3D printed nanoscale race car measures about the width of a human hair

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3D printed nanoscale race car.

Researchers at the Vienna University of Technology decided to print a race car on a nanoscale, using lasers. “The focal point of the laser beam is guided through the resin by movable mirrors and leaves behind a polymerized line of solid polymer, just a few hundred nanometers wide. This high resolution enables the creation of intricately structured sculptures as tiny as a grain of sand.” This is a technique they call “two-photon lithography.” (Video)

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