Calibration cube fidget spinner

thingiverse

If you're like me, you probably have an abundance of 20mm calibration cubes cluttering up your space. And if you're also like me, for some reason, you've been holding onto these little guys despite their lack of practical use. Well, now's the time to give them a new purpose and add some much-needed spin with this fantastic fidget spinner. This spinner is specifically designed for a standard 608 skate bearing and three 20mm calibration cubes. Most people think that when making spinners, you have to press the bearing firmly in place. But I've found that with the right settings, you can achieve a perfect balance between tightness and looseness, allowing you to easily mash the bearing into position by hand. The model is precision-engineered to exacting tolerances, so be sure to scale it up in your slicer before printing. I found that scaling it up to 102% worked like a charm - I was able to push the bearing in effortlessly with just my elbow grease, and the cubes fit snugly into place, staying put even during normal use. For added functionality, I've included two caps: standard short ones and taller ones that allow you to set your spinner on a table and spin it freely. To ensure a smooth print, I scaled the caps down to 98%.