Swingman wrote:
http://www.engadget.com/2006/06/29/h...achine-part-1/
http://www.engadget.com/2006/07/04/h...achine-part-2/
Eat your heart out, Morris! 
I built one in 1995 for my college senior project. Used an old IBM XT
system board that I bought for $1, stepper motors from dot matrix printers,
threaded rod like that one and some drawer rail bearings I found surplus.
Had to put my code in via a 5&1/4" floppy but it worked.