"Singing" steppers - delta printer


I was using Marlin firmware and the steppers were very quiet - no noise.
I uploaded repetier and when using the printer steppers are very noisy - I would say they are singing when printing.

Is there any solution for this? What should I configure.h to correct stepper singing problem?

Best regards,


  • Try same acceleration/jerk as with marlin (in eeprom). Singing is normally frequency change from acceleration and if that differs you get different sounds. Apart from this we have the same signals.
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