I went the "CNC from scratch" route about six years ago. Yes, with
simple tools like a drill press, a sander and some machinery savy, one
can make something decent and useable. It was a learning experience and
I fell in love with "black Delrin". Here's a small gallery devoted to
this work that may be useful;
http://www.pbase.com/eldata/cnc_from_scratch&page=allWould I take this approach again? No! My advice to anyone interested in
CNC would be to get as much already constructed off-the-shelf unless
the learning experience is of paramount importance.