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Currently available in a wide range of methods for additive manufacturing. The major differences in the method of layering and consumables used. Some methods are based on melting or softening materials to create layers: this includes selective laser sintering ( SLS ), selective laser melting ( SLM ), direct metal laser sintering ( DMLS ), printed by fusing layering ( FDM or FFF). Another focus is the production of solid models by polymerization of liquid materials, known as stereolithography ( SLA ). In the case of laminated sheet material ( LOM ), thin layers of material are subjected to a desired cutting path, followed by coupling together.

The materials can be used for LOM paper, polymers and metals. Each of these methods has its advantages and disadvantages, in connection with which some companies offer a choice of consumables for the construction of a model – or polymer powder. Printers working on technology LOM, often use ordinary office paper to build strong prototypes. The key points when choosing a suitable device is printing speed, the price of 3D-printer, the cost to print prototypes, as well as the cost and availability of compatible consumables.

Printers are made full metal pattern have relatively high cost, however, possible to use less expensive devices for the production of molds, followed by casting of metal parts.

3d printers comparison