Stereolithography (SLA) is a 3D printing technology that uses a laser to cure a liquid photopolymer resin, layer by layer, to create a 3D object. The process begins with a 3D model designed in CAD software, which is then sliced into layers by the printer's software.
The liquid resin is stored in a vat, and a build platform is submerged into it. A laser then scans the surface of the resin, selectively curing it according to the design's specifications. The cured layer adheres to the platform, and the process repeats, building the object layer by layer until it is complete.
SLA is known for its high accuracy and resolution, making it a popular choice for printing detailed and intricate models, such as jewelry or dental molds. It can also produce smooth surface finishes and is capable of creating parts with complex geometries.
However, SLA printing can be slower than other 3D printing technologies, and the liquid resin can be expensive and require special handling to prevent contamination or degradation.