I just finished my touch-n-go Z axis similar to the shop droids floating head touch n go z axis. I built mine from there z axis and scraps of aluminum for the floating torch head.

I have these little 2 pole micro switches. There is a COM, and a Normally Open connection on it. I went into Mach 3 and set Config/Ports Pins/Input Signals/ Z home and set the port to 1, and the pin number to 10. Which connection goes where from the two pins on the micro switch to my breakout board. I think I connect the Com terminal to pin 10 of my breakout board, and the Normally open to the +5v connector on my breakout board??? Is that a correct assumption?? Any help would be appreciated.