How in the world do you go about checking the breakout board? I am sort of afraid to switch the drive from x to y etc. moving up twice or three times is one thing but to traverse x or y could be a disaster. might even hit the side of my machine with the bit. Oh, yes reason for so much concern limits do not work on this board never did and probably never will. I do not understand it but that is the way of it. Oh, the name I typed wrong it's 3D Routers he was located in southern Illinois. Not that it matters today.