Well after several miserable attempts to make a foam cutter I finally broke down and spent a few dollars and bought one.
The old train transformer I bought on EBAY turned out to be bad and it was too many months since I bought it to ask for a refund. So I tried different power sources and different types of guitar strings but was never happy with the results. So last night I decided to just buy some foam cutting tools.
A cool thing I discovered in the hobby store was a foam hardener that I can use after carving the foam. I may do this instead of using fiberglass as it looks like it makes it hard as a rock. This will be super for building my Rosie the Robot body and especially when making new heads for the Bus Stop Robots. I need to get those robots completed. I'm kicking around using earth magnets to hold the legs and arms on the robots so they can be removable for transport.