[Esmithiii]

Guys -

I am very new to this, so please forgive me if these are dumb questions. I did try to search for answers prior to posting, but didn't have much luck.

Here is the question- is it normal for a NEMA 17 stepper motor to make a minor buzzing noise when idle?

Here is the setup:
Power supply: 12V power supply from old PC (XT Style)
Stepper Motor Driver: SMAKN TB6600 32 segment / 4.0A
Stepper Motor: Model 17HS19-2004S

All of this is being run by a Raspberry PI 3

Stepper moves as expected, but it hums / buzzes when not moving, and makes a fair amount of noise when moving.

Thanks in advance,
Ernie

[CitizenOfDreams]

That's perfectly normal. The "buzzing" at idle comes from the high frequency PWM the drives use to feed the motors. The noise while moving - well, it's just the way steppers are. Get some earmuffs or turn the radio up. :-)

[Esmithiii]

That's perfectly normal. The "buzzing" at idle comes from the high frequency PWM the drives use to feed the motors. The noise while moving - well, it's just the way steppers are. Get some earmuffs or turn the radio up. :-)

Got it! Thank you so much for the quick response. I doubt I will hear anything once the router is running, but just wanted to be sure I wasn't damaging anything.