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How close is 3D printing to us? 3 minutes to understand 3D printing technology

November 04, 2019

When it comes to 3D printers, most people think of the application of large-scale industries such as aircraft, military industry, construction, etc., which are expensive. It seems that they are far away from our life. However, with the continuous development of technology, today's 3D printers have become more and more popular, and have entered thousands of homes.

Seven years ago, Professor bourell DL of the University of Texas at Austin said that there must be one 3D printer in every four kilometers in the United States. Today, 3D printer is a necessary tool for every family in developed countries in Europe and America. From the rise to maturity, China's 3D printing technology has gradually stood on the stage of the international mainstream market, and has been popularized in China along the path of two-way development of civil and commercial, and gradually penetrated into all walks of life.

Since its establishment, Shenzhen chuangxiang 3D Technology Co., Ltd. has established the position of "preacher of 3D printing industry", focusing on the R & D and manufacturing of consumer and industrial 3D printers, providing efficient and affordable 3D printing comprehensive solutions for individuals, families, schools and enterprises, which are affordable for everyone, can be used by everyone, and can be used by everyone, so that 3D printing really benefits everyone Human life.

Popular Science Knowledge: What is 3D printing?

What's the difference between 3D printing and ordinary printing we often see? First of all, ordinary printers print flat documents, using ink or toner as consumables, while 3D printers print solid objects. These physical models are built and sliced by the 3D modeling software of the computer. The slicing data is converted into special code and transmitted to the 3D printer. The 3D printer prints the 3D model layer by layer according to the slicing data, and finally prints it into the physical object. Of course, the consumables used by 3D printers are more diverse. The main types of 3D printing technology are as follows:

I. FDM (fused deposition rapid prototyping): main materials ABS, PLA, etc

The materials of FDM process are generally thermoplastic materials, such as PLA, ABS, nylon, etc., which are fed in the form of filaments. The materials are heated and melted in the nozzle. The nozzle moves along the cross-section and filling track of the part, extrudes the melted material, solidifies the material rapidly, and binds with the surrounding material. Each layer is stacked on the basis of the previous layer, which plays a role of positioning and supporting the current layer.

SLA (light curing molding): main material photosensitive resin

UV curing is the earliest rapid prototyping technology, which is based on the principle of photopolymerization of liquid photosensitive resin. This kind of liquid material can undergo photopolymerization rapidly under certain wavelength and intensity of UV irradiation, and the molecular weight increases rapidly, so the material will change from liquid to solid. At present, UV curing is the most researched method and the most mature one in technology. Generally, the thickness of the layer is 0.1 to 0.15mm, and the precision of the formed parts is high.

III. DLP (light curing molding): main material photosensitive resin

DLP molding technology is similar to SLA molding technology, but it uses a high-resolution digital light processor (DLP) projector to solidify liquid photopolymer, which is light cured layer by layer. Because each layer is solidified by slide like flake, the speed is faster than the same type of SLA stereo printing technology. The technology has high molding precision, and can match the durable plastic parts in material properties, details and surface finish.

IV. SLS (selective laser sintering): main material powder material

SLS process is also called selective laser sintering. SLS process is formed by powder materials. Spread the material powder on the upper surface of the formed part and scrape it flat; scan the cross section of the part on the newly laid layer with a high-intensity CO2 laser; the material powder is sintered together under the high-intensity laser irradiation to obtain the cross section of the part and bond with the formed part below; when the cross section of a layer is sintered, lay a new layer of material powder and select the lower layer to be sintered Section.

Relevant policies: 3D printing policy

As major economies around the world are vigorously promoting the revival of industrial 4.0 manufacturing industry, industrial 4.0 is playing an increasingly important role in the world. The rapid development of industrial robots, 3D printing, industrial Internet of things, cloud computing, virtual reality and artificial intelligence will bring great changes to the trend of the whole personal civilization.

On May 19, 2015, the State Council officially issued made in China 2025. This is considered as the Chinese version of the "industry 4.0" development plan. In this plan, 3D printing (additive manufacturing) as a representative emerging technology occupies an important position. It has appeared six times in the full text, running through the important sections such as background introduction, improvement of national manufacturing innovation ability, deep integration of informatization and industrialization, breakthrough and development in key fields, and integrating into the promotion of intelligent manufacturing Thread.

Application field: what can 3D printing do

In the global market, 3D printing applications focus on consumer electronics, industrial devices, automobiles, aerospace, medical, dental, construction or scientific research. In China, 3D printing has a strong foundation in personal use, and is gradually extending to family applications; in the field of education, it is gradually popularized in an all-round way, and is expanding in the field of enterprise applications.

I. personal field

In terms of personal use, at present, with the advantages of economic benefits, high cost performance, stable operation and fine printing, consumer 3D printers continue to affect the daily work and life of individual players, and consumer 3D printers have begun to be implanted into people's hearts.

In recent two years, creative 3D consumer 3D printers are growing rapidly in domestic personal consumption groups. Tmall, Jingdong and other e-commerce platforms maintain the first place in the list all the year round, and accumulate a large number of personal consumption groups, and gradually spread from the economically developed cities to the whole country. The development trend of consumption growth shows that individual consumers have become the main force of 3D printer consumption.

