The Matterhorn is 4,478 meters high and is one of the highest peaks in Europe. Recently, however, the Pel Shel Institute (PSI) in Switzerland has used nano 3D printing technology to create an extremely small Matterhorn model with a scale of only a few tenths of a millimeter. PSI said the move was not just to showcase their technology, but to prove that this nano 3D printed structure can be mass-produced. This is undoubtedly an important achievement, because almost all microscopic 3D printed structures exhibit special properties that can play a significant role in industrial machinery manufacturing. “The best example of nature is the snake animal,†explains Helmut Schift, the project’s leader. “Their skin doesn’t wear out when it’s sanded, because it’s attached to it. There are high scales of a few thousandths of a millimeter, and these scales can reduce friction in one direction." “So, if you can attach similar structures to furniture, cars, and even human surfaces, you can have the same protection and greatly increase their useful life.†Schift continues, “and we are doing ultra-mini horses this time. Tehong Peak is the best proof that this structure can be manufactured in large quantities. It will open the door to further research and development." It is understood that in order to make this mini Matterhorn, PSI uses a 3D printing technology called two-photon lithography. The principle of this technology is to cure a special liquid material by laser irradiation. It is worth mentioning that this laser is very special and only has enough light intensity for curing in the focus. As a result, scientists were able to achieve precise control and create almost arbitrarily complex objects at the nanometer level. The mini mark is only 1/700 mm in diameter, but the structural features are quite realistic. For example, its apex, although only 100 nanometers in diameter, is clearly visible. PSI said that although it took a lot of time and effort to make this mini mark, it was mainly because there were too many details to be portrayed. In fact, two-photon lithography is only used once. In addition, through this finished product, they can make molds for bulk copying.
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