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Materials Help Expand Volumetric 3D Printing


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A ring constructed by a three-dimensional printer from a class of materials known as thiol-ene resins.

Lawrence Livermore National Laboratory researchers were able to three-dimensionally print tough and strong, as well as stretchable and flexible, objects nearly instantly from a class of materials known as thiol-ene resins.

Credit: Maxim Shusteff/LLNL

A volumetric three-dimensional (3D) printing method developed by researchers at Lawrence Livermore National Laboratory (LLNL) that can print objects almost instantly takes advantage of a new class of materials called thiol-ene resins.

These resins may be used with LLNL's volume additive manufacturing (VAM) techniques, including Computed Axial Lithography (CAL), which projects beams of 3D-patterned light into a vial of resin that spins as the light cures the liquid resin into a solid.

Thiol-ene resins can create strong, stretchable, and flexible objects, as opposed to the brittle and breakable objects created using acrylate-based resins in the CAL process.

LLNL's Maxim Shusteff said, "These results are a key step toward our vision of using the VAM paradigm to significantly expand the types of materials that can be used in light-driven 3D printing."

From Lawrence Livermore National Laboratory
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Abstracts Copyright © 2020 SmithBucklin, Washington, DC, USA


 

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