All can eat to see these 3D printing uses

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Tencent Digital (Wang John) 3D printing is no longer a new concept. More and more 3D printing products are appearing in the market. 3D printing has extended from the original model making field to auto, aerospace, medical, education, architecture, Toys and other fields. From an economic point of view, 3D printing can shorten the time for the product in the design phase, making it easier for designers to make models. In the field of manufacturing, 3D printing has unlimited potential. Product parts can be reduced in cost by 30% through 3D printing technology, and the manufacturing cycle can be reduced by 40%. There has been news of 3D printing houses, 3D printed bones, and even 3D printed human organs. Today we will take a look at what wonderful uses of 3D printing technology are.

1, unlock the phone

Anil Jain, a professor at Michigan State University, specializes in biometric technologies such as facial recognition and fingerprint scanning. He hopes to strengthen the difficulty of cracking this technology, making it impossible for hackers to start. However, the police had new ideas and hoped that he could unlock a dead person’s mobile phone by printing a fingerprint in 3D. The situation was like this: A man was murdered and the police thought that there might be some clues in his mobile phone. However, because there was no password or fingerprint, the police could not unlock the mobile phone. However, they did not seek help from the mobile phone manufacturers, but found Jain, hoping that he could use 3D printing technology to copy the fingerprints of the deceased to unlock the phone.

Fingerprint models currently printed on 3D printers often cannot unlock the phone because many cell phone fingerprint readers use capacitive technology and rely on closed microcircuits to function properly. The fingerprint on the finger causes some of the circuits to break or come into contact, thereby generating a fingerprint image. The conductivity of the skin is sufficient to close these circuits, but print replicas made of plastic do not have this conductivity, so scientists covered a thin layer of metal particles outside the 3D printed fingers, making the fingerprint scanner smooth Read these fingerprint information. However, this method has yet to be improved. At present, the finger model has not yet been delivered, but after a few weeks, after detailed tests, they will hand over copies of the fingers to the police. By that time, the police will use a 3D printed copy of the deceased finger to unlock his cell phone. With regard to the legal issue of copying fingerprints to unlock mobile phones, some experts also stated that since the person who needs to copy fingerprints has died and the copy fingerprints are necessary to detect the case, the police do not infringe upon their right to privacy.

2, print bird eggs

The vulture is an animal that feeds on corpses. People generally do not sympathize with the animal. However, in order to ensure species diversity, environmentalists at the International Raptors Centre in the UK hope to print vulture eggs with 3D printing technology. Ways to get African vultures out of danger of extinction. The vulture eggs that are printed in 3D are homogenous and identical to the real vulture eggs. But it has built-in sensors that can help scientists gather the complex data of a vulture when it hatches. At present, staff of the International Bird Center for Raptors have already begun testing the artificial vulture eggs, placing vulture eggs in cages of captive vultures to test temperature and temperature gradients inside the vulture nests, atmospheric pressure, humidity, carbon dioxide concentration, and illumination. Strength and rotation data. It is worth mentioning that the project will also be conducted in an open source way. You can view the method of making vulture eggs on the eggduino website.

3, printing weapons

In 2013, the arms dealer Defense Distributed produced the world's first 3D pistol, a 38-caliber liberator pistol. In 2014, the company demonstrated another AR-15 assault rifle capable of firing hundreds of 5.56mm bullets. Subsequently, the company also developed and manufactured a Colt CM109 submachine gun. The CM109 is heavier and heavier than the AR-15. It also uses a bullet with a larger diameter of 7.62 x 51 mm. It has a longer range than the 5.56 mm bullet and has a stronger penetration and greater lethality.

