Lego NXT CNC Machine to Help Build Circuits

Tonight, I began my next Lego project. This one, I have to say, is probably the hardest. This is because it's a 3 axis CNC machine. The sole purpose of this project is to help me make more circuit boards for projects. I also think it's pretty neat to have a Lego CNC machine laying around. Anyways, after about two hours of hardcore tinkering and building, here's the progress. Feel free to comment or to give any recommendations!