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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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12V Stepper Motor with Motor Shield Rev 3: motor turns then shakes - Motors, Mechanics, Power and CNC - Arduino Forum
Technical Specifications and Performance Characteristics of a 1.8° 42mm High Torque Hybrid Stepper Motor | PDF
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Stepper Motor with Motor Shield: motor turns, then shakes - Motors, Mechanics, Power and CNC - Arduino Forum
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