In the US, engineers at Stanford University have developed a new technique that makes it possible to speed up the 3D printing process. This is because, instead of printing the objects in layers, they will manufacture the parts inside a suspended volume of transparent resin. See now how this will work. Keep reading!
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In conventional 3D printers it is necessary to have a support base. However, this new proposal works as if the object to be printed were “floating” inside a block of gelatin, while the laser beams are triggered from several different angles. This allows objects, which were previously very difficult and time-consuming to print, to have the ability to live this volumetric print.
In this process, in order to be able to print the objects, there are lasers that, through a lens, make it shine in a gelatinous resin that hardens when exposed to blue light. In addition, so that the resin does not harden prematurely in the process, a red light is used, in addition to nanomaterials spread throughout the resin, thus creating a blue beam only at the focal point of the laser.
With this, the new technique ends up allowing the molecules, close to each other, to create a chain energy transfer system that transforms low-energy red photons and high-energy blue light energy. This causes the laser around the resin container to produce detailed prints without needing a rigid base for support. Thus, it is possible to print any object just using different angles.
Still, the researchers intend to further refine the 3D printing techniques. So, in order to speed up the process, they intend to create a single device that can print from several points at the same time. In addition, they provide much higher resolutions for items at smaller scales.
Finally, another possibility would be to use this technique to be able to improve the efficiency of the panels photovoltaics, converting unusable low-energy light into wavelengths that solar cells can collect. In addition, nanomaterials can be used to increase the accuracy of light-triggered biological models, enabling the creation of localized treatments.
