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Erratic movement of X-axis

Discussion in 'CNC Mills/Routers' started by Duncan Meyer, Dec 12, 2020.

  1. Duncan Meyer

    Builder

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    Hi,
    I have just recabled my Workbee because I stupidly cut my cables too short and couldn't move the Blackbox controller.

    Both the Y and Z axes move predictably, but the X axis seems to have a mind of its own. Successive + 10mm jogs from the Control software sometimes moves the gantry in the + direction, and sometimes in the - direction! And this may not be related, but the X axis stepper makes a terribly loud noise. I've loosened the backlash screws which helped. But its still uncomfortably loud. But the main problem is the random left/right motion...

    I've checked the wiring (the culprit of most such errors) but everything "seems" to be right. Any ideas?

    Duncan
     
  2. Giarc

    Giarc OpenBuilds Team
    Staff Member Moderator Builder Resident Builder

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    It still sounds like a wiring issue, especially when it was just modified. Is there any chance that there is a bad connection in one of the screw terminals? Maybe the wire insulation is blocking a good connection?
     
  3. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
    Staff Member Moderator Builder Resident Builder

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  4. Duncan Meyer

    Builder

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    I had crimped ferules on the ends of all the wires, and found that quite a few of them were making poor contact. Lesson: ferules do not work on very small guage wire. So I returned to crimping naked wire, and problem solved.

    Thank you,
    Duncan
     
    Peter Van Der Walt likes this.

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