I have posted on my site a program to run a 2 1/2 axis milling machine or plotter. And a HPGL to G code translator (these cost $300 if you have to buy them). Its run by a simple stepper motor controller (L/R). Four can be run off one parallel port. More stuff is on the way. Simon - http://www.tefbbs.com/spacetime/index.htm
