Some of the layers of foam terrain on my layout are over 12" thick. I was faced with how to wire the track. I made this tool with a wire hanger and a small picture nail. After cutting the head off the picture nail, I made a loop with it and soldered it to a length of wire hanger. The other end of the wire hanger is ground to a point. I insert one end of a length of wire, long enough to pass through the foam, like a thread in the eye of a needle. I then push the wire hanger through the foam. It is now ready to be soldered into place as a feeder for my track.
Marlon
See pictures of the Clinton-Golden Valley RR
That’s a great idea, thanks for sharing. A little thing I learned from MR magazine is to push a thin straw (the kind that come with juice boxes) through the foam and then slip the wire through the straw. You may have to drill a small hole first. It makes wiring a lot easier.