The initial sample of the product is commonly known as prototype. Early industrial samples were handmade. When the drawing of the product comes out, the finished product may not be perfect, or even can't be used. Once the defective products are put into production, they all will be scrapped, which greatly wastes manpower, resources and time. Prototype is generally a small number of samples, the production cycle is short, consume less of manpower and material, can help quickly find out the shortcomings of design to be improved, providing sufficient basis for the design and mass production.

Mould is a kind of tool which can produce parts with certain shape and size. In industrial production, it is used for injection moulding, blow moulding, extrusion, die-casting or forging moulding, smelting, stamping and other methods to obtain the required moulds or tools of products, is "mother of industry" titled. Mould manufacturing and development include such processes like production, verification, testing and repair, almost all industrial products must rely on moulding.

Prototype and mould are broadly applied in the industrial manufacturing for customers confirming the details before mass production.

It follows that prototype & mould have the following functions in industrial product development and manufacturing:

Program

The design and process of prototype determines the quality of mould to a large extent, and then affects the quality of the final product. Mould requirements are: accurate size, surface smooth and clean; Reasonable structure, high production efficiency, easy automation and manufacture, long life, low cost; reasonable and economical design. For the plastic mould and die casting mould, factors including pouring system, molten plastic or metal flow state, the position and direction of entering the cavity should be taken into consideration, that is to build a rational runner system.

The application of 3D printing in the design and manufacturing of prototype and mould is self-evident. Prismlab series of 3D printers adopting LCD light curing system is able to print samples, which can completely replace the traditional prototypes and moulds to some extent, thereby not only expediting mould opening, but also integrating revolutionarily the processing and improve the quality.

Applications of SLA 3D technology in mould design and manufacture:

● Mould-free manufacturing realized by 3D printing breaks the limitation of traditional mould. Especially in new product R&D, customization, small-batch production, complex shaped products and non-splicing integrated manufacturing, 3D printing has been able to substitute traditional craft and profoundly influence the mould industry.

● To generate moulds or parts for direct use. E.g. injection mould, drawing dies, die-casting mould, etc., also enables mould repair.