Stone Tumbler
thingiverse
A Handheld Rock Polisher Born from 3D Printing. Essential Components Include: Four precision-crafted ball bearings of type 629 Two lengths of 40mm PVC pipe, expertly cut to fit A high-torque Nema17 stepper motor, designed for heavy-duty use Glue and rubber bands, strategically applied to secure the assembly The design allows all components to be printed without support materials. Initial Plans for Stepper Motor Control Circuit Have Been Laid Out.
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