gkaindl
commented
3 years ago I think in v1, the printer would also home automatically after G32, but it doesn't anymore in v2, even though that wouldn't be necessary anyway, I suppose.
Correction: After G32 S1, the printer is correctly homed and zHeight is set correctly in v2 too, but the Z height on the display controller is still showing ???.? -> Seems to be just a display issue here, maybe?
I've switched from v1 to v2 on my delta printer, keeping everything else the same. In my slicer, I've configured the print prelude to run bed auto-leveling before each print, because the bed is kept in place by plastic clamps, which easily introduce a small tilt whenever the bed is removed and replaced.
This is the g-code I use in the print prelude:
In v1, it would home the delta printer, then run the 3-point auto-leveling, then continue with the print. In v2, it works the first time, but crashes with
"Failed to trigger probe endstop! Bed crash?"the second time.Now I suppose that is because in v2, the auto-leveling matrix and homing interact in a different way, so that the small delta introduced by the already active auto-level matrix causes the check in
zprobe.cppforZ_CRASH_THRESHOLD_STEPS(which is just 50 steps, but my steps/mm is 320, so the difference is tiny) to trigger the error shutdown.I'm not sure if this is a bug or a configuration mistake, but it worked in v1. Is there a more correct way to run auto-leveling before a print in v2, e.g. either homing first via
G28or not, or by clearing the auto-level matrix first withM320? I think in v1, the printer would also home automatically afterG32, but it doesn't anymore in v2, even though that wouldn't be necessary anyway, I suppose.