Z wobble or some sort of problem with gantry?
Not sure what is going on, but I am having z wobble/banding on VCore 3.1. I've tried doing a bunch of different stuff to the z axis, checking everything and making sure it is straight and the lead screws are straight and seated properly and there's no binding. I am still getting z banding but it seems to be mostly only on the Y axis movement.
The pictures here are from the left and right side, which would be the y axis and the gantry moving. It isn't really there for the X axis though, which I'll add the pictures for the X axis below.
I've tried fixing the gantry, I've untightened and reset the mounting points to straighten it to see if that was the problem but there wasn't any change really. From the shaper graph, the "y" green line is the x axis which causes the second peak. I don't really know what I should be looking for, everything is tightened, the belts are all moving correctly on the pulleys. I'm at a loss, I'm not sure if I should be looking at Z or Y, or even what anymore.
4 Replies
The X axis movement which doesn't have the same amount of banding
Is your nozzle/whole print head wobbly?
Did you tighten the X axis belt?
Does your lead screws have any room to compensate the vibrations? Oldham couplers with anti backlash can help there.
Did you tried to print a little slower to see if the issue persists?
Did you tuned/calibrated your filament? Temp, flow rate etc?
Is your z offset properly tuned? So it isnt too low/too high?
There’s a lot of variants here, those are some I could think of
Yes I've tried all that, the vcore 3.1 comes with oldham couplers. The print head has flex but its not exactly wobbly. I've tried changing the extruder as well from orbitor v1.5 to v2.0 but no change either. I tune every new spool. I guess a correction for the y resonance, the y axis there is actually the z axis, so its vibrating up and down and only for that peak.
Well I think I found it. The rear motor mount doesn't seem to go on square. I double checked the extrusions and they are at least 1mm within each other. Idk if there's a more accurate way to measure? Idk if it's the bottom extrusion that rotated or what
