Z banding or artifact on only one print and one printer?
Came home to a print with what looks like terrible z banding, so i tried a couple cubes to see if it replicated. The cubes turned out perfect, using the same slicer and settings. This was the 1st print after a pid tune and thermistor value change, since i had the wrong one previously. However printing a couple more objects with no banding makes me think its not the tune. Could it still be the tune or could it be another issue?
If the tune hadn't been saved or applied at the time, it could have been from bang-bang mode causing expansion and contraction leading to z banding.
@Phaedrux the save had been applied and i had restarted it before to make sure it applied. Im running a round 2 with the same .stl to see what happens since i did the tune a few more times. Although i think the speed the y axis moves at sometimes is its resonant freq which seems to be about 60mm/s. Lowering the current to 600 help the noise and 500 helps further, although they're rated for 1a, so ill have to see how it'll do.
repeating the .stl is outputting the same issue. Printing standard squares shows no evidence of z banding.
Going to try on a second printer.
Printing on another printer shows similar z banding despite being a belted z axis. seems like an stl issue