Researchers at the Vienna University of Technology improved 3D-printing technology using two-photon lithography, they developed a process by which one can generate three-dimensional objects, they are several orders of magnitude faster and smaller than the existing counterparts. In the process of 3D printing using liquid resin that hardens in place, which focuses the laser beam. Coordination of the beam by means of movable mirrors, which allows to produce parts from a solid polymer with up to hundreds of nanometers.
1. Micro-model race car.
2. Micro-model of the Tower Bridge in London.
3. Micro-model of the Cathedral of St. Stephen’s in Vienna.
4. This new solution allows you to create complex structured sculptures not bigger than grains of sand. “Until now this technique has been used quite slowly,” said by Prof. Jürgen Stampfl (Jürgen Stampfl) from the Institute of Materials Science and Technology of Vienna University of Technology. “Previously, the print speed is measured in millimeters per second – our device can operate at speeds of up to five meters per second.”
6. A total of 4 minutes, it can generate 100 layers, consisting of 200 lines each, at a speed of five meters of solidified polymer in a second. In the two-photon lithography, it is actually a world record.
7. Scientists in Vienna are currently developing a biocompatible resin compositions for medical use. For example, 3D – the printer can be used to create special “scaffolding” to ensure the proper information of biological tissues for growth and reproduction of cells, as well as for other biomedical technologies and nanotechnology.