Reply To: Z-axis shifts up or down more than it should

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#29574

Glenn
Participant

The other day I noticed that the back bearings on the tower, the bolts that were left very loose, were not in contact with the gantry tubing.

I tightened all 4 bolts up until a 3 bearings in each group were fully contacting the gantry tubes. Now the load on the bearings seems to be helping the Z stepper support the gantry.

So far no Z slips with a Z transit speed of 480mm/min