SLA (Stereolithography)/DLP/LCD 3D printers cure the resins by illuminating them with a light source of specific wavelength, so throughout the printing process the final product is cured and printed in layers. The SLA/DLP/LCD 3D printing machines prints accurately fine and complex structures and can print very detailed models. Therefore, it is very suitable for various applications, from prototyping, lost wax casting, practical industrial applications to extremely fine jewelry or dental. The technical difference between SLA, DLP and LCD 3d printers is the light source. DLP uses a projector, SLA a laser and LCD a liquid crystal display. Over time LCD 3d printers become more and more popular, outperforming SLA and DLP, because of their affordable price, very easy maintenance and high reliability, due to the lack of many moving or complicated parts.