Knurled Tri-Spinner Fidget Widget / Triple Bearing Spinner

thingiverse

I'm a huge fan of tri-spinners and I've made them for numerous individuals. The only thing that really gets under my skin is having to use 4,608 bearings for each spinner with three of them merely serving as counterweights. I discovered that half-inch nuts have roughly the same weight-to-size ratio as an 608 bearing, so I modified the design to use them instead. I also tweaked the knurling in the SCAD file to eliminate partial knurling on the edges. Perfectionism can be a real challenge for me. This project is essentially a remix of my other spinner, but with the added benefit of flush nuts and bearing caps. To assemble this project, you'll need: * 1 x 608 bearing * 3 x half-inch nuts The entire assembly press-fits together without any glue.