rocky bough
I tried to start my first print and suddenly when moving in the X direction on the bed the gantry would jerk back in the y axis. If I move in the Y axis it also jerks slightly in the X.
When I tried my first print it lost the center location and ended up attempting to print on the rear right corner of the bed, too.
It's never had an issue with motion up until now and since I put in the first print it's doing it consistently. Video included.
left sparrow
Belts should be equally tensioned otherwise such things can happen. Also check the bearings…
rocky bough
well, I took the cable wrap off and it's behaving better now. Wonder if something in that was causing interference
left sparrow
Things like chains or sleeves can push/pull the toolhead. Check if there’s some tension (in special positions/directions)
rocky bough
well, the cables for that are loose enough to have some slack at all points.
And of course after I check on that, it gets worse. Belts are tensioned well and are moving freely but now when I run the kinematic function it won't move to the front left.
weak pike
Are your pulleys fixes properly on the motor shafts?
rocky bough
Are your pulleys fixes properly on the motor shafts?
Pretty sure they are. It never had this issue until today. Heck it was going fine just before the first print. Only thing I changed was reversing steppers on the extruder.
weak pike
Check the pulleys, the bearing stacks (idlers) and the belt carefully.
left sparrow
The grubscrews of the pulley (that’s what dstrelnikov did mean a few messages before). They can get loose if not secured by a threadlocker
rocky bough
The grubscrews of the pulley (that’s what dstrelnikov did mean a few messages be...
They are, and I'm not sure if it matters but I am noticing the left belt moving up and down depending on the direction it goes. I'll test them after work.
rocky bough
OK so it seems it was the belt tension but I think they still need tweaks. Getting very steady layer shifting along the y axis.
Y axis is the upper belt, right?
rocky bough
Ain't pretty but it printed.
rocky bough
Think we solved this issue at least. Thanks y'all.