Uploaded March 2018 | Updated September 2026, 4 minutes ago
In this video I try to cut DXF toolpaths using the PLH3D-6W-XF from Opt Laser, using Inkscape and a plugin tool by another company called jTech Photonics.
This is the link to the driver: jtechphotonics.com/?page_id=1980
This is the header and footer you should add if you are planning to use the 6W Laser with GRBL v1.1.
;(Header)
$32=1 ; ENABLE GRBL LASER MODE ( github.com/gnea/grbl/wiki/Grbl-v1.1-Laser-Mode )
M4 S1 ; SET LASER MODE
;(Header end)
;(Footer)
M5; Disable laser
$32=0
;(Footer end)
I also noticed the PWM range jumping from off to nearly 50% before allowing for a variable range up to 5v. When I built the CNC controller I added a toggle button to allow me to switch between the PWM set in Gcode and a potentiometer. Also as my spindle is air-cooled the 2.2v initial variable speed, meant I was actually using the spindle at the correct minimum RPM so if I had noticed, which I can’t remember, it wasn’t a problem. But now that I am installing a laser I have the problem of not reaching the full rage of the PWM. This may be normal behaviour but I can’t get a clear answer and I really need to check the GRBL firmware on a plan Arduino to see if it’s my controller, something to do with how installed it or set up the firmware.
Subscribe: goo.gl/FmlHU7
Patreon: patreon.com/EducatingSavvas
Photos: instagram.com/savvas_papasavva
Main Channel: youtube.com/SavvasPapasavva
Website: miscpro.com
In this video I try to cut DXF toolpaths using the PLH3D-6W-XF from Opt Laser, using Inkscape and a plugin tool by another company called jTech Photonics.
This is the link to the driver: jtechphotonics.com/?page_id=1980
This is the header and footer you should add if you are planning to use the 6W Laser with GRBL v1.1.
;(Header)
$32=1 ; ENABLE GRBL LASER MODE ( github.com/gnea/grbl/wiki/Grbl-v1.1-Laser-Mode )
M4 S1 ; SET LASER MODE
;(Header end)
;(Footer)
M5; Disable laser
$32=0
;(Footer end)
I also noticed the PWM range jumping from off to nearly 50% before allowing for a variable range up to 5v. When I built the CNC controller I added a toggle button to allow me to switch between the PWM set in Gcode and a potentiometer. Also as my spindle is air-cooled the 2.2v initial variable speed, meant I was actually using the spindle at the correct minimum RPM so if I had noticed, which I can’t remember, it wasn’t a problem. But now that I am installing a laser I have the problem of not reaching the full rage of the PWM. This may be normal behaviour but I can’t get a clear answer and I really need to check the GRBL firmware on a plan Arduino to see if it’s my controller, something to do with how installed it or set up the firmware.
Subscribe: goo.gl/FmlHU7
Patreon: patreon.com/EducatingSavvas
Photos: instagram.com/savvas_papasavva
Main Channel: youtube.com/SavvasPapasavva
Website: miscpro.com
