So I’m coming back to lasering after a while and Lightburn after a longer while. I got a 40W laser between now and the last time I used it. I installed the 40W laser profile from the wiki which solved my air-assist issues. And I set “Emit S value with every G1 command” to resolve my issues with it not cutting past the first path.
I thought I was in the clear (everything was cutting nicely) until it got to the only engraving part of the project. I was trying to engrave a QR code. It ended up wildly off from what it looked like in software.
Pictures:
What it looks like in Lightburn:
What it looks like in real life:
As you can see the QR code gets shifted left by a significant amount to where it overlaps the cut areas.
I even opened the gcode in Luban and it looks normal here as well:
Here is the gcode:
bintray_1.nc (252.3 KB)
Any ideas on why this happened?
Crossposting this to the Lightburn forums. As added info my set up uses the Artisan Lightburn profile here: https://wiki.snapmaker.com/en/general/manual/use_ray_with_lightburn_guide
Are you using the crosshairs and have them properly setup in Lightburn? I had this issue when I had the crosshair offset set on my 2.0 on my 40W (on the touchscreen, not lightburn) it would run the first object fine, then it would shift by that offset. I don’t use the cross, so I zeroed it out on my machine.
Try matching your laser offset on the machine and Lightburn to the same thing.
That was it. I just turned it off entirely and that fixed the problem. I.e. just change “Enable Pointer Offset” to the OFF mode in the device settings in Lightburn.
There’s some weird stuff going on now with the laser cutting in a completely different area from the boundary run though. It might not be related though. I’ll play around with some settings.
Thanks!
Please write the solution when you solve the boundary problem. I have the same issue.
