I am about to start a course in assembling a 3dPrinter, the end result is a prusa i3.
I found that the nozzle is this one: Fusor FullMetal CatNozzle
and that it can print many materials:
http://screencast.com/t/Dv0F2lwMZX
The question is, what materials are not in that list, what cant I print?