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1000x850 Sphinx - Stepper sound

Discussion in 'CNC Mills/Routers' started by Adil Gandara, Oct 23, 2018.

  1. Adil Gandara

    Adil Gandara Well-Known
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    hello open builds forum


    I recently built a CNC based off of the sphinx design and used NEMA 23 Hi torque steppers with Xpro v3 controller, I’m having an issue with the steppers making a load humming sound while at idle is these normal to experience?
     

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  2. jeffmorris

    jeffmorris Veteran
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    You'll need stepper motor drivers shown at DQ542MA Stepper Motor Driver because the max amount of current draw is 2.5A on the Xpro controller.
     
  3. CNCMD

    CNCMD Veteran
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    Also check your grbl settings, I'm guessing $1=255 - if that is so then the motors are always locked. If you wish to unlock them, make this number smaller, like 25.

    And yes, that controller is not going to be able to fully power those motors.
     
  4. Adil Gandara

    Adil Gandara Well-Known
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    Thank you for the reply
    Are these controllers meant to be wired with the Xpro ?
    if so how would One do so, is there a diagram that can indicate the correct way of wiring them up?
    Would I need additional parts other than comptrollers such as power supplie?
     
  5. CNCMD

    CNCMD Veteran
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    I'm on the road but in short, the xpro is the controller. It controls the stepper motor direction, and provides power. The max power per stepper is 2.5amps max. The high torque stepper needs more than that, but should work.
     
  6. Adil Gandara

    Adil Gandara Well-Known
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    On my DQ542MA with a nema 23 hi torque stepper motor what should my microstep dip switch settings be
     
  7. Adil Gandara

    Adil Gandara Well-Known
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    Here’s a picture of the quickset up I made
     

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  8. Giarc

    Giarc Master
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    If you are using the settings for the sphinx build you want 1/8 microstepping which I believe means you set your dip switches to 1600 pulse/rev settings.
     
  9. Adil Gandara

    Adil Gandara Well-Known
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    Thank you for the reply I have my dip setting to 1600 but When jogging the machine 100 mm it only travels about 20mm This is the same for every axis Is this a wiring issue or a setting issue
     
  10. Giarc

    Giarc Master
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    You asked this in another thread and I posted this answer there:
    help with sphinx 1000x850
     

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