Process	SLA - Stereo lithography
	SLA is the most common RPT technique, and produces acrylic and epoxy parts. Almost unlimited geometry possibilities, fine geometric details and high accuracy (tolerances lie between 0.05% to 0.2%). SLA is less suited for heavy parts. The required geometry is produced in thin layers (0.1-0.25 mm). A CNC-controlled laser beam cures a pattern in the surface of a fluid photosensitive polymer. The hardened layer is then stepwise lowered allowing the fluid to cover the part. Typical applications are prototypes of injected moulded plastic parts and modelling of human bones and skulls. Maximum dimensions are about 500 * 500 * 500 mm.
Danish Name	Stereo litografi (lagvis laserhærdning af fotopolymer)
Category	Joining processes, rapid prototyping
Typical products	Skull, model Plate for ski rod Bottled ship, model Keybord Handle Cylinder head Briefcase handle Headset, wireless telecommunication
Competing processes	SGC - Solid ground curing
References	Danish Technological Institute, Centre for Product Development Damvig LEGO Futura
Price notes	Normal price for parts as small as a match-box is about 2000 DKK.
Keywords	RPT Rapid prototyping Additive manufacturing Free form
Photo	Thomas Nissen (Computer graphics)
Copyright	© 1996-2019 Torben Lenau This page is part of Design inSite Disclaimer