Prototype is an early sample, model, or release of a product for test before mass production. A prototype is generally used to evaluate a new design to enhance precision by system analysts and users. Prototype are widely used in industrial manufacturing, whose function lies not only in checking the appearance and structure of the design, but also in lowering cost by avoiding the huge expense loss in case of failure in direct molding, and in saving time through the publicity of the products before mass production.
3D printing has been applied in prototype as follows:
1.3D printing is replacing traditional mould in small batch production, personalized customization, and products with complicated structure.
3D printing can print mould or mould parts directly, such as injection mould, drawing die, and die-casting die, or to restore mould.