What you really need is a hot wire for nice clean cuts. [Elite Worm] built a hot wire foam cutter that can cut any type of foam with ease, be it Styrofoam or grey craft foam. There are a ton of ...
A foam cutter built like a coping saw but held parallel to the wire would offer much better control. [Techgenie]’s handheld hot wire foam cutter is a simple build based on a single 18650 and a ...