Quote Originally Posted by Doddy View Post
Okay, that surprised me.

Can you measure the pin 17 voltage on the parallel port, with respect to gnd (any pin 18 through 25). Again, this is computer-side only.

From the RUN page, slew the X axis left and right (verify with DRO). In one direction you'll get 5V on pin 17, in the other, 0V.
Nothing


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