3-dimensional printer project, pls. Help!

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oath111

Joined Dec 17, 2013
2
Good day! A problem shared is a problem solved. Fellows, please I need an urgent assistance in overcoming a serious challenge I'm facing interfacing my Microcontroller with a stepper motor controller PC through the parallel port.
I am trying to fabricate locally a 3-Dimensional printer as my final year project, I've successfully constructed the machine but the technical part seems to be very tough.
I am using a U-2 stepper motor controller/Decoder to control the stepper motors, but i don't know the exact pins of the parallel port cable the 'A-STEP, A-DIRECTION, B-STEP and B-DIRECTION' pins of the IC (as shown in the attachment) are to be connected to.
This is urgent pls. thanks
 

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