Bed not moving correctly?

Hi i have a rough surface problem lately and started digging. I found i can move every bed arm by about 1mm up. The backlash isn't backlashing? Or this is normal? Also i setted up dial gauge and moved bed by 1mm up and down via default web interface and i think this isnt good deviation...
2 Replies
TheTik
TheTik5mo ago
that last video, moving up and down like that is fine. Gravity is keeping backlash away.
blacksmithforlife
The deviation looks to be 0.05ish mm if I am reading that dial indicator correctly?

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