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xpro V3 Ox built CNC: A-Axis does not work

Discussion in 'Controller Boards' started by Bernd, Dec 14, 2017.

  1. Bernd

    Bernd New

    Mar 3, 2015
    Likes Received:
    xpro V3 Ox built CNC: A-Axis won’t work.


    i have a question regarding my CNC xpro V3 I am using with my OX-like built CNC router. It was running fine, until I have tried to change the stepper settings to a finer setting by moving the jumpers and Pot adjustment, because the Z-axis acted a bit sluggish.

    After the adjustment the A-axis, which is the designated slave axis to the Y-axis does not move at all anymore.

    The things I have tried:

    Changing GRBL settings,

    uploaded my initial GRBL settings again,

    Used different G-code senders,

    tried switching the stepper motors to check if it’s a motor problem.

    None of the above worked.

    Now I have measured the resistance between to connector pins at the board at the a-axis driver.

    There is no resistance between the A1, A2, B2, B1 connectors when the power is off, means , it seems like they have connection throughout.

    I guess the board is malfunctioning ?

    Any help appreciated.


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