Update - 4/25/17: I shortened the length of the screws by 1 mm. This left me with the most snug fit on the bearing without over-torquing the screw and possibly breaking it.
I decided to do my own take on a fidget spinner. I just started making simple shapes in fusion 360, and after getting a rough idea of the layout and some fine tuning we have this spinner. This uses standard 608zz bearings for the spinner and weights.
If you don't have a 3D printer but still want my design please consider checking out my etsy page.
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