In this video I've made a hot wire Styrofoam cutter. I'll be using it to cut the airfoil on the wings for an upcoming model airplane build. The hot wire cutter is powered by a transformer from an old ...

Make enough attempts to cut foam using whatever you’ve got — utility knife, hacksaw, serrated plastic knife — and you’ll wish hard for something that cuts cleaner, faster, and better. While there are ...

Foam is all kinds of useful, but trying to cut it with scissors or a serrated plastic knife is usually an exercise in futility. What you really need is a hot wire for nice clean cuts. [Elite Worm] ...