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Electric Screwdriver
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A tiny USB-powered screwdriver built with an N20 motor - easy to print, easy to build. MiniDrive is a small USB-powered electric screwdriver built with an N20 geared motor. Designed for 3D printing, it requires only a few parts, and the case assembles without screws. You can use it even without power, because the wiring is designed for plug braking. This lets it work as a manual torque screwdriver. It can be printed in PLA, but PETG is recommended for durability.BOM1 x USB-C breakout board (works only with a USB-A to USB-C cable, not C-to-C)2 x Mouse/Micro switches1 x N20 geared motor (my build uses 80 RPM @ 5V)WiringUses a staircase switch system for forward/reverse control.Circuit diagram and simulator: Falstad CircuitJSAssembly Guide</figur
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