20XX Extrusion Right Angle Alignment

I designed this tool to make sure that the angles on a laser engraver I was building are square.  By bolting the tool to one extrusion you can ensure that the perpendicular extrusion is at 90 degrees.  This makes squaring up the extrusions much eaiser.

Mounts with 20mm bolts and some hammer nuts.  One side has a flange to ensure it is staight on the extrusion.  Print a second one mirrored for the other corner.

Supports needed on the build plate for sure.  I drilled out all of the holes afterwards to clean them up.