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Parallel Port 3 Axis CNC Driver, Opto-Isolated, Unipolar Steppers

Step 11Software & BIOS Setup

Software & BIOS Setup

This driver has been tested and works great with KCam. But most CNC programs (Mach3) work in a similar way and should also work fine.

Parallel Port is set up as follows, pins referenced are on the DB-25 port.

X Step - Pin 4
X Direction - Pin 5
Y Step - Pin 6
Y Direction - Pin 7
Z Step - Pin 2
Z Direction - Pin 3


Ensure in the BIOS that the parallel port is enabled, address set ( 0x378 is default ), and mode set to EPP or EPP/ECP


A short Tutorial on Setting the Home Point and Eagle CAM Processor Info and more KCAM setup info.

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Author:ChromationSystems(www.chromationsystems.com)
Designing electronic creations from microcontrollers, LEDs and anything else I can pull out of a dumpster and make use of. Check my Profile