Hello wolrd!
I'm building my first CNC Router project, UCNC, a play of words for "You CNC".
The first step: the Electronics.
In the beginning I wanted to do a simple NC Drill (for building LED Matrices), but soon after I discovered EMC2 and changed my mind to do a full blown CNC Router.
The simplest way to use EMC2 is with a parallel port and stepper motors: EMC2 drives the steps/direction directly from the parport.
I've seen a lot of design for MACH3 and EMC2, including the excellent designs of PMinMO, but as an exercise I designed and build my own version of the controllers and interfaces.
This are the first boards and schematics I ever made on CAD/CAE Software (Eagle 5.10). They are designed with my needs in mind, and my own quirks too.