Z axis zeroing issues [resolved] (5 replies)

Hello

I have been trying to set my Z axis manually and following the instructions found on the forums. I do not want to use the z probe as the measurements always keep varying to wildly due to the bad lighting I use. I have manually levelled the bed and have managed to get it nice and level even with the bed heated.

I have followed a few guides and no matter what I do I keep finding that when I start a print the nozzle always seems to decide that zero is now about ~1mm (don’t have my feeler gauges to hand to confirm exact hight) above the bed. I have done the following steps on my last attempt

M561
set the z height to ~0.1mm above bed using paper
G92 Z0
G1 Z10 to move z axis
G1 Z0 to confirm it returns to 0

But when I start to print ormaxis.g from the sd card my z homing effort is now completely ignored and the printer seems to choose a new z height.

Any ideas?

Thanks