This is an upgraded design which features an internal locking system, beveled edges inside and out, and now locks on the side, rather than the middle. This is the first part of a new printable system that will let you create some very interesting pieces that connect together. Cuff is very durable, should be printed no less than 200 microns with 30% infill minimum for strength. Be sure to remove all supports cleanly. NOTE: This will print single complete cuff.
Internal is oval, 2.5inx2in (Big enough for everyone) Wall thickness is half an inch. Hole for hinge pin is 3/16in (Use 1.5in roll pin from home depot)