I am using a NEMA 17 (17HD4005-22B) with a Big Easy Driver and an Arduino Uno R3. I am using the motor to move a threaded rod, which then pumps a liquid. The system basically functions as a linear actuator.
After trying to move a much too high load, I noticed that the stepper motor was not turning correctly. It moved erraticaly forwards and backwards a couple of steps. I also noticed to following:
- When I give it the signal to turn, I can turn the shaft very easily with my hand in either direction
- When it is powered and without any signal to turn, I can turn the shaft easily with my hand in either direction most of the time. If I crank the potentiometer all the way, I can not move it anymore
- I connected the motor to the stepper drivers of an i3-clone printer, and the motor does not turn. The previous two observations remained
- I connected the Big Easy Driver and Arduino to one the motors of the 3D-Printer and the 3d-printer motor did not turn
- Both windings of the broken motor have the same resistance
Is it possible that the high load caused the stepper to break?
Is it possible the driver is also broken?
How can I check any these possibilities?