Spin the Cube, Cone, Hyperboloid

thingiverse

The hyperboloid is definitely worth experimenting with; there's so much math involved in it. In this design, I sliced the cube along its major diagonal and created some space to attach a 608 bearing for a desktop math toy. It's easy to assemble and spins smoothly. Among the Files 1. The top part of a 50mm hyperboloid. 2. The base (lower part) with two levels of tolerance: 7.98mm and 7.90mm refer to the diameter of the axle going into the inner ring of the 608 bearing. To Print & Assemble A resolution of 0.2 mm worked well for me. If the axle is too tight, please sand it a little bit. If it's too loose, try a piece of adhesive tape or a drop of super glue. Once the bearing (608) is pushed in, it might be hard to remove. I left some notches around to help with that. Try using a small screw driver and be patient. See Also Spin the Hyperboloid. https://www.thingiverse.com/thing:3015098