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Worm Gear Nema23 Stepper Motor 3.5A L2.1inch Gearbox Ratio 30:1 Speed Reducer for CNC DIY Router: Amazon.com: Industrial & Scientific
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Small Reduction Stepper Motor - 12VDC 32-Step 1/16 Gearing : ID 918 : $4.95 : Adafruit Industries, Unique & fun DIY electronics and kits
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Stepper motor - NEMA-17 size - 200 steps/rev, 12V 350mA : ID 324 : $14.00 : Adafruit Industries, Unique & fun DIY electronics and kits
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