Quote Originally Posted by Neale View Post
Mach3 certainly disables limits when homing if you use common home and limit switches. Seems likely that it does the same with separate switches - I'm sure I remember reading this in the manual somewhere but that was a long while ago.
If that's the way it is, it ain't going to be changed now. If I had my machine available, it would be an easy test - set homing going and trigger a limit switch.