Archive for the ‘3D printing’ category: Page 9

May 9, 2021

New technique can print life-like organ models in minutes

Posted by in categories: 3D printing, bioengineering, biotech/medical, genetics, government

I still don’t get how there seems to be No organized effort anywhere to achieve the ability to 3D print a perfect genetic match of all organs by 2025 — 2030. You would think some government somewhere would want to work round the clock on this.

NIBIB-funded engineers at the University of Buffalo have fine-tuned the use of stereolithography for 3D printing of organ models that contain live cells. The new technique is capable of printing the models 10–50 times faster than the industry standard-;in minutes instead of hours-; a major step in the quest to create 3D-printed replacement organs.

Conventional 3D printing involves the meticulous addition of material to the 3D model with a small needle that produces fine detail but is extremely slow —taking six or seven hours to print a model of a human part, such as a hand, for instance. The lengthy process causes cellular stress and injury inhibiting the ability to seed the tissues with live, functioning cells.

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May 7, 2021

Engineering student helps federal experts solve a messy 3D printing problem

Posted by in categories: 3D printing, engineering

Tomographic 3D printing is a revolutionary technology that uses light to create three-dimensional objects. A projector beams light at a rotating vial containing photocurable resin, and within seconds the desired shape forms inside the vial. The light projections needed to solidify specific 3D regions of the polymer are calculated using tomographic imaging concepts.

The technology was first demonstrated by researchers at the University of California, Berkeley and Lawrence Livermore National Labs in 2019, and a Swiss group at École Polytechnique Fédérale de Lausanne (EPFL) in 2020. It is significantly faster than traditional 3D printing in layers, can print around existing objects, and does not require support structures.

Though incredible, the technology can get messy in the lab. The vial’s round shape makes it refract rays like a lens. To counter this, experts use a rectangular index-matching bath that provides a flat surface for rays to pass through correctly. The vial of resin must be dipped in and out of the bath for each use—creating a slimy situation.

May 6, 2021

Desktop Metal adds wood printing to its portfolio

Posted by in category: 3D printing

Desktop Metal today announced the launch of wood 3D printing tool, Forust. Founded in 2019, the company specializes in 3D printing for interior design. The company’s “non-destructive” printing methods have managed to largely fly under the radar, with minimal press coverage until now — making them a pretty ideal acquisition candidate.

In fact, the gross assets acquisition actually occurred back in October 2020, according to a filing, which pegs it at a price at $2.5 million, including $2 million in cash considerations. Since then, it seems, the two have been working together ahead of an official launch.

In a press release issued today, Desktop Metal is positioning Forust as the name of the new manufacturing process now in the company’s portfolio. The technology utilizes cellulose dust and lignin, byproducts from the wood and paper industries, respectively.

Apr 29, 2021

Download and 3D-Print 18,000 Artifacts from Art History through Scan the World

Posted by in category: 3D printing

Scan the World might be one of the only institutions where visitors are encouraged to handle the most-valued sculptures and artifacts from art history. The open-source museum hosts an impressive archive of 18000 digital scans—the eclectic collection spans artworks like the “Bust of Nefertiti,” the “Fourth Gate of Vaubam Fortress,” and Michaelangelo’s “David” in addition to other items like chimpanzee skulls—that are available for download and 3D printing in a matter of hours.

Mar 22, 2021

ICON and NASA bring lunar infrastructure closer with world’s first 3D printed rocket pad

Posted by in categories: 3D printing, space

Texas-based construction company ICON has delivered what it hails as the “world’s first” 3D printed lunar launch and landing pad to NASA, bringing its goal of creating an off-world construction system for the moon a step closer.

Working with a team of students from 10 colleges and universities across the US, ICON used its proprietary technology to 3D print a reusable landing pad using materials found on the moon. The partners recently conducted a static fire test of the rocket pad with a rocket motor at Camp Swift, a Texas Military Department location just outside of Austin.

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Feb 24, 2021

Watch robots 3D-print a Mars habitat in this concept video

Posted by in categories: 3D printing, habitats, robotics/AI, space

What would a habitat on Mars look like? Kind of like this.

Feb 19, 2021

Scientists 3D print new dragonfly-inspired ‘spiky-joints’ for treating wrist injuries

Posted by in categories: 3D printing, biotech/medical

Researchers from the German Kiel University have developed novel 3D printed ‘spiky-joints’ that provide wrist injury patients with a more flexible form of arm support.

Inspired by the natural wing micro-joints of the dragonfly, the spiky-joint features a novel interlocking mechanism that’s designed to cushion the wrist without impairing free movement. When set to its maximum rigidity, the scientists believe their device could be ideal for treating everyday strains and sprains, and preventing common hyperextension injuries in athletes.

Feb 14, 2021

US Navy Research Lab engineers 3D print functional lightweight cylindrical antenna arrays

Posted by in categories: 3D printing, military

Engineers at the US Navy Research Laboratory (NRL) have deployed a 3D printer to fabricate optimized antenna components that could be key to advancing the US Navy’s radar monitoring capabilities.

Utilizing 3D printing, the engineers were able to create cylindrical arrays at a lower cost and with reduced lead times compared to those incurred using conventional specialized equipment. The resulting parts also proved to be significantly lighter than previous iterations, potentially lending them new end-use navigational or defense applications.

“3D printing is a way to produce rapid prototypes and get through multiple design iterations very quickly, with minimal cost,” said NRL electrical engineer Anna Stumme. “The light weight of the printed parts also allows us to take technology to new applications, where the heavy weight of solid metal parts used to restrict us.”

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Jan 26, 2021

Harvard scientists 3D print swarm of ‘Bluebot’ synchronized soft robotic fish

Posted by in categories: 3D printing, internet, robotics/AI

Researchers from Harvard University have 3D printed a school of soft robotic fish that are capable of swimming in complex patterns without the aid of Wi-Fi or GPS.

Inspired by the distinctive reef-dwelling surgeonfish, the team’s ‘Bluebots’ feature four fins for precision navigation, and a system of LEDs and cameras that enable them to swarm without colliding. The self-sufficiency of the tiny bots could make them ideal for ecological monitoring applications, in areas that wouldn’t otherwise be accessible to humans.

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Jan 25, 2021

Scientists use a novel ink to 3D print bone with living cells

Posted by in categories: 3D printing, bioprinting, biotech/medical, chemistry

Scientists from UNSW Sydney have developed a ceramic-based ink that may allow surgeons in the future to 3D-print bone parts complete with living cells that could be used to repair damaged bone tissue.

Using a 3D-printer that deploys a special ink made up of calcium phosphate, the scientists developed a new technique, known as ceramic omnidirectional bioprinting in cell-suspensions (COBICS), enabling them to print -like structures that harden in a matter of minutes when placed in water.

While the idea of 3D-printing bone-mimicking structures is not new, this is the first time such material can be created at room temperature—complete with living cells—and without harsh chemicals or radiation, says Dr. Iman Roohani from UNSW’s School of Chemistry.

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