LDO Stepper Motor (42STH40-1684AC)


(1 customer review)

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LDO Stepper Motor (42STH40-1684AC) US$17.95
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LDO Stepper Motor (42STH40-1684AC)

LDO stepper motor for A,B and Z axis of the Voron Switchwire printer.

  • NEMA 17.
  • 1.8° Step Angle.
  • 200 Steps Per Revolution.
  • 1.68 Amp
  • 4.5Kgf cm Holding Torque.
  • 40mm Body.
  • 24mm Output Shaft (5mm diameter) (16mm D-Shaped)

More technical specifications and drawing in the datasheet:


Additional information

Weight0.32 kg
Dimensions10 × 9 × 6 cm



1 review for LDO Stepper Motor (42STH40-1684AC)

  1. j.stiff (verified owner)

    I “dropped” this motor in as a replacement for my Ender 3 V2 extruder motor. The spare cable was useful to allow me to swap the wiring slightly, as the Ender and LDO configuration is slightly different, took about 1 minute of trial and error to get the motor spinning smoothly in the correct directly. Now it’s working PERFECTLY. The old motor ran at about 60-80C, this one runs cold – didn’t change the Vref at all. And most importantly, no more skipped extrusion steps.

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