100+ Ball bearings in standard sizes (608, 6200, 6202, 6204, 6206, 6000 and 6305 etc.) - uses airsoft 6mm bb balls or 4.5mm steel balls
UPDATED: Slightly larger tolerance (0.1mm diameter for the bearing balls). Choose random seams if you printer is not well-calibrated. I recently needed a slimmer ball bearing for a spinner project, so I did my own take on ball bearings to…
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