Stepper Motor with ZT-ASY-00101 Wiring Harness

This product has been discontinued.

This Nema 17 Stepper motor offers substantial holding torque at a low 2.8VDC. It's the same model as used in the Openbeam Kossel 3D printer.

Out of stock

SKU: 52716 Categories: , , Tag:


This LDO-42STH47-1684AC stepper motor is the same unit that powers the Openbeam Kossel 3D printer. It's been researched, tested, tortured, and vetted as the unit of choice for this impressive 3D printer. If you're wanting to build your own, here's a good place to start.

Comes complete with motor wiring harness.


  • LDO Motors LDO-42STH47-1684 Bipolar stepper motor
  • 1.8° step angle (200 steps per rotation)
  • 2.8V rated voltage
  • 1.68A / phase1.65 ohms / phase
  • 2.8mH inductance / phase
  • 4.4kg*cm (61.1 in*oz) holding torque
  • 68 g*cm2 rotor inertia
  • 0.35kg (12.3oz) mass
  • 0.20kg*cm (2.78 in*oz) stall torque
  • 8mm body length
  • NEMA 17 form factor
  • CE and RoHS approved

Additional information

Weight 0.3405 kg
Dimensions 11 × 10 × 4 cm




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Warning: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
Please visit for more information. This item was manufactured prior to August 31, 2018.

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