SLA resin parts manufacturing. Additive Manufacturing (3D Printing) technology through which pieces of epoxy resin with a high capacity for reproducing the details and an excellent precision are obtained. It is the most appropriate technology when manufacturing the master model, to subsequently make silicone moulds or prototypes to verify the geometry and visual appearance of a product. This technology, well considered for its precision and excellent surface finish, is used especially by technical offices, R & D departments and design centers of different industrial sectors.