If you start a print, and only do the G28 skipping the G29, does it still start too high off the bed?
I've had issues with the Marlin 1.1.0-RC6 and G29 to the point I stopped using it. For my case, if I did G28 and then G29 it would start like your 2cm above the bed, but if I skipped the G29 part it would start right on the bed like it was supposed to ofcourse this meant I had to make sure my bed was perfectly flat and level.
I've had issues with the Marlin 1.1.0-RC6 and G29 to the point I stopped using it. For my case, if I did G28 and then G29 it would start like your 2cm above the bed, but if I skipped the G29 part it would start right on the bed like it was supposed to ofcourse this meant I had to make sure my bed was perfectly flat and level.