LightBurn can’t find my Laser Atomstack 5a

[Rick (Technical Evangelist)]

From another system but most likely this same issue:

3018 Pro not detected

LightBurn works fine. The drivers for your laser are the issue. MacOS ships with a driver that conflicts with the drivers used by FTDI devices. It’s also possible that your board uses a CH340, which you might not have a driver installed for. I do not know which chip your 3018 uses for communication. This is to fix the FTDI issue: Ch340 MacOS: https://learn.sparkfun.com/tutorials/how-to-install-ch340-drivers/all#mac-osx

Also, these are worth review: Common GRBL/GCode Setups - LightBurn Software Documentation and Connection Issues - LightBurn Software Documentation