{"id":6309,"date":"2017-12-20T00:01:58","date_gmt":"2017-12-20T00:01:58","guid":{"rendered":"https:\/\/www.3dnatives.com\/en\/?p=6309"},"modified":"2019-09-03T09:11:47","modified_gmt":"2019-09-03T09:11:47","slug":"3d-printing-holograms-221220174","status":"publish","type":"post","link":"https:\/\/www.3dnatives.com\/en\/3d-printing-holograms-221220174\/","title":{"rendered":"3D Printing with Holograms to Speed Up the Process"},"content":{"rendered":"

A study conducted by the Lawrence Livermore National Laboratory (LLNL) in collaboration with MIT, the University of Rochester and UC Berkley, demonstrates how the use of holograms in the 3D printing process can dramatically speed it up. 3D volumetric printing would be more effective than light-based methods.\u00a0According to the researchers, the power of this process lies in the abandonment of the traditional “layer-by-layer” approach.<\/p>\n

Hologram 3D printing had already made\u00a0headlines\u00a0with Daqri,\u00a0who developed hologram-based 3D printing technology.\u00a0It uses lasers to transform a photosensitive monomer into a solid plastic<\/a>.\u00a0As a continuation of this work, the LLNL conducted a study on this new process of additive manufacturing<\/a> also called volumetric 3D printing.<\/p>\n

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Daqri’s 3D printing with holograms.<\/p><\/div>\n

3D Printing with Holograms<\/h3>\n

3D volumetric printing works by directing multiple light beams at a central point in a large tank of photosensitive resin. The rays alone are not strong enough to 3D print resin<\/a>. However, when they are combined on a single point, they generate enough energy to solidify the material and create the previously chosen shape, without going through the deposition of successive layers.\u00a0In our case, the researchers used three lasers to make their parts.<\/p>

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One of LLNL’s engineers, Chris Spadaccini, explains, “This is a good proof of what additive manufacturing could become.\u00a0The potential impact on print throughput could be significant and if we can develop it properly, we can also get a lot of complexity<\/em>.” This process is much faster than traditional 3D printing technologies as it does not go through the deposition of successive layers.\u00a0By eliminating this process, volumetric 3D printing avoids problems associated with printing technologies such as streaks.<\/p>\n

The research team has already used this method to print complex shapes with meshes and curves.\u00a0This technology makes it possible to create curved structures more easily and without the aid of a support.\u00a0This technology could even be beneficial for use in space as it would work in weightlessness.<\/p>\n

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A piece 3D printed with holograms.<\/p><\/div>\n

The Limits of Volumetric 3D Printing<\/h3>\n

The method is still in its infancy: the researchers explain that there are still some limitations in terms of possible geometries, resolution and scale of the finished parts.\u00a0Extremely complex structures, such as highly detailed jewelry<\/a>, would require more lasers, implying greater management of heat and exposure.\u00a0In addition, they explain having to improve the properties of the developed resin.\u00a0In any case, they hope that this new technology can push other researchers to test different materials.\u00a0Find the\u00a0whole study here<\/a>\u00a0and more information on the process in the video below:<\/p>\n

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