Lightburn will not operate ORTUR 2

[LightBurn (Oz)]

@Laserbeam

What does $30=1000 control?

The exact thing you’re describing, more or less. It’s explained here:

Very slow laser?

On a CNC machine, S is the ‘spindle speed’, usually measured in RPM. When you send a GCode feed move the S parameter sets the analog (PWM) output that feeds into a device that controls the spindle speed, or in our case, laser power. The S parameter can be literally any number - Some GCode systems use 0 to 1 (with decimals, like 0.52), some use 0 to 100 (percent), some use actual RPM (500 to 5000), and GRBL often uses 0 to 255 because programmers are lazy and when you read an 8-bit image, the v…

(The $30 parameter controls the spindle-max value)