A Swiss company called UrbanAlps has developed a 3D-printed key that is almost impossible to copy. The key, which can be used for unlocking doors and other devices, was created by the firm in collaboration with the University of Zurich as part of its research into 3D printing technology.
A Swiss company called UrbanAlps has developed a 3D-printed key that is almost impossible to copy. Called the "Stealth Key", it is manufactured from titanium using a 3D printing process called selective laser melting, and takes advantage of the technique's ability to print objects from the inside out to conceal an unusually complex set of teeth behind a pair of flat, narrow ledges, which both guide the key into the lock and keep the teeth hidden from view - and thus hidden from duplication efforts, including smartphone scanning.