With LightBurn I do not have the full power of the laser

Are there people here who operate the Ender-3 S1Pro with Laser Module?

In my opinion the Creality software very limited, so I tryed the software LightBurn. However, I have noticed that the laser no longer lasers at 100% power with LightBurn. But I have set the power to 100%.
I also noticed that the gcode is different (value LightBurn “255” instead of CrealityPrint “98”).

Does anyone also use LightBurn and has a solution or even a profile for me?

The printer is not connected. I laser via the gcode via SD card.


:::::Example LightBurn:
; LightBurn 1.2.03
; Marlin device profile, absolute coords
; Bounds: X64.66 Y80.31 to X154.69 Y131.71
; Image @ 1000 mm/min, 100% power
G0 X66.858 Y80.313 F0
; Layer C00 Pass 1 of 2
G1 X0.416 F1000
M03 S255 <<<<- S255 means 100% right?
G1 X0.2


:::::Example CrealityPrint:
;Header Start
;estimated_time(s): 1433.863
;MAXX: 164.56
;MAXY: 132.22
;MINX: 55.33
;MINY: 80.56
;Header End

G92 X0 Y0 Z0
G0 F3000
G1 F1500
M3 I
G1X57.444S98 <<<<- S98 means 100%

Did you setup lightburn/machine to the same settings?

Double check the installation instructions for Lightburn grbl setup.

This is usually due to the incorrect $30, $31 and $32 and the associated ‘S-value max’ in the device settings…

Good luck


Got the solution. Have now increased the S-value max from 255 to 1000 and I now have 100% power.


If that’s the solution, mark the thread ‘solved’…

Take care … have fun


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