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  1. 12-06-2020 #2
    Kitwn's Avatar
    Lives in Don, Tasmania, Australia.
    Kitwn
    Last Activity: 4 Weeks Ago Has been a member for 7-8 years. Has a total post count of 985. Received thanks 118 times, giving thanks to others 52 times.
    Not sure about Mach3 but in LinuxCNC the gantry runs to the switch at relatively high speed, backs off a few mm and then runs back to the switch again more slowly to get a more consistent homing reference. It finally backs off again to the set parking position.

    One guess would be your final parking position is a negative value on the wrong side of the switch.
    An optimist says the glass is half full, a pessimist says the glass is half empty, an engineer says you're using the wrong sized glass.
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