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Researchers at Concordia have developed a novel method of 3D printing that uses acoustic holograms. And they say it's quicker than existing methods and capable of making more complex objects.

Now, by embedding the technique in acoustic holograms that contain cross-sectional images of a particular design, polymerization occurs much more quickly. It can create objects simultaneously rather than voxel-by-voxel.

In order to retain the fidelity of the desired image, the hologram remains stationary within the printing material. The printing platform is attached to a robotic arm, which moves it based on a pre-programmed algorithm-designed pattern that will form the completed object.

Muthukumaran Packirisamy, a professor in the Department of Mechanical, Industrial and Aerospace Engineering, led the project. He believes this can improve printing speed by up to 20 times while at the same time using less energy.

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