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x axis only goes one direction

Discussion in 'OpenBuilds Forum Help' started by freon12, Nov 10, 2018.

  1. freon12

    freon12 New
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    hi, i'm looking for help on sphinx build, i just hooked up new x- pro board w/ external drivers, and have x axis going one direction the only axis working properly is z. tested all axis using z control wires and all stepper drivers worked ok y axis also does not work at all, but worked with z control wiring. i would like to get x axis working first then figure out y, as i still did not figure out solder jumper for y and a to work together as they seam to have continuty between them now thank you i am using ox grbl settings and grbl panel. Have checked all wires from board all seem ok all lights on board seem to be working ok and grbl panel shows axis are working when there not moving? hoping to get machine running thank you freon12
     
  2. Gary Caruso

    Gary Caruso OpenBuilds Team
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    Sounds like a wiring issue.
    Curious why using an xPro (with external drivers) when a cheap Arduino UNO and screw shield are more convenient and 1/10 the cost?
    Been seeing this often lately.
    Cheers
    Gary
     
  3. freon12

    freon12 New
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    hi gary i am new to cnc and do not know all ins and outs of products so i started with open builds and what they have to offer. This is a learning curve for me, i will look into your surggestion when i finnish this build thank you i will check all wiring again
     
  4. David the swarfer

    David the swarfer OpenBuilds Team
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    so if it only goes one direction then the obvious thing to look at is the direction pin connection to the driver.
     
    Gary Caruso likes this.
  5. freon12

    freon12 New
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    HI, DAV, i checked connections dir+ and pul+ from steppers to solder pin on board all are right position and i have continuity on connections at board to steppers. could you tell me what voltage would be at stepper when signal is sent if you have any suggestions i would nearly appreciate it i am using 24v power supply and it is set at 24v thank you david
     
  6. David the swarfer

    David the swarfer OpenBuilds Team
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    the direction pin will be 0v for one direction and 5v for the other direction (or values very close to those).

    the entire Arduino is 5v TTL logic. Google '5v TTL logic' if you dont know what it is (-:
     

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