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  1. #1
    Join Date
    Jul 2012
    Posts
    62

    Problem setting up X-axis Home function with Mach3

    I have a problem getting X-axis Home function to work with Mach3 (unless I misunderstood how the Home switch is to work). I am wiring and testing the initial setup for my DIY CNC machine. When I manually trigger the x-axis home switch, the x-axis motor does not stop, nor is the readout display reset to zero. Here is what I have done so far.

    SETUP PROCEDURES
    Have wired "X HOME" switch in a normally open position. Used Mach3's "Automated Setup of Inputs" (a very nice feature, by the way) to setup the "X HOME" function. Upon closing the "X HOME" switch, Mach3 did the rest of the configuration by placing a:
    • check-mark in the Enable column,
    • assigned pin 13,
    • check-mark in Active Low
    • X in Emulated

    Followed the same procedures for setting up the "E-Stop" and "X++LIMIT" switches, except switches were in normally closed position. Here are their setups:
    E-STOP:
    • check-mark in the Enable column,
    • assigned pin 10,
    • X in Active Low
    • X in Emulated

    X++LIMIT:
    • check mark in the Enable column,
    • assigned pin 15,
    • X in Active Low
    • X in Emulated

    TESTING RESULTS
    Now with the above done, I can stop all motors when I hit the "E-Stop" switch or the "X++Limit" switch, either of which creating an open circuit. However, if I close the "X Home" switch, the X-axis motor keeps right on running and nothing changes with the X-axis digital readout (DRO) in Mach3. It is as if there is no Home Switch at all. I believe the wiring is correct since I used Mach3's "Automated Setup of Inputs" function, and Mach3 responded to the setup. I went back and read Mach3's manual, but must had missed something.

    So, what am I missing here, or doing wrong? Any hints?

    Thanks in advance for your input.
    Mike Falkner

  2. #2
    Join Date
    Jul 2012
    Posts
    62
    WAIT BEFORE YOU REPLY !!

    Before you wait your time replying, I just found a whole bunch of training videos for Mach3. Let me go study first and then I will get back with you if needed.
    Sorry,
    Mike Falkner

  3. #3
    Join Date
    Jul 2012
    Posts
    62
    SOLVED
    Solved my our educational problem for newbie by going to website ArtSoft USA - Video Tutorials and clicking on the "Homing, Limits, and Offset" training video.
    Mike Falkner

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