Laser never shuts off





This is my laser and my firmware settings why does my laser not shut off?

$30, $31 and $32 are right.
More about that here if you like:

I’d like to know which version of GRBL is mentioned in the Console window when LightBurn first connects. You can copy info from the Console window into a Reply here.

Some early versions of GRBL used a different pin choice. The other possibility is the PWM laser control signal is inverted.

Did you flash or configure your firmware?
Is this a packaged build?

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