A bit of progress, ref all home is now going through X,Y and Z axis. I don't know what has changed, but I might have had two setups, ( fixtures do you call them?) Only trouble is that once the home switch is detected, the motors pause , but the Z and X axis don't reverse to back off, they just go through the switch another 5 mm or so, set zero and then move on to the next axis. If I reverse the homing direction of X and Z everything is OK. i.e.. they back off in the reverse direction, But that's not really a fix. I'm just altering where I home to suit. I'd rather zero Z at the bottom of the stroke.
Is there any setting to reverse the back off from switch direction? I'd think it should automatically be the reverse of the zeroing direction?