Sculpting Michelangelo's David the size of a chess piece is a simple matter for a computer using three-dimensional, or 3D, rapid prototype (RP) technology. Much the same way an inkjet printer produces a two-dimensional image from a digitized file, 3D rapid prototype technology can do the same with actual objects for handling in real space. Relying upon numerous techniques, equipment, and materials, 3D rapid prototype processes generally work from computer-aided drafting (CAD) objects for design or manufacture; they construct them by generating one layer of material at a time until a perfect replica is formed. This construction aids creation of an almost limitless number of complex shapes and objects, revolutionizing design and production efficiency.
Prototyping generally consists of three aspects: constructing models for manufacture, product review, and refinement. Users transform computer schematics directly into prototypes. Designs are evaluated before costly production processes begin, and product surfaces and finishes can be tested.
Manufacturers can customize almost innumerable product shapes for mass production or client customization. Prototype iterations, or variations, can be refined to suit after review from production teams or customers. This permits greater flexibility and lower cost in product development, compared to traditional time-consuming prototyping by machine or hand.
