Power Cabristor: DRV8825 missing microsteps

Conclusion

If you have a board with a DRV8825, a motor with lower voltage rating then your supply, and when you move the 3D printer slowly (100 mm/min feedrate) it does not move smoothly. Then you need to put this circuit between your motor and your controller board using 1N5404 to 1N5408 diodes:

 

来源: Power Cabristor: DRV8825 missing microsteps