Atom Tri bar fidget spinner

thingiverse

My go-to try bar spinner is this one I've made. The stainless steel outer balls have a groove built right into them so they spin freely. I uploaded three different STL files for varying levels of precision. To install the stainless steel outer balls and the center bearing, I use an arbor press. I also uploaded three STL files with different tolerances. My CR10 works best with the 12.92 file, but if that's too tight, try the 12.94 or 12.96 file. The magnetic caps are top-notch. They might need a bit of sanding to fit snugly into a 608 bearing. Spinner: * Three stainless steel balls, each half an inch in diameter * One 608 Bearing * A way to press the stainless steel balls into the body of the spinner; I use a small arbor press Caps: * D3H1 magnets, three sixteenths of an inch in diameter and one tenth of an inch thick; I bought them from K&J Magnetics * Super glue * A way to press the magnets into the caps; I use a small arbor press