAM_0353_zpslmyojzn0.jpg


The bracket is cut out and the notch is cut into the end.

SAM_0356_zpsckrgfkho.jpg


The bracket is bent to shape and the mounting holes are drilled in place.
The end with the notch is bent so that it fits over the steam cylinder shaft on the front of the crosshead.
This will keep the bracket from rocking back and forth when it is screwed to the center of the crosshead.
The union link and combination lever are attached to the bracket.

SAM_0358_zpsuhfch6se.jpg

Here is the bracket attached to the crosshead.
This whole assembly can be removed so the crosshead can be slid out of the guide bars.

SAM_0357_zpsewonktmf.jpg


  • Texas Deere and Horse, wvbuzzmaster, IamSherwood and 5 others have said thanks

#32 Cvans ONLINE  

Cvans

    Tractorholic

  • Senior Member
  • -GTt Supporter-
  • Member No: 5412
  • 4,472 Thanks
  • 5,006 posts
  • Location: Eastern SD.

Posted February 09, 2015 - 11:34 PM

It's really fun to watch your progress. I have one complaint though, green has been my tool color since 1968. This ain't good.  :D


  • jdcrawler said thank you

#33 KennyP ONLINE  

KennyP

    FORDoholic

  • Super Moderator
  • Staff
  • -GTt Supporter-
  • Contributor
  • Member No: 2253
  • 28,372 Thanks
  • 39,644 posts
  • Location: Collinsville, Oklahoma

Posted February 10, 2015 - 05:32 AM

Wow! Too small for me to work on! Good job, Ray!


  • jdcrawler said thank you

#34 skyrydr2 ONLINE  

skyrydr2

    Tractorholic

  • Senior Member
  • -GTt Supporter-
  • Contributor
  • Member No: 5032
  • 3,404 Thanks
  • 3,155 posts
  • Location: Gardner, Massachusetts!

Posted February 10, 2015 - 10:59 AM

Holy small !! I used to love working on little things like that, but not so much now LOL, hence the 1/3 scale Sopwith pup.
  • jdcrawler said thank you

#35 jdcrawler OFFLINE  

jdcrawler

    tinkerer

  • Senior Member
  • -GTt Supporter-
  • Contributor
  • Member No: 1639
  • 3,173 Thanks
  • 1,724 posts
  • Location: Madison, Indiana

Posted February 12, 2015 - 03:53 PM

Made up the two steam supply pipes that run from the side of the steam dome down to the steam cylinders on the rear chassis.
These are formed from 3/16 diameter brass tube.
It was an interesting job to bend these so they wrap down around the boiler and curve forward to end up along side the casting for the steam cylinders.
Here is a view of the two tubes on the underside of the boiler.

SAM_0361_zpswhwfvrdl.jpg


The straight brass tube was bent to shape using this tool for bending brake lines and the ends were cut off at and angle.

SAM_0367_zps2fqwvggd.jpg


The end with the angle cut on each tube fits snugly to the side of the steam cylinder casting.

SAM_0362_zpsocrooj1h.jpg

SAM_0363_zpsspafpx9z.jpg


Holes were drilled thru the foot boards and in the sides of the steam dome.
The steam supply pipes were put up thru the holes in the foot boards and fit into the sides of the steam dome and then soldered in place.
Here is the left side with the chassis mounted on.

SAM_0364_zpsis0fzpjp.jpg


And the right side.

SAM_0365_zpswpg35lcc.jpg


Here is how they look from the top.

SAM_0366_zpsf6njlues.jpg


Edited by jdcrawler, February 12, 2015 - 04:05 PM.

  • Texas Deere and Horse, wvbuzzmaster, IamSherwood and 4 others have said thanks

#36 KennyP ONLINE  

KennyP

    FORDoholic

  • Super Moderator
  • Staff
  • -GTt Supporter-
  • Contributor
  • Member No: 2253
  • 28,372 Thanks
  • 39,644 posts
  • Location: Collinsville, Oklahoma

Posted February 12, 2015 - 04:11 PM

Won't be long and you'll be building a 'fire' in this thing! Looks great!


