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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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Amazon.com: 3pcs 3D Printer Nema 42 Bipolar Stepper Motor for RepRapMotor 0.4A 34mm Height 4 Leads 42BYGH34H-23D : Industrial & Scientific
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