At the end of 19, the United States developed a new photographic sculpture and landform formation technology, which led to the core manufacturing idea of printing technology 3D printing.
Before the 1980s, there were few 3D printers, and most of them were concentrated in the hands of Frankenstein and electronics lovers. Mainly used for printing jewelry, toys, tools, kitchen supplies, etc. There are even auto experts who print out auto parts and then customize the parts that are really bought in the market according to the plastic model.
1979, American scientist RF Housholder obtained a patent similar to "rapid prototyping" technology, but it was not commercialized.
Formed in the early 1980 s, the scientific name was "rapid prototyping". In the mid-1980s, SLS was developed and patented by Dr. Carl Deckard of the University of Texas at Austin, and the project was sponsored by DARPA.
By the end of 1980s, American scientists had invented a printer that could print three-dimensional effects and successfully put it on the market. 3D printing technology has matured and been widely used. Ordinary printers can print some flat paper materials such as reports. This newly invented printer not only reduces the cost of three-dimensional objects, but also stimulates people's imagination. The application of 3D printers will be more extensive in the future.
1995, MIT coined the term "three-dimensional printing". Jim Bredt and Tim Anderson, then graduates, modified the scheme of inkjet printer and turned it into a solution of squeezing constrained solvent into powder instead of squeezing ink on paper.
Since 2003, the sales of 3D printers have gradually expanded, and the prices have also begun to decline. Household 3D printer
Germany has released a nano-scale micro 3d printer-Photonic Professional GT, which is the fastest so far. This photon professional GT 3D printer can make nano-scale microstructures and print three-dimensional objects with the highest resolution and fast printing width, which does not exceed the diameter of human hair.
The smallest 3D printer
The world's smallest 3D printer comes from Vienna University of Technology, which was developed by chemical researchers and mechanical engineers. This mini 3D printer is only the size of a milk carton, weighs about 3.3 pounds (about 1.5 kg) and costs 1200 euros (about 1. 1.0000 RMB). Compared with other printing technologies, the cost of this 3D printer is greatly reduced. R&D personnel are still conducting further experiments on the materials and technology of printers, hoping to make them available as soon as possible.
The largest 3D printer
After more than ten years' efforts, the Shi Yusheng research team of Huazhong University of Science and Technology made a major breakthrough and developed the world's largest "3D printer". The maximum length, width and size of the machinable parts of this "3D printer" have reached 1.2m. Theoretically, as long as the length and width are less than1.2m (height is not limited), all parts can be "printed" by this machine. This technology changes complex parts manufacturing into simple bottom-up two-dimensional superposition, greatly reduces the complexity of design and manufacturing, makes the manufacture of some strange structures that cannot be processed by traditional methods faster, and shortens the production of some complex castings from the traditional three months to about 10 day.
Dalian University of Technology participated in the research and development of the world's largest laser 3D printer, with the largest processing size of 1.8m, and entered the debugging stage. It adopts a unique "profile scanning" technical route, and can make large industrial samples and casting molds with complex structures. This laser three-dimensional printing method based on "contour failure" won two national invention patents. The laser 3D printer only needs to print out the outline of each layer of the part, so that the resin coated with sand on the outline will be carbonized, and then the printed sand will be heated and solidified in the heating furnace at 180℃ according to the conventional method, and the prototype or mold can be obtained. The processing time of this printing method is directly proportional to the surface area of the parts, which greatly improves the printing efficiency, and the printing speed can reach 5- 15 times that of general 3D printing.
Color printing 3D printer
20 13 May, the new 3D printer product "ProJet x60" series went on the market. The ProJet brand mainly has four kinds of modeling devices. The other three types are all types using photocurable resin, including the type of hardening the liquid surface of photocurable resin by laser, the type of curing by irradiating light after spraying photocurable resin from a nozzle (wax can also be used as this type of modeling material), and the type of irradiating photocurable resin on a film with light passing through a mask. The high-end models ProJet 660Pro and ProJet 860Pro can use four kinds of adhesives of CMYK (cyan, magenta, yellow and black) to achieve more than six million colors. Project260c and Project460plus use three kinds of adhesives of CMY).
3D printing robot
2013165438+123 October, xidian university exhibited a 3D printing robot, which is a remote somatosensory control service robot whose main function is to take care of the elderly. Many elderly people have mobility problems. With robot assistants, robots can imitate actions and do housework as long as they gesture at the camera.