Lately i have received named error. It's not that I have printed much. First print failed due to something like "extruder distance can't be zero" verifcation in mainsail showed there it's set for every extruder.
Homing Z works well, doing a bedmesh right now (previous one was horrible 0.5 mm difference. (should be less than 0.2).
Variance on measurment is around 0.06 mm.