MGiraffe nozzle head keeps hitting the bed

#1

Edit: Updated marvin firmware and problem solved

#2

Video is listed as removed.

I’d suspect the z-probe. Use a serial terminal and check what M119 returns when the probe is both clear and “touching” the bed.

Mine was faulty, a short in the v+ wire was making it intermittently work. I located the bad spot and spliced it.

#3