I'm just now to the point of connecting my touch screen control computer to my 7i92m and 7i77 (analog servos on my machine). I chose that combination based on a lot of research and by following the flow chart here. Mesa Electronics US

I also went with Ethernet as a means to connect my computer to the 7i92m. I plan to use gmocopy user interface in linux cnc. I have a few pictures up on my Instagram @jodyolivent

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