Stereolithography (SLA) is regarded as the original 3D printing process still widely used today for creating

concept models, master patterns for urethane casting, one-off presentation models, and complex parts with intricate geometries.

SLA uses an ultraviolet laser that draws on the surface of liquid thermoset resin to create thousands of thin layers until final parts are formed. A wide selection of materials, extremely high feature resolutions, and

quality surface finishes are possible with SLA.