This 3-D printer can fit in the palm of your hand

The proof-of-concept device is a step toward making the technology more portable

A rainbow-hued strip with black markings on it sits atop a U.S. quarter

This prototype 3-D printer is roughly as long as a quarter is wide. Eventually, researchers hope the printer can be used to produce objects useful for daily life.

S. Corsetti et al/Light: Science & Applications 2024

In a few years, you might be able to 3-D print right in the palm of your hand.

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