BI-SPINNER

thingiverse

You can make this using standard skate bearings. The finger pads must be super-glued in place. To achieve this design, I created custom pads that differ from other designs you may have seen. Those designs often have a tendency to compress the pads too far into the bearing, causing excessive friction and a poor spin every time. These new pads, on the other hand, can be removed with ease. It's also essential to rotate the part 180° so the large side of the pads is facing down onto the print bed. I used PLA for the printing process and was satisfied with the outcome.