Get the best of 3D Printing in your inbox, plus exclusive offers and recommendations from the Shapeways team.
Ring created using Functy. Constructed from 6 parametric curve threads each with a formula similar to the following:
(x, y, z) = (8.5*cos(a*(2*pi)), 8.5*sin(a*(2*pi)), 2.5*cos(5*a*(2*pi))),
radius = 0.5.
The diameter of the ring is 16mm on the inside (size 5½/K½). Send me a message if you'd like me to create a different sized version.