I need an external switch/input to cause a FEEDHOLD condition in Mach3.
Specifically, I intend to physically pass by a mechanical switch to check that my tool holder is EMPTY before I try to reload a new tool.
There is plenty of time to let a FEEDHOLD command stop motion without using E-Stop.
If FEEDHOLD is not the best solution, then how can I pause the machine from an external signal (switch)
that will not lose step counts and can easily be restarted.
You guys are great. How you put up with and respond to ALL of these NEWBIE questions is AWESOME.
THANKS

Setup an OEMTRIGGER in port/pins.

Then In hotkeys set up the oem# 1001 to that OemTrigger#.

NOW when you push your external button MACH3 will FeedHold.

(;-)TP