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SpiRoll 螺旋滚珠柱
SpiRoll
Price£0 List:£0.35
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by scooter250

Fun little fidget toy. I made this first with stereolithography around 20 years ago. I have also made it with SLS, FDM, and MJP. The trick is to orient so you can support the balls. I typically recommend orienting to lay it flat.