Hey! This thing is still a Work in Progress. Files, instructions, and other stuff might change!
45 Degree Razor Blade Plane
I made this to allow me to cut 45 degree angles on the edge of foamboard.
Mind your fingers
This first version doesn't work as well as I'd hoped. I think angling the blade parallel to the cut will help it make smoother cuts. As it is, it binds and sort of "chews" through foam rather than making a clean cut.