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Amazon.com: RTELLIGENT Nema 17 Stepper Motor, Bipolar Step Motor 1.5A 36Ncm 42x42x40mm 1.8 Deg for 3D Printer Extruder CNC Router : Industrial & Scientific
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Stepper Motor Specifications, NEMA 17 1.8 Degree 200 Steps-per-revolution Four-phase Unipolar Permanent-magnet Stepper-motor
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