How to setup using User Origin in Lightburn, check your air assist nozzle, and make sure you are setup for GRBL and not GRBL-M3.
Although I use Absolute Coordinates" for 99% of my projects, sometimes a project will not allow it as I show here. Since this particular laser does not support "Current Position", I use the User Origin option and here is how to set it up. Just don't forget tot set Finish position!

Where to get one of these lasers: https://s.zbanx.com/r/CxVWkVFhcFWw

Accessories: https://s.zbanx.com/r/diVNi3556JSa

The above links are affiliate links and I do receive a small commission if you purchase. However, this does not increase your cost.