Also in 2013, two British reporters purchased a CubeX 3D printer from 3D Systems. After a simple design, they printed 15 pistol parts and purchased a pistol striker from the hardware store. After some simple assembly, it became a real pistol. Subsequently, they passed the security check at St Pancras International Station during the weekend rush hour and successfully boarded the Eurostar train. Although the station has a strict security inspection equipment, but two reporters will be divided into three parts of the 3D printing pistol in the clothes, and put the striker and bullets together, hidden in the watch tray, successfully passed the station security equipment. After boarding the train, two reporters assembled a pistol within 30 seconds. The British government was obviously frightened by the two reporters and immediately called for the railway and aviation departments to step up security inspections. Radio New Zealand also said: "This is a serious threat to social security, people can print 3D pistols at will, and even pass security inspections. This is extremely terrible and should attract the attention of the community."

4, print the unborn baby model

The British video parenting community and website Channel Mum recently released a set of information predicting that “3D Printed Fetus” will be on the list of childbirth items. Several companies have now begun to provide this service. First by converting the multidimensional color image of the unborn baby into a 3D model, then using a 3D printer to print a human-sized plastic model.

In fact, this technology has existed before. As early as 2012, 3D printed fetuses appeared. In the following years, more and more fetus reports have been printed. More than 6,000 Youtube users believe that Channel Mum’s predictions, in a small survey of 1,000 parents, showed that 27% of parents said they would be willing to consider 3D printing of unborn baby models.

5, print cosmetics

Finding a good-looking makeup often requires a lot of time and money. However, in fact, the raw materials of cosmetics are not too bad, but some products are expensive. The Mink 3D printer offers another option for buying cosmetics. It uses the same ingredients as the raw materials sold in the store to print eye shadows and lip gloss. The biggest feature of this printer is that it can adjust the printing color. Whether it is a picture you see on the Internet or the color you choose from the palette, even the color of your favorite skirt, you can print it. come out. Once you have decided on the color you want, you can use software to enter the color hexadecimal code into the drawing software, and then wait for the machine to print out your own makeup. Are the prodigal daughters tempted? This printer is priced at 200 US dollars (about 1328 yuan), it is not expensive Oh, better cosmetics are more than this price.

6, print food

Sci-fi movies can often see such scenes. Simply tap the button and the food they want is automatically created. However, after the advent of 3D printing technology, this is not too difficult. The Finnish Technical Research Centre of Finland (VTT) is working on developing how to apply 3D printing to home eating or snack vending machines so that consumers can get customized products. The 3D food printer adopts a brand-new The electronic blueprint system not only prints food, but also helps people design different styles of food. The raw materials used in this printer are all edible, such as chocolate sauce, batter, cheese and so on. Once people draw good food patterns on the computer and mix them with raw materials, the electronic blueprint system will show the printer's operating procedures and then the food printing process can be completed. In addition, the U.S. military is also very interested in this project and claims that it will not provide "customized nutrition" according to the physical condition of each soldier. They think that 3D printing technology can realize this idea. It is expected that by 2025, soldiers will be able to detect their physical or nutritional status through wearable devices, which will greatly reduce the cost and time for physical examination and make it easier to formulate a customized diet.

7, printing space equipment

According to a report from the BBC in February this year, a 3D printer will be sent to the International Space Station. It will be the first production equipment ever sent to space by humans. Before that, every item that humans sent to space must be manufactured on the earth and then launched into space. This method is extremely costly and the “postage” per gram of space cargo is expensive. Human exploration of space is deepening. To survive in space, we must be able to escape the earth and produce the necessary components in space. If the parts are too bulky, the space printer will print the parts separately and then let the robots assemble them into complete parts. This system is called "Archinaut" and the printing and assembly system for large parts is expected to be formed within 3 to 4 years. In the future, it is expected that the equipment will no longer be transported to space via launch rockets, but will be produced directly in space.

Maybe one day, everything in the world can be printed out on a 3D printer. We don't need to go to the mall to buy anything. Just press the button at home to get what we want. Here, otaku nerds do not Embarrassingly, my husband’s wife cannot print it out, but she also needs to invest time and energy to fight for herself.

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