Quote Originally Posted by chefffe View Post
I use simple Arduino with Ramps controlled by Marlin 2.0. As I mentioned, this is only a MPCNC.
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Ok, so can you have an option where, in your code, you enable a G Code and then enable an output signal? I used Marlin and RAMPS for my 3D printers, so it should be possible.

The same way a heatbed is activated (Relays on the board) you can do here. Enable a relay, switch an external relay that has logic. Ill draw a circuit diagram if it helps ... ?