  • jdcrawler said thank you

#37 toomanytoys84 ONLINE  

toomanytoys84

    Aaron

  • Senior Member
  • Member No: 45129
  • 8,227 Thanks
  • 5,070 posts
  • Location: Ohio

Posted February 13, 2015 - 10:04 PM

Amazing work. Do you use some sort of magnification? Like one of those big super lighted on an arm? I'd need to aim two together
  • jdcrawler said thank you

#38 jdcrawler OFFLINE  

jdcrawler

    tinkerer

  • Senior Member
  • -GTt Supporter-
  • Contributor
  • Member No: 1639
  • 3,173 Thanks
  • 1,724 posts
  • Location: Madison, Indiana

Posted February 14, 2015 - 09:46 AM

Amazing work. Do you use some sort of magnification? Like one of those big super lighted on an arm? I'd need to aim two together

 

I have a 4 inch magnifing glass mounted on a flxable arm.


Edited by jdcrawler, February 14, 2015 - 09:50 AM.


#39 superspeedex OFFLINE  

superspeedex

    gttalk enthusiast

  • Senior Member
  • Member No: 40756
  • 851 Thanks
  • 959 posts
  • Location: kittanning pa

Posted February 14, 2015 - 12:30 PM

Surprised you dont make working model steam engines


  • jdcrawler said thank you

#40 jdcrawler OFFLINE  

jdcrawler

    tinkerer

  • Senior Member
  • -GTt Supporter-
  • Contributor
  • Member No: 1639
  • 3,173 Thanks
  • 1,724 posts
  • Location: Madison, Indiana

Posted February 19, 2015 - 03:51 PM

There is about a 3/8 high open space between the rear chassis frame and the underside of the cab.

SAM_0365_zpswpg35lcc.jpg


I'm going to make op a pan to fill this space.
The pattern is first made up out of a piece of cardboard and then transferred to a piece of brass.

SAM_0379_zpstmv4nb6b.jpg


The finished pan is bent to shape and the brake cylinders and levers are soldered to it.

SAM_0376_zpsrdhjnizz.jpg


Here is how it looks mounted under the cab.

SAM_0378_zpsvrpgfq07.jpg


I also got the foot boards made for each side of the smoke box and the headlight is mounted.

SAM_0377_zpsnvy9ut8f.jpg


  • Texas Deere and Horse, IamSherwood, KennyP and 2 others have said thanks

#41 Texas Deere and Horse OFFLINE  

Texas Deere and Horse

    RED Wild Hogs, Horses & Deeres

  • Staff Admin
  • Staff
  • -GTt Supporter-
  • Contributor
  • Member No: 1435
  • 14,464 Thanks
  • 15,392 posts
  • Location: East of San Antonio Texas

Posted February 19, 2015 - 03:54 PM

Very impressive Ray, I would love to have the patents to do that kind of detail work.


  • jdcrawler said thank you

#42 KennyP ONLINE  

KennyP

    FORDoholic

  • Super Moderator
  • Staff
  • -GTt Supporter-
  • Contributor
  • Member No: 2253
  • 28,372 Thanks
  • 39,644 posts
  • Location: Collinsville, Oklahoma

Posted February 19, 2015 - 04:39 PM

Nice work, Ray!


  • jdcrawler said thank you

#43 Cvans ONLINE  

Cvans

    Tractorholic

  • Senior Member
  • -GTt Supporter-
  • Member No: 5412
  • 4,472 Thanks
  • 5,006 posts
  • Location: Eastern SD.

Posted February 19, 2015 - 07:32 PM

Sure is looking nice Ray! 


  • jdcrawler said thank you

#44 UncleWillie OFFLINE  

UncleWillie

    wabbit wangler

  • Senior Member
  • -GTt Supporter-
  • Contributor
  • Member No: 10399
  • 12,731 Thanks
  • 7,693 posts
  • Location: Gaston county, NC

Posted February 19, 2015 - 08:16 PM

Beautiful


  • jdcrawler said thank you

#45 Sawdust OFFLINE  

Sawdust
  • Senior Member
  • Member No: 36549
  • 4,521 Thanks
  • 2,829 posts
  • Location: Butler, Kentucky

Posted February 19, 2015 - 08:29 PM

Coming along very nicely Ray, outstanding detail. Have you ever used the glass jewels that go into the light housings. They have a silver back & reflect the smallest amount of light to the point it looks like their illuminated. It's been fun following your craftsmanship.
  • jdcrawler said thank you




Top