Does anyone know what kind of material ( gook ) is used in these 3D machines?
Is it possible to use a transparent acrylic ( or some other transparent fluid/plastic ) for making aquariums for example?
What material would you like?
http://objet.com/3d-printing-materials
Clear, opaque, ridged, rubbery, biocompatible, high temperature.
http://www.shapeways.com/materials/
Aluminum filled nylon, plastics, sterling silver, Stainless steel, Gypsum (Plaster of Paris), Ceramics (Food grade, no less!), glass.
http://production3dprinters.com/slm/spro125-direct-metal-slm-production-printer
Choose from a large range of metal alloys, including aluminum and titanium.
You can even make stuff out of corn starch or sugar...