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Thread: Hitting limit where not limit exists

  1. #1
    Join Date
    Aug 2009
    Location
    Old Globe theatre, San Diego CA
    Posts
    13

    Default Hitting limit where not limit exists

    I have been having my router stop and tell me it has hit a limit switch where none exists. It is always in the 91. to 96 x-axis area. It does not always happen and I can't get it to repeat in the same area. I tell it to continue and it happly does.
    It is not loosing steps. Confussed why it does it?

  2. #2
    Join Date
    Dec 2007
    Posts
    2,392

    Default

    I had a problem that was like this it was the ground wire to the proximity switches in the control box I moved it to a different pin and have not had that problem. It could be a bad wire triggering this

  3. #3
    Join Date
    Apr 2007
    Location
    Marquette, MI
    Posts
    3,388

    Default

    Another cause of this is static discharge. many times a dust hose will flop over when the gantry moves to the +x end of the table. When it flops over it can make contact with the gantry, zzero plate or ground clip. Make sure all is gounded well.
    Gary Campbell
    GCnC Control
    GCnC411(at)gmail(dot)com
    Servo Controller Upgrades
    http://www.youtube.com/user/Islaww1


    "We can not solve our problems with the same level of thinking that created them"
    Albert Einstein


  4. #4
    Join Date
    Feb 2010
    Location
    Horizon Graphics CNC, Birch Run Michigan
    Posts
    109

    Default

    Yup, Gary right most likely static discharge
    Jim

  5. #5
    Join Date
    Aug 2009
    Location
    Old Globe theatre, San Diego CA
    Posts
    13

    Default Good thoughts

    I looked around and I did find 1 of my ground aligator clips unhooked. I will keep you informed. Thank you all

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