Penta-Spinner

This was designed in Fusion 360. It features 5 bearings around the outside for weight along with 1 in the middle, which should be ceramic for best results. This one spins for 1:30 guaranteed and from where I've tested, it goes up to 2:20 using all metal bearings on the outside and a yellow jacket in the inside.

THIS DOES USE 608 BEARINGS

I used this model about 6 months ago when I first got my CR-10. In the second picture, you can see the spinner before I refined the settings and after. Before(On the left), I printed at a larger layer height, and at the wrong temperature. The one on the right is after I had refined the settings. You can see it looks more clean and has less stringing and other defects.