I am using LW and for all its faults think its the best bit of laser software available. I do have an issue though.
When I run the check size, LW doesn’t turn the laser on. I have it set correctly in the settings and Laser Test works just fine so I don’t know what I am missing.
Linux version laserweb-builder-v4.0.996-130-x86_64.AppImage on Arch
GRBL 1.1f
Diode laser
If LaserWeb has a feature which turns on the Diode laser at low power for visual framing then ya, that’s more like what should be expected. But, are you sure LaserWeb has that feature? Many CO2 laser machines have a red dot laser specifically for alignment so you would not want to turn on any power to the CO2 laser during framing. LightBurn has a special setting specifically for diode laser framing because you do not want to do this with CO2 lasers.
If you look at the above code, it shows a power setting of S10. However it seems like it is not in the right place to trigger the laser or at least a diode laser anyway.
I see that now and IIRC that should turn the laser on after the M3 command.
M3 and M4 turn the spindle(PWM/Laser) on and M5 turns it off. I don’t see M3 nor M5 in that GCode.
The laser is not activated automatically because this would be a security issue with CO2 lasers.
The solution is to configure the “TOOL TEST POWER” in the gcode settings and use the “Laser Test” button to switch the laser on before “Check size” and off afterwards.