So i am doing the initial squaring and working on the crown test. I am having trouble understanding the instructions. Kinda just gave up on the squaring for now and working on the crown. If i understand correctly based on this thread (Z - axis unstoppable, out of control - #23 by martin001), when i load the gcode to repetier add g92 x0 y0 z0 to the code and should set home at current location. Right?