is it really a chromebook? I didn’t see any statement that it was.
Here’s my $0.02
- disconnect the USB cable from the computer
- disconnect power cable from the laser
- connect power to the laser and power the laser on. Hopefully it has auto home feature and that works properly. This kinda says the firmware is working and homing switches are A-OK
- connect the USB cable to the PC and look at your console output to see what the device is. I will open a terminal window and type “dmesg” and see what the final output lines are. It should say something like “ttyACM0”
- make the device RWX to everyone just so we know it all works. Do this by typing “sudo chmod 777 /dev/ttyACM0”
- Start LightBurn and make sure you device setup is to access device ttyACM0 and when you select that you should see connection information in the Console tab in Lightburn.
If this works then you meerly have a permissions problem and something went wrong when you added yourself/userid to the dialout group. Or you were not connecting to the ttyACM0 but where attempting to connect to the virtual ttySx devices instead.