Quote Originally Posted by brucehvn View Post
Well, I've never seen that behavior. For homing Z, I will see the message coming from the firmware that I have to home X and Y before Z if I haven't homed X and Y first. But I've never seen the thing with all axes moving. I use Repetier Host though.
Yeah, this may be a pronterface dealio and I only see that message you are talking about if I hit G29 first but in Pronterface you can home each axis individually via a button and homing X, and Y, that way still works but forget it with Z just does nothing.