R ring

thingiverse

Customized version of http://www.thingiverse.com/thing:1076605 Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=1076605 Instructions Using the following settings: width_ratio is set to 2 Dproximal is fixed at 21 Dmiddle is set to 18 The number of facets, $fn, is optimized for smoothness at 50 ring_thickness is precisely set to 3 ring_angle is accurately set to 60