Latest Mars Firmware Release - V4.2.19_LCDM /1440x2560 /F2.7

[Hywel]

Ah!  Well I did do that - multiple times now to level the build plate on 1, 2 and 3 pieces of paper.  It always levels/homes perfectly, but then when I print it does this wierd grind thing.  Just to make this extra weird, it only happens on SOME prints, not all.  I thought it was an issue with the new Chitubox slicer and went back to my older version but that was a red herring it'd seem.  Thanks for the suggestions!

no worries. So, just to be clear, after homing, you can’t come back out of the ‘manual’ screen and click z=0 on the screen top right then?? I have that on my mars pro but I’m away from it at the mo.

That button is on the regular Mars but is disabled so it’s not user changeable.

See my post here about the "Z=0" function...

Thanks, that’s very helpful, alas my Mars is a regular one, not a Pro and that function is disabled on the regular Mars