The 3D printing of certain items could soon get a lot faster, simpler and more eco-friendly. That's because scientists have developed a new 3D printing ink which is easily extruded as a liquid, then solidifies on contact with a saltwater solution.

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Scientists have developed a new "ink" that allows objects to be 3D-printed out of wood. The material could reduce the amount of wood that gets wasted in the manufacturing of various products, plus it could utilize existing wood waste.

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Researchers have come up with a 3D printing method using liquid metal that's claimed to produce structures at least 10 times faster than existing metal additive manufacturing processes, though it does so at the expense of fine detail.

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In order to keep surgeries minimally invasive, it would be great if implants could be injected into the body in liquid form, then solidified once in place. Well, a new ultrasound-based 3D printing process may one day make that very thing possible.

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If you can 3D-scan it, you can 3D-print it – and Matter and Form has announced a super-versatile new way to do so. The Three system creates photorealistic, high-detail, full-color 3D scans of objects from coins to cars, and potentially beyond.

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Last year, Anker breezed into the desktop 3D printing space with the AnkerMake M5, launching on Kickstarter to test the market and fund production. Now the company has announced a more affordable follow up called the M5C.

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Scientists have created the world’s smallest wine glass, narrower than a human hair. Made out of actual glass, the model is a test run of a new 3D-printing process that could help make nanoscale glass components for electronic and optical devices.

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3D concrete printing (3DCP) technology is already known to offer a more efficient approach to constructing buildings. A new type of 3DCP is said to be better, resulting in walls that are a claimed 72% lighter than their conventional counterparts.

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Arizona company Rosotics says it's ready to revolutionize large-scale 3D metal printing, with a new "rapid induction printing" approach that can print parts of enormous size – with radical advantages in speed, cost, safety and energy efficiency.

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