Quote Originally Posted by regpye View Post
You need to view the table that comes with GRBL to work out that question about $3=5 It is actually settings for reversing the XYZ motor directions without having to physically doing it with the wiring.
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anything equal to =0 means disabled, =1 is enabled , other numbers are from the table above and are used in several of the settings.
Ah but the table did not show up in my crystal ball