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Making cavity for Tortoise machine through foam?

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  • Member since
    February 2008
  • 2,360 posts
Making cavity for Tortoise machine through foam?
Posted by kasskaboose on Saturday, April 1, 2023 4:06 PM

Should I continue to make cavities in the 2" foam sub-roadbed for Tortoise switch machines?  The machines will be used to flip hard-to-reach turnouts. The 0.039 piano wire will go through the middle hole of the Atlas Code 83 turnouts.

I made a cavity for one Tortoise and it it worked properly. Unfortunately, that didn't happen through the 2" foam.  Did I do something wrong?

"How to secure the Tortoise once you carve out a cavity?  I screwed the Tortoise to a wood block. The block will get glued to the foam (along the sides of the wood) and on top (to sit underneath the cork roadbed).

Welcome thoughts!

  • Member since
    December 2004
  • From: Bedford, MA, USA
  • 21,483 posts
Posted by MisterBeasley on Saturday, April 1, 2023 5:17 PM

You don't need a big cavity, just a long wire.  I glue a piece of 1/4 inch plywood to the underside of the foam and attach the Tortoise to that.  I even did it through 4 inches of foam once.  Worked fine.  A half inch hole is fine.

It takes an iron man to play with a toy iron horse. 

  • Member since
    September 2002
  • From: Maricopa, AZ
  • 269 posts
Posted by DanRaitz on Sunday, April 2, 2023 10:31 AM

Circuitron makes a device just for this situation.

It's called the " Remote Tortoise Mount" #800-6100.

Tortoise (circuitron.com)

 

Dan

If women don't find you handsome, they should at least find you handy .... Red Green
  • Member since
    February 2008
  • 2,360 posts
Posted by kasskaboose on Sunday, April 2, 2023 8:35 PM

Thank you all. 

I need to figure out how to properly bend the piano wire b/c what I currently have won't work.  In fact, I threw out a piece of wire after it got bent and was unable to operate properly. 

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