I recently started playing with lightburn and want to do photos. Using M3/M5 Sxxx for laser control works fine for following lines but not for photos. I think that I want to use M62 along with an Sxxx for laser on and power setting. The laser power is controlled by PWMing the on/off pin.
Lightburn likes to use M106 and an S number for laser control. I think it is coming from M106 being used for fan on a Marlin 3d printer board. Find/Replace M03 in place of the M106 sort of works but It does a laser on, move, laser off so there is a lot of overburn. Sample gcode from Lightburn: ; Image @ 2500 mm/min, 20% power M8 M106 S0 G0X1.8487 Y0.8204 F0 ; Layer C01 M106 S0 G1X0.041 F98.425 M106 S20 G1X0.29 M106 S0 G1X0.041 M106 S0 >From the docs it looks like M62 would do the job if I can also use the Sxxx to set the pwm. Questions - Is it possible to set up the digital pin associated with the M62 to be a PWM output? - Is there an example of how to do this? Dave _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
