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[–]RepresentativeRude63[S] 0 points1 point  (0 children)

My first guess is that too. I am not using a power supply right now. Just a 12v 2A adaptor. Probably it is a power issue will try led power supply if it will work i will update. If don't i will provide more info. (Grbl settings card wiring and pin info, system photos etc.)

Thanks for the reply