Stereo Lithography (SLA)

Stereolithography (SLA) is an additive manufacturing process using a focused laser beam over a vat of liquid photopolymer resin to quickly build parts layer by layer from a CAD file. As the laser draws a layer, the photopolymer is cured and solidified, adhering to the layer below. When a layer is completed, another layer of liquid photopolymer covers the surface of the previous layer to repeat the process.


SLA is one of the most accurate rapid prototyping methods. The speed and precision of SLA make it great method for concept models, master patterns, and fit & finish studies. The resulting parts can be easily finished using various techniques in order to give an accurate representation of a production unit’s appearance.