Heys All,
I hope someone can help me here, it seems to be something dumb I'm doing and spacing on something simple/obvious. I hope at least...
I've got a Prusa I3, with a new RUMBA board. I've got the servo/brace hooked up and working great (M280/M401/M402). The problem I have is how to do the offsets. The instructions (https://github.com/ErikZalm/Marlin) say to mark a spot, center the nozzle on it, zero out the axis, raise the nozzle 10+ mm and then position the switch on the same dot. The problem I have is that once I zero out axis, I can't go negative so I cant move in all directions and likewise center the switch - what is that I'm doing wrong here?
Thx in advance...
