YouTuber and scientist Derek Muller offers a look at Relativity Space, an aerospace company 3D printing orbital rocket parts, in a new video.
Category: 3D printing – Page 42
3D printed nanomaterial could replace kevlar and steel for bulletproof armor
The Institute for Soldier Nanotechnologies (ISN), made up of the MIT, Caltech, ETH Zurich and the US Army Research Lab, has used 3D printing technology at the nanoscale to form a material that is reportedly more effective at stopping a projectile than Kevlar or steel.
Thinner than a single human hair, the material is made from tiny carbon struts that form interconnected tetrakaidecahedrons – structures with 14 faces – that are fabricated via two-photon lithography.
According to the team, the nano-architected material could potentially replace kevlar for a wide array of bulletproof protective gear used by the armed forces.
Watch Ivan Miranda 3D Print another Metal-Cutting CNC Mill
Ivan Miranda is back with a compact 3D-printed, metal-cutting CNC mill.
Study of 116 research papers finds significant daytime heating.
Habitat for Humanity Is Using 3D Printing to Build Affordable Houses
Over the last year home prices have skyrocketed (along with prices of almost everything else), leaving millions of people unable to afford to move or to change their housing situation. Mortgage lender Freddie Mac estimated last year that the US has a housing supply shortage of 3.8 million homes. It’s partly Covid-related; construction has slowed due to labor shortages, high raw material costs, and supply chain issues—but the problem predates the pandemic, as demand for homes was already outpacing supply in 2019.
Middle-and low-income families have been hit hardest by the housing shortage. In an effort to assist those in need, Habitat for Humanity launched an initiative last year to incorporate 3D printing into its construction process to cut costs. The first home was completed last month, and a family moved in just before Christmas.
Located in Williamsburg, Virginia, the house has three bedrooms and two bathrooms, and the 3D printed portion of it—that is, the exterior walls—took just 28 hours to build. “Build” in this case meant a 3D printer moved along a track in the shape of the house, putting down one layer after another of a cement mixture.
Feast Your Eyes Upon the World’s First 3D-Printed Steel Bridge
It looks whimsical, but it could be a blueprint for fixing our woeful infrastructure in the U.S.
After four long years of planning, the world’s first 3D-printed steel bridge debuted in Amsterdam last month. If it stands up to the elements, the bridge could be a blueprint for fixing our own structurally deficient infrastructure in the U.S.—and we sorely need the help.
Dutch Company MX3D built the almost 40-foot-long bridge for pedestrians and cyclists to cross the city’s Oudezijds Achterburgwal canal. It relied on four robots, fit with welding torches, to 3D-print the structure. To do it, the machines laid out 10,000 pounds of steel, heated to 2,732 degrees Fahrenheit, in an intricate layering process. The result? An award-winning design, pushing the boundaries of what steel can do.
Researchers successful in healing deep wounds using 3D bioprinted skin
Researchers from the University of Birmingham and the University of Huddersfield, UK, have developed a new 3D bioprinting technique that can be used to treat chronic wounds.
Named Suspended Layer Additive Manufacturing (SLAM), the approach enables the printing of a novel biomaterial that accurately simulates the structure of mammalian skin.
In fact, according to the researchers, the biomaterial is the first of its kind to simulate all three of the major layers found in skin – the hypodermis, the dermis, and the epidermis – making it a unique tri-layered skin equivalent. Early experiments suggest that the 3D bioprinted skin can be placed at the site of a wound to induce healing, reducing scar tissue in the process.
World’s First 3D-Printed Prosthetic Eye
TALLAHASSEE, Florida — A London patient, Steve Verze, became the first to use a 3D-printed prosthetic eye in November 2021. Its advancements in aesthetics, durability and production process allude to an auspicious future for prosthetics. Yet, developing countries struggle regarding prosthetic accessibility and affordability. Losing a limb or organ in poverty is extremely impactful since access to prosthetic devices or assistance is rare.
A 3D Difference
Steve Verze made history by replacing his acrylic eye with a 3D-printed prosthetic. Since he was 20 years old, he has worn a prosthetic and expressed that he was always self-conscious wearing it. The difference between his previous eye and the 3D counterpart is wider than expected. Traditional prosthetic eyes take six weeks to finish due to hand painting acrylic. The 3D printing prosthetic takes two to three weeks in comparison. Acrylic eyes require an anesthetic for children due to the challenge of molding them to the eye socket. The 3D eye only uses digital scans and “is a true biomimetic and a more realistic prosthetic, with clearer definition and a real depth to the pupil.” The world’s first 3D-printed prosthetic eye shows advancements that expand the possibilities of prosthetics forever.
3D printing’s next act: big metal objects
A new metal 3D printing technology could revolutionize the way large industrial products like planes and cars are made, reducing the cost and carbon footprint of mass manufacturing.
Why it matters: 3D printing — also called additive manufacturing — has been used since the 1980s to make small plastic parts and prototypes. Metal printing is newer, and the challenge has been figuring out how to make things like large car parts faster and cheaper than traditional methods.
Two Self-Driving Shuttle Companies Fail In One Week. What Does It Bode?
Last week saw an announcement that Optimus Ride, an autonomous shuttle company in Boston was purchased in an acqui-hire by Magna, the Ontario based Tier One Automotive company. In an acqui-hire, the company has generally failed, but a buyer pays to pick up the assets and to hire the team, which took time to create. Usually it’s only enough to reward the preferred investors, the team gets options in their new employer.
Optimus Ride built a shuttle on top of the GEM 6-seater electric shuttle platform, adding sensors and their autonomy tools. It evolved out of MIT.
Also announced as shutting its doors was Local Motors, maker of the Olli shuttle. Local Motors began with a focus on 3D printing to make smaller volume vehicles. The started with the Rally Fighter, a vehicle that was crowd designed after contests. Over time, founder Jay Rogers believed that 3D printing could bring a vehicle to production faster and at lower cost than conventional methods than conventional methods, and entered the Shuttle market, partnering with various partners to make them autonomous. Recently, we reported how an Olli shuttle in Whitby, Ontario had a crash resulting in serious injuries. Early reports suggested it was in autonomous mode, but it was later revealed it was being manually driven at the time. That made it mostly a non-story, but the real story of Olli did not go so well, either.
Full Story:
Optimus Ride and Olli, two self-driving shuttle companies failed last week. The self-driving shuttle may not be that good an idea right now, but it has the chance to be the core future of public transportation.