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how to minimise stepper motor vibration.

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MD_SHAHRUKH

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Hello,
I am controlling two stepper motor to draw a circle in a small model of CNC. I have made a circle, but now the motor is producing a lot of vibration. I am using NEMA 17 stepper motor of current rating 2 amps, and giving supply with L298(not a stepper motor driver) of 12V. When the motor is rotating at its maximum speed the motor does not produce any noise but as the delay increase and motor starts reducing its speed it produces too much sound. I have used full stepping to rotate the motor. What would be the cause of this sound or vibration. and How can overcome this issue?

Thank you.
Regards
 

Hi,

* half step mode
* microstep mode
* mechanical damping.

It´s a known behaviour of stepper, thus there are lot of documents and solutions available. Do a search.
* Every stepper motor manufacturer should provide informations.
* Every stepper controller module manufacturer should provide informations.
* Every stepper controller IC manufacturer should provide informations.

***********
It´s not clear how you currently dirve the motor: in constant voltage mode or constant current mode.
Recommended is: constant current mode.


Klaus
 

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