Stereolithography (SLA) and Digital Light Processing (DLP) are two of the most mainstream 3D printing advancements around. Sharing various similarities, the two SLA and DLP fall into the tank polymerisation group of 3D printing advances. The two innovations have gone through a colossal development somewhat recently, venturing past their fast prototyping beginnings to creation. On a very basic level, the two SLA and DLP utilize fluid tars and a light source to deliver 3D-printed parts. Notwithstanding, a vital contrast between the two advancements lies in the kind of light source used to cement the material: with SLA, this is an UV light, while with DLP, a computerized light projector screen is utilized.SLA and DLP help to create innovative industrial designs.