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CNC Machinery controller

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Hi everyone,
I got an older control box from my shop at school for a Techno Isel CNC router. We upgraded from the stpper motors that this box controlled to an awesome new set of servo motors. The router work supurbly, and is really cool to play with, but I am also intersted in playing with the old control box. It too is a Techno Isel, and provides voltage pulses to controll the old stepper motors. It interfaces to the computer via serial, and I have the program. It is a three motor unit. I am trying to come up with something cool I can do with it, as I am thinking it could auctuate relays or something like that. Any creative ideas out there?...Thanks-Levi
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