@CR3D said in Massive Vibrations with Duet3 & NEMA23 drives:
@sebkritikel
Thank you for your response! The part was printed as your picture shows ....
I use the Duet 3 and I also think the problem is the firmware settings and not the steppers themselves ...
I can feel the ripple along the whole object ... that's that strange for me ...
the axes themselves run very smoothly and do not jam.
A change in the acceleration values ββcan affect the shape of the waves ...
@JoergS5
ok now i understand what you meant!
Yes, I've already checked it, the axes run very smoothly. The printed image occurs in a cold and in a warm state.
I have been building the mechanical structure for about a year. Cartesian with two separate Y-motifs. So far it has always been NEMA 17 motors and the Duet Wifi.
That was the reason why I first blamed the bigger motors or the other drivers.
I once read a post by @dc42, where he said NEMA 23 tend to vibrate.
on the subject of M593:
How do you find the Find the right frequency?
Unfortunately I cannot find where it was written, but if the picture is as you say, the ripples are likely not caused by the Y stepper motors, but the the movement of the print head wobbling parallel to the X axis while the gantry moves down the Y axis.
Please run the test DC42 recommended and report back to us.
For specifically M593:
'To measure the ringing frequency, take a print that exhibits ringing on the perimeters (for example a cube), preferably printed single-wall or external-perimeters-first. Divide the speed at which the outer perimeter was printed (in mm/sec) by the distance between adjacent ringing peaks (in mm). When measuring the distance between peaks, ignore peaks close to the corner where the ringing started (these peaks will be spaced more closely) because the print head will have been accelerating in that area.'
If the perimeter is 60mm/s, and the 'waves' are 2mm pitch, 60mm/s / 2mm = 30 1/s, so "M593 F30; frequency 30hz"