Rapid Prototyping Technique additive processes

There are three main ways to create a rapid prototype. Formative techniques use machines to make raw materials into the desired shape. Subtractive processes start with a large solid, then remove material to make the shape desired. Additive processes rely on layering material over and over until the part or product reaches its final position and shape. 

The former method is an additive manufacturing process that employs liquid resins and high-intensity light beams to build 3D microstructures, a technique widely used in rapid prototyping. The photo-induced cross-linking happens upon the exposure of the liquid resin. 

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