Trains.com

Subscriber & Member Login

Login, or register today to interact in our online community, comment on articles, receive our newsletter, manage your account online and more!

Atlas under table adapter

2968 views
13 replies
1 rating 2 rating 3 rating 4 rating 5 rating
  • Member since
    December 2007
  • From: Gateway City
  • 1,593 posts
Atlas under table adapter
Posted by yankee flyer on Wednesday, January 30, 2008 8:04 PM

Kevin

Okkkkkkk here goes we will see if I am able to post this image.

I build this adapter as a rough prototype.

the paper clip is inserted in the small tube before it is bent so it desn't have to be soldered.

I cut a small piece of the larger tube (1/8") to use as a bearing so the crank would not bind.

The larger tube extends about a (1/4") below the deck.

Smooth all pieces with a very fine file. I use a very fine diamond emery board.

Glue the outer tube in place, I put some glue on the middle of it and slide it up from the bottom so that I don't get the glue inside it.

Next drop the arm in from the top with the bearing on it. You can point the lower arm in the direction that has room for the Atlas motor and solder it to the tube. Align the motor with the arm. Of course prefit and check all parts before securing them.

Also I found it best to attach the motor to a !/4" thick piece of Masonite that is 1/2" wider than the motor with pointer hanging off the end. Lock the switch blades in middle tape motor slide in middle slide pointer in loop put one screw in front end of Masonite, you can rotate back end untill get proper action. Choose paper clips that fit smoothly in brass tubes with no slop and even the loop at bottom must be right size with little slop. 

  • Member since
    July 2004
  • From: northern nj
  • 2,477 posts
Posted by lvanhen on Wednesday, January 30, 2008 8:07 PM
Just a red x?
Lou V H Photo by John
  • Member since
    December 2007
  • From: Gateway City
  • 1,593 posts
Posted by yankee flyer on Wednesday, January 30, 2008 8:11 PM

I must be missing a step some place.

OK I have it corrected

lee

  • Member since
    July 2006
  • From: Canada's Maritime Provinces
  • 1,760 posts
Posted by Railphotog on Wednesday, January 30, 2008 8:20 PM

There is no photo because the link is only to Photobucket's main page, and not to any photo in an account: [img ]http://photobucket.com[ /img] .  I've added a space in the IMG tags so it will show up.

 

 

Bob Boudreau

CANADA

Visit my model railroad photography website: http://sites.google.com/site/railphotog/

  • Member since
    October 2005
  • From: Northern Minnesota
  • 898 posts
Posted by colvinbackshop on Wednesday, January 30, 2008 11:40 PM

Thanks, Bob! I got the picture and have to say it all makes sense. Truly, a picture IS worth a thousand (maybe more) words!

In addition, I have to say that there are times that I too only get a "red X" in regard to a pcture that has been posted, but clicking on the X and then clicking on "open picture" works at my end of cyber space.

Puffin' & Chuggin', JB Chief Engineer, Colvin Creek Railway
  • Member since
    June 2005
  • From: Hot'lanta, Gawga
  • 1,279 posts
Posted by Rotorranch on Wednesday, January 30, 2008 11:49 PM

Rather than  a paper clip, I suggest you use piano wire.  Paper clips are made of soft wire that bends easily. 

Piano wire is inexpensive, and is made from much better material than a paper clip.

Rotor

 Jake: How often does the train go by? Elwood: So often you won't even notice ...

  • Member since
    November 2007
  • 1,089 posts
Posted by BlueHillsCPR on Thursday, January 31, 2008 12:38 AM

Lee,

Thanks very much for posting this photo! Thumbs Up [tup]

The prototype you built looks great...I think it is ingenious in it's simplicity and functionality.

The picture is invaluable.  I will be manufacturing some of these in the near future to convert my standard Atlas switch machines to under the table!

This looks as though it could be very similar to what tomikawaTT described using brass pen refil tubes and paper clips.  I would think the suggestion regarding piano wire might be a design improvement but I bet they work with the paper clip just fine too.

Thanks again! Smile [:)]

  • Member since
    February 2005
  • From: Southwest US
  • 12,914 posts
Posted by tomikawaTT on Thursday, January 31, 2008 2:17 AM
 Rotorranch wrote:

Rather than  a paper clip, I suggest you use piano wire.  Paper clips are made of soft wire that bends easily. 

Piano wire is inexpensive, and is made from much better material than a paper clip.

Rotor

With all due respect, I have linkages of this type, made with paper clips, that have been giving excellent service since 1981.  The advantage of paper clip wire over piano wire is that it's soft enough to precision form easily when making sharp bends.

The forces acting on these links are measured in grams, not pounds.

Chuck (modeling Central Japan in September, 1964)

  • Member since
    January 2008
  • From: Shalimar. Florida
  • 2,622 posts
Posted by Packer on Thursday, January 31, 2008 8:50 AM
Well, I was thinking about how to use the Atlas switch machines that came with my turnouts, without having them showing.

Vincent

Wants: 1. high-quality, sound equipped, SD40-2s, C636s, C30-7s, and F-units in BN. As for ones that don't cost an arm and a leg, that's out of the question....

2. An end to the limited-production and other crap that makes models harder to get and more expensive.

  • Member since
    November 2007
  • 1,089 posts
Posted by BlueHillsCPR on Thursday, January 31, 2008 9:21 AM

 Packer wrote:
Well, I was thinking about how to use the Atlas switch machines that came with my turnouts, without having them showing.

Don't just think about it...Smile [:)] Thumbs Up [tup]

This seems like a very cost effective method of doing just that.  Thanks again Lee for the info & photo. 

  • Member since
    December 2007
  • From: Gateway City
  • 1,593 posts
Posted by yankee flyer on Thursday, January 31, 2008 10:25 AM

Kevin

Lets try posting a picture again.

This is part of my layout and I,m trying to make every thing that I can myself.

[IMG

Lee  

  • Member since
    July 2004
  • From: Weymouth, Ma.
  • 5,199 posts
Posted by bogp40 on Thursday, January 31, 2008 10:50 AM
Instead of having the crank above the throwbar, you can accomplish the same with a sideways bellcrack attached below. An elongated hole as used w/ a switch motor is needed under the throwbar. Of coarse this won't be feasable on a thick foam based layout w/o a fairly stiff wire.

Modeling B&O- Chessie  Bob K.  www.ssmrc.org

  • Member since
    November 2007
  • 1,089 posts
Posted by BlueHillsCPR on Thursday, January 31, 2008 11:15 AM

 bogp40 wrote:
Instead of having the crank above the throwbar, you can accomplish the same with a sideways bellcrack attached below. An elongated hole as used w/ a switch motor is needed under the throwbar. Of coarse this won't be feasable on a thick foam based layout w/o a fairly stiff wire.

This sounds like a great modification to the principal.  In the case of the foam sub I would think the piano wire might be the way to go. Thumbs Up [tup]

  • Member since
    December 2007
  • From: Gateway City
  • 1,593 posts
Posted by yankee flyer on Thursday, January 31, 2008 2:33 PM

Kevin

Actually I see no reason that the system would not work even if the base was thicker. Just use longer brass pipe's. As long as the out side pipe is stable and lubed with graphite before you drop in the inner one. The biggest criteria is that the arms be equal and not too long.

This is an open source item make any modification anyone likes.

       my thoughts

Wishing

Blue Skys

lee

 

Subscriber & Member Login

Login, or register today to interact in our online community, comment on articles, receive our newsletter, manage your account online and more!

Users Online

There are no community member online

Search the Community

ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT
Model Railroader Newsletter See all
Sign up for our FREE e-newsletter and get model railroad news in your inbox!