Principle Technology
3D Printer, has successfully printed a Formula 1 car [2]
Ordinary printers used in daily life can print computer-designed flat items, and the so-called 3D printer and ordinary printers work basically the same principle, only the printing material is a little different, ordinary printers, the printing material is the ink and paper, while the 3D printer Equipped with metal, ceramics, plastics, sand and other different "print materials", is the actual raw materials, printers and computers connected to the computer through the computer control can be "print materials" layer by layer superimposed on the computer blueprints into physical objects. Generally speaking, 3D printer is a device that can "print" real 3D objects, such as printing a robot, print toy cars, print a variety of models, and even food and so on. The reason why it is commonly referred to as a "printer" is based on the technical principles of ordinary printers, because the layering process is very similar to inkjet printing. This printing technology is called 3D stereoscopic printing technology.
Printing process
Three-dimensional design
British engineers "print" unmanned aircraft [9]
Three-dimensional printing of the design process is: the first through the computer modeling software modeling, and then will be built into a three-dimensional model of the "zoning The design process of 3D printing is based on modeling through computer modeling software, and then "partitioning" the completed 3D model into layer-by-layer sections, or slices, to guide the printer in printing layer by layer.
The standard file format for collaboration between design software and printers is the STL file format. An STL file uses triangulated surfaces to approximate the surface of a simulated object. The smaller the triangles, the higher the resolution of the resulting surface.PLY is a scanner that produces 3D files by scanning, and the resulting VRML or WRL files are often used as input files for full-color printing.
Applications
Naval ships
On July 1, 2014, the U.S. Navy experimented with the use of advanced manufacturing techniques, such as 3D printing, to rapidly fabricate ship parts in hopes of increasing mission speed and reducing costs.
Aerospace Technology
In late September 2014, NASA is expected to complete its first imaging telescope, with essentially all of its components manufactured through 3D printing, making NASA the first to attempt to manufacture an entire instrument using 3D printing.
Medical field
3D-printed liver model
A scientific research team consisting of the University of Tsukuba and Dai Nippon Printing Co. in Japan announced on July 8, 2015, that it has developed a method to create a three-dimensional model of the liver that can be seen in the internal structure, such as blood vessels, at a low cost using a 3D printer. The method, if put into use, is said to allow the creation of a model for each patient, which will help confirm the order of surgery before surgery as well as explain treatment to patients.
3D printed skull
August 28, 2014, 46-year-old Zhouzhi farmer Hu master in his own house building, from the 3-storey fall to a pile of wood, the left cerebral cap was smashed, in the local hospital after surgery, Hu master although life is not damaged, but the left cerebral cap depression, in the eyes of others into a "half-head of the man! "
3D printed spine implanted in the human body
August 2014, Peking University research team successfully implanted a 12-year-old boy with a 3D printed spine, which is the world's first case. It is understood that the young boy's spine grew a malignant tumor after a soccer injury, and doctors had to choose to remove the spine where the tumor was located. However, what makes this surgery special is that the doctors did not use a traditional spinal transplant, but instead tried advanced 3D printing technology.
3D-printed palm to treat disability
In October 2014, doctors and scientists used 3D printing technology to fit the palm of a 5-year-old girl child in Scotland, England.
3D printed heart saves 2-week-old baby with congenital heart disease
On October 13, 2014, Dr. Emile Bacha, MD, of New York-Presbyterian Hospital, recounted the story of how he saved the life of a 2-week-old baby using a 3D printed heart. The baby had a congenital heart defect that creates "tons of holes" inside the heart. In the past, this type of surgery would require stopping the heart, opening it up and observing it, and then deciding what to do next in a very short period of time.