Stereolithography Resin liquid photopolymers Different ones with specific properties optical transparency UV and humidity resistant higher strength, flexibility Used for rapid prototyping
Stereolithography 3-D CAD model Software chops model into thin layers UV laser paints one layer Platform drops down a fraction of a millimeter Steps 3 and 4 repeated until done Placed in an ultraviolet oven that thoroughly cures the plastic.
References http://www.stereolithography.com/slainfo.php http://computer.howstuffworks.com/stereolith.htm http://users.bergen.org/jdefalco/SLA5.html http://home.att.net/~castleisland/sla_int.htm http://www.engineeringtalk.com/news/dsm/dsm100.html