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In a few years, you might be able to 3-D print right in the palm of your hand.
A new 3-D printer that’s mere millimeters in size could offer a new way to produce customizable objects, scientists report June 6 in Light: Science & Applications. Rather than relying on a symphony of moving parts — like a bulky tabletop 3-D printer — the device uses antennas on a tiny chip to guide a light beam into a well of specialized resin above the chip. When exposed to the visible light, the resin cures into hard, customizable shapes in just seconds.
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