Sounds like a good idea to me
So, I decided that I should build a CNC milling machine to create PCBs. I have been thinking about it for quite a while now, and I've been looking at other people's designs online. I'm planning to build it with two axes to move the work piece in the X and Y directions, and the third axis moving the milling head up and down. I'm not sure what I will build this system out of though.
I'm planning to use stepper motors to move the three axes. I think I'll make the leadscrews out of All-Thread untill I can come up with some real ones. As for the X and Y sliding mechanisms, I'm not sure yet what I'm gonna do.