Auto_Bed_Leveling: Enhanced G29 command

[DarkAlchemist]

I have no feeler gauges but I was doing the math and my leadscrews + 1.8 degree 1/16 steppers means I have a revolution on my Z axis of 0.00025mm per step (takes 4000 steps to equal 1mm of travel). So, that number, or larger, my mechanical parts will do.

[Roxy]

I have no feeler gauges but I was doing the math and my leadscrews + 1.8 degree 1/16 steppers means I have a revolution on my Z axis of 0.00025mm per step (takes 4000 steps to equal 1mm of travel). So, that number, or larger, my mechanical parts will do.

It doesn't have to be as accurate as a feeler gauge. You could raise the nozzle and put something like a dice under it and carefully move the nozzle down so it almost touches it. Then take the dice out and move the nozzle to one of the corners. Slide the dice under the nozzle and see if you have very close to the same clearance. And then do the next corner.