Principle of 3D printer printing:
3D printer a cumulative manufacturing technology, that is, rapid prototyping technology of a machine, it is a digital model file as the basis, the use of special wax, powdered metals or plastics and other bondable materials, through the printing of layer by layer of bonding material to create three-dimensional objects.
At this stage three-dimensional printers are used to manufacture products, printing layer by layer to construct the technology of the object, the principle of 3D printers is to put the data and raw materials into the 3D printer, the machine will follow the program to build the product layer by layer.
3D printers stack thin layers in a variety of forms, 3D printers and traditional printers, the biggest difference is that it uses the "ink" is the actual raw material, stack thin layers in a variety of forms, can be used for the printing of a variety of media, from a wide range of plastics to metals, ceramics, and rubber-like substances.
The 3G is the first of its kind in the world.
Benefits of 3D printers: low cost, speed, accuracy, protection of the environmentHoshnevis says that using the process is not only cheap and fast to build, but also protects the environment. That's because it's substantially less expensive to build and less material.
Expanded:
3D Printers (3DP for short) is an amazing printer designed by an inventor named Enrico Dini that can not only "print" a complete building, but also give astronauts a chance to use it in a spacecraft. It can even print the shape of any desired object for astronauts in a spacecraft. But a 3D printout is a model of an object, not its function.
Brief history
Timeline
The idea of 3D printing originated in the United States in the late 1800s and was developed and popularized in the 1980s. 3D printing is one of the newest high-dimensional embodiments of technological fusion modeling.
At the end of the 19th century, the United States researched the photographic sculpture and geomorphic forming technology, and then produced the printing technology of 3D printing core manufacturing ideas.
Before the 1980s, the number of three-dimensional printers is very small, mostly concentrated in the hands of "Frankenstein" and electronics enthusiasts. They were mainly used to print things like jewelry, toys, tools, and kitchenware.
Even automotive experts printed out car parts and then ordered real commercially available parts based on the plastic models.
In 1979, U.S. scientist RF Housholder was granted a patent for a similar "rapid prototyping" technology, but it was not commercialized.
In the 1980s there was a prototype, known as "rapid prototyping," and in the mid-1980s SLS was developed and patented by Dr. Carl Deckard at the University of Texas at Austin, a project sponsored by DARPA.
By the late 1980s, U.S. scientists had invented a printer that could print three-dimensional effects and had successfully brought it to market, and 3D printing technology had matured and was widely used.
Ordinary printers can print some reports and other flat paper materials. And this latest invention of the printer, it not only makes the three-dimensional items to reduce the cost, and stimulate people's imagination. The application of 3D printers will be more widely in the future.
In 1995, the Massachusetts Institute of Technology coined the term "three-dimensional printing," when graduates Jim Bredt and Tim Anderson modified the inkjet printer program into a bound solvent extruded into powdered solutions, rather than the ink extruded on the paper program.
Sales of 3-D printers have gradually expanded since 2003, and prices have begun to fall.
R&D products
Home 3D printers
Germany has released one of the highest-speed nanoscale micro 3d printers to date, the Photonic Professional GT. This Photonic Professional GT 3D printer, which makes nanoscale microstructures, prints three-dimensional objects no larger than the diameter of a human hair with the highest resolution and fast print width.
Smallest 3D printer
The world's smallest 3D printer comes from the Technical University of Vienna, developed by its chemical researchers and mechanical engineers. The mini 3D printer is the size of a large milk carton, weighs about 3.3 pounds (about 1.5 kilograms) and costs 1,200 euros (about 11,000 yuan).
Compared with other printing technology, this 3D printer cost is greatly reduced. The developers are still conducting further experiments on materials and technology for the printer, and hope to release it soon.
The largest 3D printer
Shi Yusheng's research team at the Huazhong University of Science and Technology (HUST) has achieved a major breakthrough after more than a decade of efforts to develop the world's largest "3D printer". This "3D printer" can be processed parts length and width of the maximum size of 1.2 meters.
Theoretically, as long as the length and width of the parts less than 1.2 meters (height does not need to limit), can be through this machine "print" out.
This technology will be complex parts manufacturing into a simple from the bottom to the top of the two-dimensional superposition, greatly reducing the complexity of the design and manufacturing, so that some of the traditional way can not be processed exotic structure of the manufacture of fast, some complex castings by the traditional production of 3 months shortened to about 10 days.
Dalian University of Technology to participate in the development of the largest processing size of 1.8 meters of the world's largest laser 3D printer into the debugging stage, which uses the "contour line scanning" of the unique technology route, you can make large-scale industrial prototypes and complex structure of the casting mold.
This laser 3D printing method based on "contour failure" has been awarded two national invention patents. The laser 3D printer only needs to print the contour line of each layer of the part, so that the contour line of the sand coating resin carbonization failure, and then in accordance with conventional methods in the 180 ℃ heating furnace will be printed sand heating curing and post-processing stripping, you can get the prototype parts or casting molds.
The processing time of this printing method is proportional to the surface area of the part, which greatly improves the printing efficiency, and the printing speed can reach 5-15 times of the general 3D printing.
Color 3D printers
In May 2013, a new line of 3D printers of this type was launched, the "ProJet x60" series.
The ProJet brand has devices for four main modeling methods.
The other three are types that use a photocurable resin, including a type that hardens the liquid surface of the photocurable resin with a laser, a type that hardens the photocurable resin by irradiating light after it is sprayed out of a nozzle (wax can also be used as a modeling material for this type), and a type that irradiates light that passes through a mask into the photocurable resin on a film.
The high-end models ProJet 660Pro and ProJet 860Pro can use CMYK (Cyan, Magenta, Yellow, and Black) four-color binder to achieve more than 6 million colors ProJet 260C and ProJet 460Plus use CMY three-color binder).
3D Printed Robot
On November 23, 2013, Xi'an University of Electronic Science and Technology (XUEST) exhibited a 3D printed robot, which is a remote body-control service robot, and its main function is to take care of the elderly. Many elderly people have mobility problems, with a robot assistant, just make gestures to the camera, the robot can imitate the action to do housework.
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