Eleksmill micro engraving machine calbration

  • I just finished assembly of my micro mill and have been playing a bit, but it seems like the calibration isn't correct (or I'm misunderstanding something)
    When I issue a G0 X100 command(after being at 0), the x axis moves 2.0cm. Same distance when moving the y axis.
    my understanding is that the G0 Y100 should move to 100 (10cm travel from 0)
    The results of a $$ command are:
    Grbl 0.9j ['$' for help]

    $0=10 (step pulse, usec)
    $1=25 (step idle delay, msec)
    $2=0 (step port invert mask:00000000)
    $3=0 (dir port invert mask:00000000)
    $4=0 (step enable invert, bool)
    $5=0 (limit pins invert, bool)
    $6=0 (probe pin invert, bool)
    $10=3 (status report mask:00000011)
    $11=0.010 (junction deviation, mm)
    $12=0.002 (arc tolerance, mm)
    $13=0 (report inches, bool)
    $20=0 (soft limits, bool)
    $21=0 (hard limits, bool)
    $22=0 (homing cycle, bool)
    $23=0 (homing dir invert mask:00000000)
    $24=25.000 (homing feed, mm/min)
    $25=500.000 (homing seek, mm/min)
    $26=250 (homing debounce, msec)
    $27=1.000 (homing pull-off, mm)
    $100=80.000 (x, step/mm)
    $101=80.000 (y, step/mm)
    $102=80.000 (z, step/mm)
    $110=2000.000 (x max rate, mm/min)
    $111=2000.000 (y max rate, mm/min)
    $112=2000.000 (z max rate, mm/min)
    $120=500.000 (x accel, mm/sec^2)
    $121=500.000 (y accel, mm/sec^2)
    $122=500.000 (z accel, mm/sec^2)
    $130=200.000 (x max travel, mm)
    $131=200.000 (y max travel, mm)
    $132=200.000 (z max travel, mm)

    So, I'm wondering if I missed a jumper on the control board, or if my parameters are wrong, or i'm doing something else wrong.

    Thanks in advance
    Scott V

  • Developer of T2Laser Software

    @Scott-Vanderweyst You need to set the correct steps per mm, if you are using the mana.hex you can issue the command E4.

    The correct steps are 400.

  • Ok, I wasn't sure if I was missing a step other than setting those.
    I've just been using the default hex that came with eleksCAM.
    There is something strange going on though; regularly when idle, I hear the stepper motors engage (not moving anywhere) and if I have the laser plugged in, it fires and burns a small mark in whatever is on the engraving/cutting table.
    This happens whether I'm in T2, EleksCAM, or in nothing at all.
    Any suggestions on what might be going on?

    Thanks again

  • Active Member

    it does that when the nano connects. if you have the power button turned off until after the pc/nano handshake you can keep it from happening.

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