Z-Axis shift between left and right

[ChrisH90]

Hello all, I have some issue on my A30 with the two steppers left and right. For first I have to say that both stepper drivers are adjusted to 0.9V Vref. Anyway, after a long print for about 10 hours there is a shift of the hight between the left and the right stepper motor (at least 3mm between left and right lead screw). All screws are tightened and the spindles works fine and easy if you power of the motors.
My Idea now is to couple both sides with pulleyes and a belt (but I`m not sure if this is the best way for the stepper).
Has anyone the same problem and solves this with any other solution?

[William]

Hi, I hope this can help you:https://www.youtube.com/watch?v=_7XE--p ... e=youtu.be

[ChrisH90]

Hi William, not really. I also tried to use the auto leveling sensor but it is not as accurate as I wanted to have.
This also does not help with my problem because the shift becomes bigger and bigger with every print. In some time the shift is high enough to break the X Axis.

[KinCatia]

Your problem sound the same as mine was. The X beam was assembled with one end higher than the other so when I leveled the beam to the frame it was under load so gradually one side dropped relative to the other until they were 2 mm different. All that point I had no more problem except square sides weren't really square. I took the beam off and adjusted it and all seams well at the present. Did you find when leveling the beam turning the lead screw it felt tight? Mine did but doesn't now.
See
https://www.geeetech.com/forum/viewtopi ... 65&t=68801

[Oliveira]

The setting to show categories in reverse order is applied to the X axis. When you send one series to the secondary axis (which is NOT called the Z-Axis, by the way, but the secondary Y-Axis), Excel also generates a secondary X-Axis, which is hidden by default visit official site

[jbalat]

After printing for 24hrs the right side is now about 3mm higher than the left. The printer was jammed on the same layer for ages until I paused it.