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Issue with CNC (XPro)

Discussion in 'General Electronics' started by TMeh, Nov 11, 2018.

  1. TMeh

    TMeh New

    Mar 5, 2017
    Likes Received:
    Hi guys/gals,

    I've got an issue with an OX CNC. Used to work fine, then it didn't!

    Y Axis (Long Axis with Slave Motor) stops working and X axis starts to lose the plot. (Tried 3 times (as seen on the tooling block).

    UGS settings attached. I've got a lot of red lights on the steppers when the machine is turned on. I've put a video clip of when it's operating (before it stopped working).

    I've tweaked the X-Axis so it's on a lead screw. (done ages ago and been working since).

    No obvious error messages in UGS, just stops receiving confirmation of command completed.

    Any tips would be gratefully received. Thanks.


    $0=10 (step pulse, usec)
    $1=255 (step idle delay, msec)
    $2=1 (step port invert mask:00000001)
    $3=6 (dir port invert mask:00000110)
    $4=1 (step enable invert, bool)
    $5=0 (limit pins invert, bool)
    $6=1 (probe pin invert, bool)
    $10=3 (status report mask:00000011)
    $11=0.020 (junction deviation, mm)
    $12=0.002 (arc tolerance, mm)
    $13=0 (report inches, bool)
    $20=0 (soft limits, bool)
    $21=1 (hard limits, bool)
    $22=1 (homing cycle, bool)
    $23=1 (homing dir invert mask:00000001)
    $24=25.000 (homing feed, mm/min)
    $25=500.000 (homing seek, mm/min)
    $26=250 (homing debounce, msec)
    $27=5.000 (homing pull-off, mm)
    $100=200.000 (x, step/mm)
    $101=26.667 (y, step/mm)
    $102=200.000 (z, step/mm)
    $110=5000.000 (x max rate, mm/min)
    $111=5000.000 (y max rate, mm/min)
    $112=5000.000 (z max rate, mm/min)
    $120=50.000 (x accel, mm/sec^2)
    $121=50.000 (y accel, mm/sec^2)
    $122=50.000 (z accel, mm/sec^2)
    $130=550.000 (x max travel, mm)
    $131=1275.000 (y max travel, mm)
    $132=150.000 (z max travel, mm)


    Attached Files:

  2. Giarc

    Giarc OpenBuilds Team
    Staff Member Moderator Builder Resident Builder

    Jan 24, 2015
    Likes Received:
    Is there any chance a wire may have come loose, or broke? It seems weird that it worked but now doesn't, unless another setting got changed. I thought someone recently had a similar problem then found they had a loose wire. Also, if the wheels somehow tightened up that can cause step loss.

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