[ By Steph in Architecture & Design & Gadgets & Geek Art & Technology & Futurism. ]

Castle in a Grain of Sand: Tiny Nanoscale 3D Printing

It’s a perfect replica of St. Stephen’s Cathedral in Vienna, complete with each tiny peak and each window. But to the naked eye, this object would look like no more than a grain of sand. The cathedral and other creations like it are among the smallest 3D objects ever to be printed, produced precisely at the nanoscale.

Castle in a Grain of Sand: Tiny Nanoscale 3D Printing

Castle in a Grain of Sand: Tiny Nanoscale 3D Printing

Researchers at the Vienna University of Technology have perfected the process of 3D printing on an amazingly tiny scale. Using technology called “two-photon lithography”, the researchers created a high-precision 3D printer that can print three-dimensional objects both smaller and faster than ever before.

The printer uses movable mirrors to guide a laser beam through liquid resin; the laser hardens the resin into shape. The lines of resin created by the laser are no more than a few hundred nanometers wide. The mirrors move continuously throughout the printing process to create high-resolution objects at a record-breaking speed.

Castle in a Grain of Sand: Tiny Nanoscale 3D Printing

Castle in a Grain of Sand: Tiny Nanoscale 3D Printing

In addition to the printer itself and the technology required to develop it, innovations in the chemistry of the resin play a role in this achievement. “The resin contains molecules, which are activated by the laser light. They induce a chain reaction in other components of the resin, so-called monomers, and turn them into a solid”, says researcher Jan Torgersen.


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Castle in a Grain of Sand: Tiny Nanoscale 3D Printing
Castle in a Grain of Sand: Tiny Nanoscale 3D Printing
Castle in a Grain of Sand: Tiny Nanoscale 3D Printing


Castle in a Grain of Sand: Tiny Nanoscale 3D Printing
Castle in a Grain of Sand: Tiny Nanoscale 3D Printing
Castle in a Grain of Sand: Tiny Nanoscale 3D Printing


[ By Steph in Architecture & Design & Gadgets & Geek Art & Technology & Futurism. ]

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Castle in a Grain of Sand: Tiny Nanoscale 3D Printing

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1 Response » to “Castle in a Grain of Sand: Tiny Nanoscale 3D Printing”

  1. Pasty Gordey says:

    If you give them a reason they will find something to arrest you for. They can make a criminal out of anyone….

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