Magnetic Seam Guide

I wanted a magnetic seam guide for my sewing machine, but wasn't happy with the commercial offerings. My machine has a small screw in the way, so there is a cut-out in the bottom so the guide misses it. It printed just fine laid flat with no supports as the gap is small enough for the printer to bridge.

It requires three (3) 10 x 2.3 magnets and a pause during printing to install them.