2x6 Gridfinity Caliper Holder

This is a remix of the Gridfinity Caliper Holder by darious. The original file left a lot of open space underutilized so I added in spaces for all of the basic parts of my 3d print calipers from Werka. I also took the opportunity and the open space to find a slot for my most frequently used box cutter. Fits on a Prusa Core One bed diagonally just barely. I added a few options for the cut model if people have smaller beds.