Hi all, getting used to lightburn and actualy getting to like it.
problem im having is my job just stops. consol says unknown M9.
seems to be happening all the time now, but i did get a couple of burns to go right through.
please help if you can.
What kind of board & firmware are you using? M9 is a standard Grbl command for turning off the “coolant” output, which is used for air assist.
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