US ring sizes
thingiverse
US sizes 4-12, according to a size guide from wikipedia.inner diameter = 0.8128 * S + 11.63, where S is the US sizerecommend printing with 0.1 mm layer height for better dimensional accuracy and slightly crisper text. each size was modeled at 0.1 mm bigger than the standard to allow for typical filament smoosh, and the final product on my bambu labs printer turned out about perfect. real-world sizes vary from seller to seller tho so be aware this isn't a definitive guide but pretty ok for something you can print.size (US)inner diameter (mm)414.94.515.3515.75.516.1616.56.516.9717.37.517.7818.18.518.5919.09.519.41019.810.520.21120.611.521.01221.412.521.8i used onshape to model this, file available here
With this file you will be able to print US ring sizes with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on US ring sizes.