Short history of what I did and how it looked, this is the switch series I used in the past, not any more.image missing /media/kunena/emoticons/laughing.png
Here is the pins for the switches due to the lack of input pins.
the BOBs I used before only had 5 input pins, 3 used by the THC, one for home/limits and one for Ohmic sensor.
I need to conform to the pins use by Linuxcnc, and that is in the process at this time.
My setup now has a single switch for each axis, located on the moving parts, there is a switch trip at each end of travel for that axis. PhillC I Understand your position as to using the table I load the material and move the torch/router bit to a starting location and tell it that is X 0.0, Y0.0, and Z 0.0 and hit the go button. As I said the table with the UCCNC software it required you to home the table at the start. But then could be used by moving to the location of 0.0 and starting an operation. The main reason for the limits is safety.