SLA Release Buttons

Marko Tadros had the very clever idea to create an inverse beveled circle to make releasing his prints easily. This is possible because Moonray S and other SLA printers can print at very steep overhang angles. You can simply drop this at the edge of your support raft, and your spatula will pop the print right off.

His original design is posted here
https://www.365digitaldentistry.com/product-page/er-easy-release-3d-printing-botton

My feeling is that having a polygon instead of a round c