Lightburn relative coordinates
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Hello.
I've a laser on U axis (mapped on X with the laser tool selected) who works very well with Lightburn for cutting (gcode generate in absolute mode) but don't works in raster mode (relative mode). I've asked to Lightburn developper and he said it's normal his soft do that.
If I use relative mode in printer mode, no problem, but in laser mode M452, relative mode don't work (Error: G0/G1: target position outside machine limits) . An idea ? -
I've found. It was enough to write a G90 in the start code because my positioning of axis (park of X and centering of U) are in absolute coordinates.
Then Lighburn write G91 and no problem.
Is-it mean RRF turns relative mode when selecting laser mode ? -
hey guys sorry off topic but i cant get any help trying to set my laser up on duet 2 wifi with rrf 3.2 its the 12v ali express 40 watt laser can i use buck converter to step down and hook directl y to my fan pins?
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@bks31
Hello. I had tried to connect to fan pin but there's not enough power for a laser of 40w.
You need to wire with a circuit like Duet says here :
https://duet3d.dozuki.com/Wiki/Laser_PWM_control
I've added a 12v power supply for the laser and now it's ok. -
@noisettetbou you mad e that seperate circuit or just added psu can you take a oic of your setup