Stereolithography (SL) is one of the first 3D printing<\/a> \/ prototype construction<\/a> procedures. It makes it possible to manufacture precise components from plastics. In this process, the initially liquid plastic, which initially consists of monomers, is polymerized with a laser and thus solidified. The monomers polymerize at a specific wavelength so that the laser emits exactly that wavelength to start polymerization. By lowering the component platform within the resin basin, the currently solidified contour is lowered by a further layer into the resin bath so that the next layer can be exposed.<\/p>\n The accuracy of the component is determined by the mechanical precision of the lowering so that a very high accuracy can be achieved. The components are subsequently irradiated again from all sides with a light of the required wavelength, which further hardens the surface.<\/p>\n The subsequent finishing<\/a> of the components offers various possibilities for further applications. Due to its high precision, stereolithography is mainly used for the production of master models in vacuum casting<\/a>. The master model creates a negative in the silicone.<\/p>\n<\/div>