I recently got a Monport K40 Pro. I finally got it to connect well with light burn. However, when i run a project the laser will not burn. The “laser signal” screen flickers between on and off. The laser will burn when i run the test button.
Change your USB cable or ethernet cable for a new cable. Plug into a different USB port on your computer.
Did you go through the Lightburn grbl setup?
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