SpinSpinSpin, the BEARING-LESS Fidget Spinner

thingiverse

The Story I love those little fidget spinners, but they're either way too overpriced or require parts I don't have handy on me (bearings). So, I got thinking: Are bearings truly necessary? This design challenges that argument. These fidget spinners were designed to print in one part and are simple to make! The steepest overhangs within the designs themselves are only about 45 degrees; any printer can make these. I designed them, and they consist of two parts: the inner and outer piece. The outer piece has a sharp corner around the inside edges of the circle, and the inner piece has slightly smaller grooves that are printed in place between the corners. Due to the orientation of the print, they spin freely without bearings or lube (though lube can be added for longer spin times). As you may notice, these spinners are slightly smaller than other spinners, but despite their size, they're a lot of fun and kill boredom with ease. Their size is just a special characteristic that makes them unique. ~MSR - Make. Share. Repeat. Print Settings Printer Brand: Robo 3D Printer: R1 ABS + PLA Model Resolution: .2 Infill: 20-100% Notes: Any resolution works, although the thinner the better. No support is needed. Post-Printing How to make the spinner. There are three simple steps to make this spinner. Click Print. Pull off printer. And step three? Oh wait, there is no step three! Right after you pull it off, it will immediately be free and spin. Another thing you could do is put some sand in between the moving parts. Not much, mind you, but a tiny amount will actually improve spin times after using the spinner with sand for a little bit (this is incredibly unnecessary and spins fine off the printer for usual fidgeting needs). NOTE: All these notes apply to all the spinners! How I Designed This I originally designed the spinners in TinkerCAD Beta, and the new Classic edition is a redesign from 123D. Not too different from the ordinary G1.