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I have glued 1" styrofoam to 1/2" plywood on my n-scale layout and am now fitting the track and roadbed.(perhaps I was too hasty gluing the foam down?) I would like to install atlas under table switch machines, but the thickness of the plywood, subroadbed, and roadbed exceeds the 1" stated in the instructions. What do I do from here? Cut a trench in the foam, install the machine and patch it up? Or will the tortoise machine be a better fit. I have not had a look at one yet. Any suggestions greatly appreciated as always. Thanks for your time. Tony
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