@dc42 said in Movement above 50 mm/s loud:
Actually it can still be resonance, because the elasticity of the magnetic field and the rotor inertia of the motor combined to give a resonance. If you can tell me the rotor inertia, rated current, holding torque, step angle and actual current for your motor then I can work it out.
It should be all in the datasheet:
https://www.omc-stepperonline.com/download/17HS19-2004S1.pdf
But I have to say, I used other motors before, where the printer was loud, too.
I have to check them running, without the belts, too.
I changed the motors yesterday but the test without the belt I only did on the motors from stepper online.