The cabinet key that stored the official seal was taken away by the financial staff on a business trip. In a hurry, the staff used a 3D printer to copy a plastic key and unlock it again. This was the case in a 3D printing company in Zhongguancun last week. Will 3D printing copy keys provide new technical means for criminals? In response to this concern, industry insiders said that the cost of 3D printing is relatively high, and it is unlikely that thieves who are slamming the door will use this method.
3D printing key successfully unlocked
Mr. Wang is a graduate student at Tsinghua University and started a 3D printing company last year. Last Tuesday, his company needed to declare a support fund project for Zhongguancun Haidian Park, which will be closed at 5 pm. However, at 1:30 pm, when he wanted to take out the company seal from the cabinet, he found that the cabinet drawer key was gone. The financial staff of Xining who attended the exhibition took it away.
Mr. Wang found a spare key for a long time, did not find it, and tried to smash the cupboard, but the iron cabinet was difficult to open and failed. At this time, he thought that he could try to create a key to unlock with 3D printing. So, Mr. Wang asked a colleague in Xining to take a picture of the key, and then the technician spent 10 minutes to build the model. "Printing is completed in 5 minutes. Soon, the test is really open."
Can be successfully copied with photos
Why can the plastic key that is printed in 3D be unlocked? Mr. Wang said that the key to the mechanical lock is the shape. As long as the shape is the same, the column inside the lock can be opened to rotate and unlock, so even if the key is not made of metal, it should be successful. Wang Shidong told the Beijing Youth Daily reporter that if you want to succeed in 3D printing keys, the key is to take a photo of one to one and build the correct model.
Simply put, the basic principle of 3D printers is to complete a series of digital “slices†through computer-aided design techniques, and transfer these “slices†of information to the 3D printer controller. The 3D printer uses raw materials to gradually “slice†Stack up until a solid object is formed. The reporter of Beiqing Daily saw in the website of Mr. Wang that the main material used for 3D printing is plastic.
Does new technology fuel crime?
At present, 3D printing technology is mainly used in product prototype, mold manufacturing, art creation, jewelry production and other fields, which greatly enhances the efficiency and precision of production, and also develops in the fields of bioengineering, medicine, construction and clothing. The space.
Since 3D printing can make a variety of physical objects and print out a key to unlock it, isn't it easy to commit crimes? Mr. Wang has also worried about this issue, but he feels that the thief should not use the more expensive 3D printing technology. According to industry insiders, tools such as cutting tongs used by thieves may be easier than 3D printing. Car thieves can steal cars with hydraulic tongs. After all, 3D printing requires correct photography and modeling. "Mechanical locks are basically anti-gents. Not against villains."
3D printing can make a key, can you also print a pistol? According to industry insiders, 3D printing can indeed produce pistols, but industrial-grade metal 3D printers are used, and such equipment is subject to state control.
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