How does Sla 3d printing work？

Описание: Stereolithography (SLA) 3D printing is an additive manufacturing technology that uses a UV laser to solidify a liquid resin into a solid object, layer by layer.

The process begins by creating a 3D model of the object using computer-aided design (CAD) software. The 3D model is then sliced into layers, and the data is sent to the SLA 3D printer.

Inside the SLA 3D printer, a vat of liquid photopolymer resin is exposed to a UV laser beam. The laser beam is directed by a set of mirrors to trace the first layer of the 3D model on the surface of the liquid resin. Wherever the laser hits the liquid resin, it causes a chemical reaction that solidifies the resin, forming a thin layer of the object.

After the first layer is complete, the build platform moves down slightly, and the resin vat is lowered so that the laser can trace the second layer. This process is repeated, layer by layer, until the entire object is complete.

Once the printing process is finished, the object is removed from the printer and washed in a solvent to remove any excess resin. Then, it is cured under UV light to harden the resin and make it fully solid.

SLA 3D printing is capable of producing highly detailed and complex objects with smooth surface finishes, making it a popular choice for applications such as prototyping, jewelry making, and dental applications.