Double-created Zhoushan West Branch Taiyuan exhibition area, a model printed in 3D. Reporter Ma Liming
In the exhibition area of ​​the Shuanghuang Model Office of Taiyuan City, the “3D Printing Public Service Platform†attracted everyone to watch. What is 3D printing technology? How far is it from production and life applications, and what level of technology are we at? With these questions, the reporter conducted an interview.
The audience experienced a live call "too amazing"
At the beginning of the event, the 3D printing public service platform display area attracted many exhibitors to visit and learn. On-site exhibiting a 650×600×400mm standard desktop 3D printer, project staff Wang Chenyang introduced a simple pen model into the machine, and then heated the machine to a certain extent to start printing.
Wang Chenyang explained that after the temperature is raised, the filamentous hot-melt material inside is melted, turned into a filamentous liquid, and then solidified by air. Finally, it can be printed layer by layer according to the input model, and finally formed. Waiting patiently for more than two hours, in the end, a perfect pen holder is presented in front of everyone, almost indistinguishable from the previous 3D model. The audience at the scene couldn't help but sigh. "It's amazing to touch the 3D printer for the first time!" "Oh my God, it really seems like magic, so I got a pen holder!" The pen can be colored, the staff can say that it can be done, painting and painting can be done.
Wang Chenyang told reporters that this desktop 3D printer, like the one shown, has now entered many primary schools. Because of the low cost and simple operation, many elementary schools offer interest classes, and children can design simple models and print out what they like.
3D technology has changed from reduced material manufacturing to additive manufacturing
3D printing, a kind of rapid prototyping technology, is a technique of constructing an object by layer-by-layer printing based on a digital model file using a bondable material such as powdered metal or plastic. The working principle of the 3D printer is basically the same as that of the ordinary printer, except that the printing materials are different. The printing materials of the ordinary printer are ink and paper, and the 3D printer is equipped with different "printing materials" such as metal, ceramic, plastic, sand, etc., which is real. In the raw materials.
After the printer is connected to the computer, the "printing materials" can be layered up by computer control, and finally the blueprint on the computer becomes a real object. Cheng Xu, a staff member of the project, said, “In the past, the use of reduced material manufacturing, the reduction of materials similar to engraving, will waste a lot of materials, and we now change the way of thinking, using additive manufacturing, basically no waste of materials, greatly reduced Printing cost."
On-site demonstrations are Maker Bot's fifth-generation desktop 3D printers imported from abroad. Cheng Xu introduced that the current 3D printing technology print accuracy is quite high, only 0.01mm difference from the theoretical value. Maker Bot's fifth-generation desktop 3D printer features a newly designed smart printhead, motion-controlled lift that produces high-quality and high-resolution prototypes and complex models with faster print speeds.
Professor Wang Jianhong from the North University of China, the technical leader of the project team, said that such 3D printing technology is not only foreign, but the technology and performance of 3D printers launched by North University are comparable. The technology will focus on aerospace, animation, medical services, architectural design, industrial product design and many other fields. “As long as there is a model, our 3D printer can print almost anything, even if things are complicated.â€
The project team spares no effort to promote and apply
At present, for consumers, 3D printing may sometimes “look beautifulâ€, but when it comes to printing specific things, there is still a gap in the demand for the current state of the industry. For example, if you print an ordinary plastic comb, if the cost is 20 yuan, the time will take two hours. It is estimated that many consumers will say "no".
Not all materials can be used to make glue and powders that are suitable for printing. Cheng Xu explained, “The materials that can be printed on 3D printers are mainly paraffin powder, metal powder, polymer powder, resin, etc. However, if you want to print the ideal product, you must use the same material as the model, so it is limited by materials.†Due to the scarcity of 3D printing technology talents and the monopoly of foreign technology, most domestic 3D printing companies still advertise. In the popularization stage, the input and output are small, and the market has not been opened.
However, this is the direction that the 3D printing public service platform project team has spared no effort to break through. At present, the project team is committed to research and development and improvement of 3D printing technology, focusing on the first industrialization of this technology, in the industrial field, and then gradually enter the family life application.
Mr. Li, who is also on the spot, is also an entrepreneur. He is full of confidence in the future development of 3D printing technology. “If you want to make 3D printing technology popular and family, you must reduce the cost of technology. Our technicians continue to improve their research capabilities." Mr. Li said, "In the future, 3D printers will be able to spread to everyone's lives and provide convenient services for everyone. Just like the expensive and huge computer, after a few years, enter After ordinary people's homes, they must be flexible, low-cost desktops and notebooks."
(Editor)
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