My Grbl Machine Setting Changed

Hi Team LightBurn,

My problem is i was using my Laser 3018 CNC software with Lightburn,
I was trying to check some other software like elskmaker and some other software get the good result for a picture, i think due to this chaging the software my machine board seting has been change,

Can u help me to reset my machine and i need my old grbl seeting i want to return back.

Thank you

Look at the first paragraph here:

It’s likely one of those ($32, or $10)

… but that’s a guess. You haven’t said anything about what it’s doing or is not doing, and “some settings have changed” is not enough information to really help you.

Hi dear,

Thanks for ur quick response,
Actually i installed eleksmaker software and after that when i start LiteBurn Application its not configure to previous setting.

Means before its selected GRBL machine connected easily,
but now its select GRBL-M3.
and not showing the console $30, $31 and $32 for laser On/Off setting.

What should i do?

I think i removed the Firmware.
I have copy the console, kindly check it,


Port opened, waiting for response.
Grbl 0.9i [’$’ for help]
Your Grbl may not support Variable Power mode (M4)
If your laser does not turn off between cuts,
switch to the GRBL-M3 device

$0=10 (step pulse, usec)
$1=25 (step idle delay, msec)
$2=0 (step port invert mask:00000000)
$3=2 (dir port invert mask:00000010)
$4=0 (step enable invert, bool)
$5=0 (limit pins invert, bool)
$6=0 (probe pin invert, bool)
$10=1 (status report mask:00000001)
$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=800.000 (x, step/mm)
$101=800.000 (y, step/mm)
$102=320.000 (z, step/mm)
$110=1000.000 (x max rate, mm/min)
$111=1000.000 (y max rate, mm/min)
$112=600.000 (z max rate, mm/min)
$120=30.000 (x accel, mm/sec^2)
$121=30.000 (y accel, mm/sec^2)
$122=30.000 (z accel, mm/sec^2)
$130=250.000 (x max travel, mm)
$131=250.000 (y max travel, mm)
$132=200.000 (z max travel, mm)


There is no Laser option $32=1 On/Off,

Kindly update me on how i can switch the previous setting.
I need my old setting where i use the laser on and off automatically.
Thanks and i really appreciate if it will be solved.

Thank you,


You are using GRBL 0.9 firmware - it does not have the laser mode setting. Since you are using the GRBL-M3 device in LightBurn, it should work fine anyway.

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