This is my take on those fidget spinners that are becoming so popular. I downloaded a bunch and I noticed the biggest problem was that they were all too light. This is my take on the popular 4 bearing spinner but with 3 5/8 / M8 hex nuts glued into the slots between the bearings. With this added weight I was able to get much longer spins.
The name and nut location were inspired by Coheed and Cambria.
2 Finger Pads (There are 2 per .obj)
4 608 bearings
3 5/8 / M8 hex nuts
Sandpaper (depending on your printer's accuracy)
Hictop Mendel (Prua i3 clone)
You could probably print it at a lower resolution. I wanted it make it really smooth in my hand. I'm not sure if infill matters because of the size.
Test spin to check balance
adjust bearings if necessary
glue on nuts
Fix finger pad in place with a single drop of glue on the post. I suggest holding off from installing the pads until you're sure it's nicely balanced.