SLA (Stereolithography), also known as resin 3D printing, is a widely used 3D printing technology because the raw material is mainly photosensitive resin.

SLA can produce parts with high resolution, high precision and high finish. The SLA process uses light-sensitive thermoset polymers to produce custom parts and is characterized by rapid production. The dimensional accuracy is ±0.5%, and the minimum accuracy can reach ±0.15mm.