Ring Sizing with Numbers

Full set of rings with embossed numbers for proper ring sizing.  Models are named by US size but a conversion chart has been provided as well for international sizing.  An organizer has also been added to the file / print list.

Disclaimer:  Ring sizing charts very widely on the actual ring inner diameter, I chose the most common sizing numbers I could find.

The inner diameter has been modeled to the nominal ring size, so you may want to increase the scale by 1% to account for nozzle squish / die swell.  However I find my Prusa Mk3S+ prints within about a 50 micron (0.05mm) accuracy, so in that case no need to scale. 

FreeCAD models included.

If you're looking for a basic ring that does not have size number embossed on them, I've created a listing for those as well:  https://www.prusaprinters.org/prints/112991-simple-ring