@shinmai said in Auto leveling not doing it's job?:
Other than the pretty exhaustive list, assuming everything is double and triple checked, one thing that comes to mind would be failed ABL due to threshold being too low or too high. Technically could be failed ABL due to outside factors, too, but it's really unlikely, because the leveling would have to fail quite consistently and almost identically twice at the same location.
When you ABL, does the nozzle only very lightly touch the surface, or does it do a pronounced press on the bed, possibly flexing the hotend assembly up a tiny bit? If so, and if you haven't yet done that, I guess it's worth checking the strain gauge trim pot. Note that the workable area for the potentiometer is comically tiny, so use incredibly tiny adjustments. I'd use a multimeter to note the original value down before doing any tweaking.
I've got my sensitivity tuned quite tight¹ and my bed leveling is silent, with the original values it did make a tiny tap, but it shouldn't ever actually press on the glass, just lightly touch it twice and move to the next spot on the grid.
1) Had to route the cable assembly and bowden tube differently, to minimise outside stress on the bowden coupler. Reccommend doing this for the cable assembly anyway, to prevent it from breaking due to the rather dumb original design that places virtually all stress on the cable on the short length of unprotected ribbon cable.
I'm doing all of the things right, already have the modified cable and bowden thing.
ABL is just not working, so my CR-6 Max is useless, this is the second week of owning it, calibrating it, testing it, not a single print. nothing. useless. getting pretty fed up with this thing.
It's just the firmware that doesn't work, it makes the EEPROM.bin on the SD card, but seems to not use it properly.
Also there is no firmware for the CR-6 Max, not even the stock one is downloadable anywhere.
Most are saying i need to put washers under the bed, THEN WHAT IS THE POINT OF ABL IF I DO IT MYSELF?!
