[SgtMillhouse648]

We used one at a local university last year that used a real fine powder to print the part one fine layer at a time.

http://www.ems-usa.com/ZPrinter_310.html

Our school got a two week trial of a printer similar to the one you used. It worked excellent, and the school district just bought one for each of the high schools with project lead the way.
Great Job
Malhon