I am using 30x30 Long mill with LB and a the Sienci Labs 7W Laser Beam. I set up the laser with job origin in canter and current position. Everything is fine till the end, but the beam stays on and will not turn off. Do I have a wrong setting somewhere? Thanks
This is not a Lightburn or GRBL setting. At the end of the Gcode, Lightburn will output an M5 code to turn off the laser. To confirm this happens, create a smallbox or circle. Then use the Save Gcode to put it in a text file. Examine that text file. It should look something like this…
G1 X-2.185Y-1.318
G1 Y-3.211
G1 X-1.611
G1 Y-1.709
M9
G1 S0
M5
; return to starting pos
G0 X-33.5Y-11.547
M2
If it does, you have a laser controller module or a controller software issue.
Try changing $31=0 to $31=1
Although it has to do with power level, you need to make sure $30 and S-value match. And I think they should both be 1000
This is a brand-new controller from Sienci Labs I just got the other day.
I will go over all the settings and connections again tomorrow.
Me again. I don’t quite understand " This is not a Lightburn or GRBL setting". I took the picture from LB! 
Thanks, I will try it out…
**Thanks, you mean change $30 = 255 to $30 =1000 ?
sorry looked at my machine this morning and you are right $30=1000
Still working on it, could not do too much today.! Will report back when I have resolved the problem…
I have put this laser on a shelve…I will tackle this problem after Christmas. Thank you all for your input. Merry Christmas and a happy New Year.
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