The researchers use a very thin optical fiber for 3D printing. The image shows the fiber in comparison to a pencil lead. (IMAGE)

Universitaet Stuttgart

The researchers use a very thin optical fiber for 3D printing. The image shows the fiber in comparison to a pencil lead.

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The researchers use a very thin optical fiber for 3D printing. The image shows the fiber in comparison to a pencil lead.

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University of Stuttgart / ITO / Andrea Toulouse / Marco Wende

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