Quote Originally Posted by motoxy View Post
I take it that these switches are homing at one end and limit at the other? Or are homing switches separate?
NO for limit switch's to be any use then you need the switch to be tripped either end. Often 2 switch's are used per axis mounted static at either end but a single switch per axis can be used if fastened and travels on each axis then triggered by use of a ramp or bracket if mechanical. Optical or proximity type switch's are also good for this type of application as the can be triggered by static magnets etc.

Home switch's can be either separate or the limit switchs can be used as double duty. Mach3 knows the difference between when the switch is triggered as limit or home.!
Basicly the switch is always treated as a limit while the machine is working but then when told to home temporely disables the switch as a limit and treats the switch as a home switch then when finished homing goes back to being a limit switch.