Screeching Stepper Motor

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Zhane

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I need some help here.
My stepper motor always produces the screeching sound no irregard to the speed I set it to how can I remove this sound??
 

Possibly rotor bearing noise.
 

Bad chopper type driver can produce sound.
This is instability problem.
 

Zhane said:
I need some help here.
My stepper motor always produces the screeching sound no irregard to the speed I set it to how can I remove this sound??
:?:
:?:hi sir, gud noon, i am boy_paksit from cebu,philippines. i am new to stepper motor and RF technology. Can i ask your schematic diagram of your circuit.? please, coz i am planning to control a stepper motor wirelessly, but unfortunately i have no idea on how to bias and contorol a stepper motor wirelessly.
It is my gratitude to receive a reply from you. Thanx...
 

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