Step 1: Getting Started Making a Very Cheap Foam Cutter
2. Obtain resistance wire I got a 100' roll off eBay for less than 5$ free shipping. Craft store has it also.
3. You need a few feet of wire or even an old extension cord.
4 two screws and a screw driver
5 a spring even a small one from an old click ink pen will work
6. Two alligator clips work best but even clothes pins will work ( yes I'm a junkyard dog)
7 your sons old train transformer any gauge will work
Step 3: Enjoy and Have Fun
Have fun creating but most important be careful and stay safe. !!