3D printing science

Many people want to have a God T Ma Liang, will be able to draw anything on paper what happens. Now someone invented such a magical paintbrush, can draw something in the computer becomes a real three-dimensional objects in the home will be able to print out their own design gadgets, and even print out a three-dimensional building. This artifact is hot recently been a 3D printer.

According to reports, the world's 3D printers in 2012 the market size of $ 2.204 billion. From the country, the United States has the largest number of 3D printers, accounting for 38% of the world total; Japan ranked second, accounting for 9.7%; Germany 9.4%, ranked third; China was 8.7% in the fourth position. 

3D printer works, and we usually use the printer has similarities. Such as printing a document, first on the computer editing the document on a computer screen and then tap the "Print" button to copy digital files will be transferred to an inkjet printer, a layer of ink jet printer The surface of the paper to form a two-dimensional image. 

The difference is that in 3D printing, first through computer modeling software modeling, and then via SD card or USB flash drive to copy it to a 3D printer, print settings, software via computer-aided design technology (CAD) to complete slicing a series of numbers, and the slices of information to the 3D printer, the printer is a thin continuous level stacked until a solid molded body. 
3D printers and traditional printer biggest difference is that it uses the "ink" is real raw. 

Can now be used to print a variety of media types, including plastic,electrolytic manganese powder, ceramic and rubber substances. Some printers can combine different media, so print out a hard and a soft object. 
Extended possibilities ...... 

Undoubtedly, 3D printers are expanding popularity of industrial imagination to the limit. For example, 3D printing company has been able to print directly manufactured with nylon seamless swimsuit. And this is just a start, perhaps the future of any kind of clothes can be manufactured through digital technology, without human or sewing machine complete. 

Today, 3D printing technology is being applied all walks of life. Previously may feel the bone is broken, can only wait for it to grow their own good, but the new technology to tell us, can print out a bone, received its original position. Abroad, there is a 83-year-old man, suffering from sprayed welding alloy powder infection and replaced by 3D printers "print" out of the jaw bone. This is the first in the world to use 3D printing products that do human bones of the case. 

Through 3D printer to print out the model, but also allows the design department to create a better product. In the construction industry, the engineers and designers have been accepted with a 3D printer architectural model, this method is rapid, low cost, environmentally friendly, beautifully produced, entirely consistent with the designer's requirements, while saving a lot of material. 

In short, 3D printing products both in terms of cost, speed and accuracy, and better than conventional produce something much better. The 3D printing technology itself is very suitable for mass production, manufacturing, the use of 3D technology can bring many benefits, and even quality control are no longer a problem.

Really so perfect? 
3D printer is so widely used, can not help thinking this is really a good technology to benefit humanity. But as the saying goes, the scientific development itself is a double-edged sword, then, since the 3D printer can print a variety of models, it will also create something terrible to it? 

The answer is worrying. In May, an American put their own programs and works sent to the Internet, showed that: anyone who has an ordinary computer, internet connection, a roll of plastic, a nail and a 3D printer, you can create your own a pistol. 

Curious Australian police intend to try it yourself, the results in just 27 hours to create this murder weapon. The British reporter not only print out of this pistol, also successfully passed through a Aluminium Magnesium Alloy powder detector, this weapon will be put on the Eurostar train. Although the creators are to be warned that their behavior has also been stopped, but the incident triggered a U.S. Department of Homeland Security's deep concern: public safety will be threatened thereby? Unfortunately, they could not stop the manufacture of such weapons. 

Further speaking, make an illegal organization or antisocial people get this technology, not become a serious security risk? 
Not only in terms of security, 3D printing technology has also brought in a lot of ethical problems. Cloning technology has been debated for instance, if medical technology brings 3D printing to give unlimited possibilities, so easier to clone organs technology will inevitably bring greater debate and questioning. 

Focuses on security! 
Scientific and technological development will inevitably bring about a corresponding drawbacks, but we can not stop the pace of technological innovation. Just as we can not because there is a ban aircraft crash occurred, not because of the battery can be dangerous and no longer used, the same, 3D printers are likely to bring some negative impact, but how to properly guide the people's ideas, and how to develop appropriate the feasibility of rules and regulations, is fundamental. 

First, there must be a well-formed industry standards. Because, with a 3D model to different printers, different results obtained. 3D printer manufacturer of the materials, form and content vary widely, R & D costs and supply risks are great, it is difficult to form a chain. Therefore, the surface is bundled with a 3D printer 3D printing material, in fact it is material bundled with the printer. 

Secondly, both at the national level laws and regulations or industry standards, must reasonably limit the use of the technology, but also to strengthen the management and use of raw materials, scale, especially dangerous special materials. When necessary, or even need laws to be limited. If anything can be copied, what you can create anything you want, then, sounds beautiful, but also a lot to fear. 

Finally, by whom supervision? This requires not only the power of government departments, need more public awareness and understanding of this technology, the correct understanding of the technology to guide people, mobilize the masses to the supervisory role, and perhaps more effective.