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    3D printer tagged posts

    Spinning Artificial Spider Silk into Next-Generation Medical Materials

    September 26, 2024, Categories  Biology/Biotechnology, Health/Medical

    A microscope image of several small, pyramid shaped needles with thin strands being pulled from them.
    Scientists are creating artificial spider silk by drawing strands from an array of tiny hollow needles, as shown here, similar to how arachnids do it.
    Adapted from ACS Nano 2024, DOI: 10.1021/acsnano.4c08557

    It’s almost time to dust off the Halloween decorations and adorn the house with all manner of spooky things, including the classic polyester spider webs. Scientists reporting in ACS Nano have made their own version of fake spider silk, but this one consists of proteins and heals wounds instead of haunting hallways. The artificial silk is strong enough to be woven into bandages that helped treat hoint injuries and skin lesions in mice.

    Spider silk is one of the strongest materials on Earth, technically stronger than steel for a material of its size.

    However, it’s tough to obtai...

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    Engineers send 3D Printer into Space

    July 6, 2024, Categories  Astronomy/Space

    Spaceflight feather, as viewed aboard VSS Unity on June 8, 2024. The Virgin Galactic 07 flight carried Berkeley’s SpaceCal 3D printer and four other research payloads.

    Imagine a crew of astronauts headed to Mars. About 140 million miles away from Earth, they discover their spacecraft has a cracked O-ring. But instead of relying on a dwindling cache of spare parts, what if they could simply fabricate any part they needed on demand?

    A team of Berkeley researchers, led by Ph.D. student Taylor Waddell, may have taken a giant leap toward making this option a reality. On June 8, they sent their 3D printing technology to space for the first time as part of the Virgin Galactic 07 mission.

    Their next-generation microgravity printer—dubbed SpaceCAL—spent 140 seconds in suborbital space while aboard the VSS Unity space plane...

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    This 3D Printer can Watch Itself Fabricate Objects

    November 16, 2023, Categories  Chemistry/Nanotechnology, Physics

    Rendering shows a six-legged robot, standing against a black background, in the process of being 3D-printed. Near the back of the robot, floating black spheres are assembled and then cured by a blue UV light beaming down from above. On top, cameras point down to scan the action.
    Caption: This rendering shows a robot being built layer-by-layer using the new process. The black spheres represent the material that the printer uses. The material is then cured by UV light, represented in blue. At the top of the image are the cameras that scan the procedure and adjust accordingly.
    Credits:Image: Moritz Hocher

    Computer vision enables contact-free 3D printing, letting engineers print with high-performance materials they couldn’t use before. With 3D inkjet printing systems, engineers can fabricate hybrid structures that have soft and rigid components, like robotic grippers that are strong enough to grasp heavy objects but soft enough to interact safely with humans.

    These multimaterial 3D printing systems utilize thousands of nozzles to deposit tiny droplets of resin, ...

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    New 3D Printer Shapes Objects with Rays of Light

    February 1, 2019, Categories  Chemistry/Nanotechnology, Physics, Technology/Electronics

    UC Berkeley researchers used new 3D printing technology to create a model of Rodin’s ‘The Thinker.’
    Credit: UC Berkeley photo by Stephen McNally

    The technology has potential to transform how products from prosthetics to eyeglass lenses are designed and manufactured. A new 3D printer uses light to transform gooey liquids into complex solid objects in only a matter of minutes. Nicknamed the “replicator” by the inventors – after the Star Trek device that can materialize any object on demand – the 3D-printer can create objects that are smoother, more flexible and more complex than what is possible with traditional 3D-printers...

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