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1. Definition

1.1. 3D printing refers to processes in which material is joined or solidified under computer control to create a three-dimensional object with material being added together

2. Application

2.1. Military

2.2. Pharmaceutical

2.3. Engineering

2.4. Aviation

2.5. Food

3. History

3.1. In 1986, American scientist Charles Hull invented the first commercial 3D printing machine.

3.2. In 1993, Massachusetts Institute of Technology got the patent of 3D printing technology.

3.3. In 1995, the ZCorp company of the United States obtained the only authorization from the Massachusetts Institute of Technology and began to develop the 3D printer.

3.4. In 2005, ZCorp company invented the first high definition color 3D printer “Spectrum Z510”

3.5. In November 2010, the Jim Kor team in the United States created the world's first auto car "Urbee", printed by 3D printers.

4. Advantage

4.1. Convenient

4.2. Fast

4.3. Material saving

4.4. Creationary

5. Disadvantage

5.1. Expensive

5.2. Hard to find specific material

5.3. Difficult to popularize

5.4. Quality problem