Stereo lithography Advantages Areas of Use A focussed laser beam directed onto an epoxy resin forms layers and forms the required geometry 3D-CAD data is converted into STL format Stereo lithography allows high precision on fine structures with very thin internal and external walls Rapid construction Hollow complex components can be produced Prototypes, hallow components, illustration models, concept models The current trend shows that STL is moving in the "rapid manufacturing" direction