From individual players, enthusiasts, geeks, enthusiasts to designers and engineers, the demand for personalization in China is gradually increasing, while 3D printer enterprises are vigorously promoting popularization, constantly developing and optimizing products, and the cost is gradually reaching to about 1000 yuan. The product function and quality are constantly improving, while the price is no longer an obstacle for consumers to choose. 3D printer Has gradually been favored by individual consumers.

At the same time, the imagination space for consumer 3D printers to realize personal creativity is expanding. Stirling Backus, a professor of physics at Colorado State University, uses the creative 3D cr-10s 3D printer to build a 1:1 Lamborghini for only $20000. In China, from the perspective of creating creative works of 3D individual users, it is no longer satisfied with quietness.

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With the help of the creative 3D printer, foreign physicists have built the super run Lamborghini with only 20000 US dollars

II. Family field


The application of 3D printer in the home can be regarded as a miniature "mobile micro factory". When users lose an item, they can download and print out the relevant product models through their own design or through the network. Even the vases, hangers, lampshades, toys and so on can be printed out by 3D printers. Compared with online shopping, making them by hand can add a lot of fun to the family atmosphere.

In developed countries in Europe and America, affected by garage culture, 3D printer has become a necessary product for families like electrical appliances, with a large range and frequency of application. It is normal for a family to have 3-5 3D printers, and creativity and hands-on become an essential part of life. The application of domestic families is in the cultivation period. In terms of children's toys and gifts, 3D printers have gradually become the best helper for children's growth because they meet the dual advantages of thinking development and creative objects. With the continuous popularization of 3D printers in China, the continuous improvement of consumption awareness, the gradual exploration of consumption threshold and the continuous development of economy and society, 3D printers will become the standard demand of family life in the future, like the development path of mobile phones, televisions, computers and automobiles, from "luxury" to necessities.

III. Education

In September 2015, the Ministry of Education issued the guiding opinions on comprehensively and deeply promoting the work of educational informatization during the 13th Five Year Plan period, which said: "regions with conditions should actively explore the daily application of new technology means in the teaching process and explore the new education mode of steam Education (Science, technology, engineering, art, Mathematics)." In recent years, many educational institutions have combined 3D printing technology with teaching system, and 3D printers have been widely used from kindergarten to university.

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Create 3D cr-100 into kindergarten and introduce 3D printing into teaching practice

In May this year, 30 students from a primary school in Kunming, Yunnan Province, worked together for a month to carefully print the 1:100 scale model of the school with the creative 3D cr-100 3D printer. When students in Shenzhen were studying in the United States, they gave the 3D printer of chuangxiang as a special gift to the mayor of Winchester. At the same time, in the first 3D printing national competition jointly sponsored by China employment training technology guidance center of the Ministry of human resources and social security and China Electronic Chamber of Commerce, chuangxiang 3D exclusive title was given, and chuangxiang 3D printer was used as the competition machine throughout the whole process, covering secondary, vocational and undergraduate colleges across the country.

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Student representatives at the summer camp sent the cr-100 3D printer to the mayor of Winchester

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Creative 3D exclusively named 2019 China skills competition - "Creative Cup" 3D printing modeling technology competition

At present, the application of 3D printing in education is the most popular field in China. Many schools are vigorously exploring the combination of 3D printing maker education and teaching level, and gradually entering the teaching classroom, offering 3D printing characteristic courses, setting up 3D printer maker laboratory, stimulating students' hands-on and brain power, and promoting the progress of science education. In the field of education, early contact with 3D printing in primary and secondary schools will accelerate the promotion and popularization of 3D printing in the future. With the comprehensive application of 3D printing in Colleges and vocational schools, the society's awareness of 3D printing is increasing. At the same time, 3D printing has entered the research field of higher education, and the imagination space of 3D printing will be further released.

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Chuangxiang 3D donated Cr20 3D printer to Guizhou Mountain School

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Popularize 3D printing knowledge for students in poor mountainous areas

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Create 3D ender-3s 3D printer to help the modernization of robot and 3D design in Central South University

IV. Enterprises

Under the background of 3D printer upgrading, it is obvious that the traditional way of manufacturing molds can not meet the personalized needs of enterprises. Some enterprises have been aware of consumers' pursuit of diversified consumption, and began to use cutting-edge technology to achieve the purpose of optimizing production process, saving production costs and improving enterprise efficiency.

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3D printing based on additive manufacturing is inherently efficient, material saving and personalized. It has natural advantages in the R & D department or sample room of an enterprise. From design to printing, it will overturn the traditional mold opening cycle and trouble of modification, greatly reduce the time cost of R & D verification and sample manufacturing, and lead in mold, auto parts, toys, ceramics, footwear, home appliances, etc Domain has been widely used.

Application of 3D printer in industrial field

Compared with the traditional manufacturing of reducing materials, 3D printing will greatly reduce the consumption of raw materials in the manufacturing process, almost no waste of raw materials. According to statistics, the proportion of saving raw materials by 3D printing will be as high as 70% ~ 80% compared with the traditional manufacturing of reducing materials. At the same time, 3D printing has broken through the complex, precise, personalized and other problems that cannot be realized in traditional process manufacturing. In the complex modeling that is difficult to develop or produce in traditional process, 3D printing has given more opportunities to explore.

 Source from: https://creality3dpro.store/