Intermittent Auto Bed Leveling Endstop Crashing Issues

[mwyrick]

Thanks so much for your reply! I changed the Z_RAISE_BEFORE_HOMING to 10 as you suggested and also added the code suggested in the link to the Y axis moving during Z raise and my problems appear to be resolved!

Glad it works for you. These types of problems can be a pain to track down. If you added the fix for the Y moving your Z offset might not be 9.7 anymore. If your nozzle is too high to print, check the offset again. The code change will remove the 4mm error so -5.7mm would be the offset I expect for you. It fixes both the Y Moving and the incorrect height after G28. If you always do a G28 then G29 you would not see the problem. I do a G28 only a lot of times, I use the G29 more to measure the bed than to correct it.