This is as true for insulation board as it is for the ubiquitous ... If you have bigger, more complicated foam-cutting jobs in mind, why not build a CNC version out of e-waste?

Foam board insulation is easy to use and a great DIY way to add some insulation. It comes in standard-size 4×8 sheets and ...

Cutting foam is pretty tricky without a hot wire cutter ... He designed the frame in SketchUp and cut it out with his CNC router, although a saw will work just as well for MDF.