Hi, having built a small CNC I am having problems with drivers so to check motors I put together an Arduino Uno with a CNC Shield and DRV8825V Stepper drivers, I am just driving 1 axis "X" driving a Nema 17 motor (NEMA17 0.9° 40mm 400 steps/rev Stepper Motor (JK42HM40-168), after frying a Uno board …

Arduino and CNC Shield

studiopaul October 15, 2017, 4:02pm 4

I placed all 3 jumpers on mine for smoother steps and adjusted vref.. was a great improvement!

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