How to cut 20x30" 1/2" Foam Board Battlements?

Question

I tryed to cut these battlements for Minas Tirith but the foam board is just to thick. Can somebody give me tips or tricks or what kinds of equipments you would find in your house?

Answer 1

Single edge blade would work.  Do you own an Exacto

knife? Or perhaps a sharp steak knife would work.

Answer 2

You can make a hot-wire foam cutter if you can get an old toaster;

it's probably not going to be around the house, but goodwill, salvation

army, and other types of thrift stores are likely to have old ones you can

get for $5 or so; you can use a short 4 or 5 inch sectoin of the heating

element wire hooked up to a 6 volt power supply or lantern battery and

use it to cut easily and cleanly through the foam board.  It's a bit more

work than just finding a good knife, but if you do a lot of work with foam

boards, it's worth it.