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General Mach Discussion / Re: BB card vs motion control card
« on: October 16, 2016, 08:26:59 AM »If i'm wrong someone will correct me but I'm fairly certain the the parallel port will not handle the encoder signal and pulse rates needed for servos very well. My encoders are 10,000 per rev and motors can do 3000 rpm so it needs a pretty fast connection.
This may be entering into the twilight zone but note to self…
“Tweakie be prepared to be hammered”


Mach3 is not a closed loop system so does not get to see the higher speed encoder signals that are required by the servo drives to verify that the step direction signals have been performed correctly.
Tweakie.