2. 3D printing

3D printers

3D printing is the process of turning a threedimensional computer model into a real thing. It is a fairly new technology that is evolving rapidly and is surprising in its capabilities and adaptability. If until very recently 3D printing was a real breakthrough, now these technologies are being applied in an increasingly diverse area of life. Not only individual parts are printed, but also machine or house constructions. Increasingly, 3D printing is being used in medicine. Teeth, jaws and other bones or parts thereof printing and reproduction is no longer the latest discovery. Researchers are actively working to print and use human skin tissue and the heart. This will avoid waiting for the donor organ, reduce the risk of organ rejection or infection, and reduce other factors. 

The material used for printing varies depending on the purpose of the model. These materials are evolving along with the technology itself. Simple 3D printing takes place by melting a plastic spool. Carbon fiber is used to print patterns that need to be extremely light but durable. Other materials used in the machine or home industry, which are subject to particularly high requirements for durability, moisture, etc. In medicine, the innovator in printing human organs was the Swedish company Cellink, which invented the printing material for human organs.

^{Figure 10. Printing car  parts with a 3D printer}

^{Figure 11. House construction printing with a 3D printer} 

^{Figure 12. Organ printing with a 3D printer}