stereolitografia

Stereolitografia, often abbreviated as SLA, is a 3D printing technology that uses a photopolymer resin and ultraviolet light to create three-dimensional objects layer by layer. It is one of the earliest forms of additive manufacturing. The process begins with a vat of liquid photopolymer resin. A build platform is submerged into the resin, and a UV laser or projector then selectively cures the resin in the desired pattern for the first layer. The platform then moves slightly, and the next layer is cured on top of the previous one. This process is repeated until the entire object is built. Once printing is complete, the object is removed from the vat and typically undergoes a post-curing process under UV light to further solidify the material and achieve its final mechanical properties. SLA is known for its ability to produce highly detailed and smooth surfaces, making it suitable for applications requiring precise geometries and aesthetic finishes, such as dental models, jewelry prototypes, and intricate visual aids. The materials used in SLA can vary, offering different properties like flexibility, toughness, or biocompatibility, depending on the specific resin formulation.