jkwilborn
(Jack Wilborn)
2
If it’s the jl1 or jl3, similar to this
I believe they have a proprietary software interface. I have a jl1 and it won’t work with Lightburn.
The manufacturer may have a ‘firmware’ change to allow it to talk grbl…
There are a couple threads, you can search for on the site… here is one of them…
Be careful, my jl1 is ‘bricked’, I think… 
Good luck
