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:
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.