Foamboard Cutter / Hobby Knife Depth Stop

This is a depth-stop for cutting foamboard and other materials partially through. it is compatible with most utility and hobby/x-acto knives. I designed it for RC Airplanes, which sometimes rely on cutting mostly through the board but not through the backing paper. It has a flat bottom and the sides are flat to allow it to slide along a straight edge for clean cuts. The front and back are angled to a point to assist with accuracy. It requires 2 M3 x 20 mm screws for securing the blade.