Stereo Lithography Apparatus (SLA)
Stereolithography is another common Rapid Prototyping technology and a physical and spatial 3D printing method.
Stereolithography is the primary technology for Rapid Prototyping and widely used. It allows the fast and cost-efficient production of prototypes to probe their appearance and level of detail.
With SLA, the part is gradually sunk in a photopolymer liquid bath. A laser beam traces the raw material, one layer at a time, to harden and shape the surface. Gradually, the 3D object emerges.
Depending on the material, the surface texture of the 3D object is determined by the finishing process.