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Martensite steel powder used for 3D printing. Inset shows a zoomed-in view of the steel powder. Credit: Raiyan Seede/Texas A&M University College of Engineering For millennia, metallurgists have been meticulously tweaking the ingredients of steel to enhance its properties. As a result, several variants of steel exist today; but one type, called martensitic steel, stands out from its steel cousins as stronger and more cost-effective to produce. Hence, martensitic steels naturally lend themselves to applications in the aerospace, automotive and defense industries, among others, where high-strength, lightweight parts need to be manufactured without boosting the cost. However, for these and...

Amazing fellow. He actually inspired me to order a 3D printer today and try to make some of these.

At present, the situation of the new coronavirus epidemic is severe, and relevant scientific researchers across China are working hard to continuously research the virus. Recently, we have joined the project of “3D printed new coronavirus model”, and continuously communicated with medical researchers, doctors, 3D modeler, etc. We hope to help to print out a model of lung infection case, which will help doctors and scientists study it more intuitively. It’s also beneficial for doctors to explain the condition to patients and the government. At present, we have 3D printed a new model of coronavirus lung infection case, which will...

A coalition of states is suing the Trump administration over new regulations that they say could allow for the online release of blueprints for 3D-printed firearms, which make it easier for anyone to access the files at home and make a functional plastic gun with a 3D printer. Washington State Attorney General Bob Ferguson, who is leading the effort to block the administration’s rule, filed a lawsuit in the U.S. District Court for the Western District of Washington on Jan. 23, seeking an injunction to block the administration from implementing the new rules. Joining him in the federal lawsuit are...

You might call it a giant leap for 3D bioprinting: Human heart cells have been 3D printed on the International Space Station (ISS) and are making their way back to Earth this week inside a SpaceX capsule. The 3D BioFabrication Facility (BFF) was developed by Techshot Inc., a commercial operator of microgravity research and manufacturing equipment, in partnership with nScrypt, a manufacturer of industrial 3D bioprinters and electronics printers. “Our BFF has the potential to transform human healthcare in ways not previously possible,” said Techshot President and CEO John Vellinger. ”We’re laying the foundation for an entire industry in space.”...

Brazilian researchers have succesfully bioprinted tiny organoids that perform all of the human liver’s functions, Brazilian news service Agência FAPESP reports — functions including building proteins, storing vitamins and secreting bile. The researchers had to cultivate and reprogram human stem cells, and then 3D print them in layers to form tissue. While the “mini-livers” perform the functions of a liver, they’re unfortunately still a far cry from an actual full-scale liver. Not only could printed livers end a reliance on a very short supply of donor organs, they might end up being safer as well. “Another important advantage is zero...

Various glass objects created with a 3-D printer. Credit: Group for Complex Materials =================================================================== ETH researchers used a 3-D printing process to produce complex and highly porous glass objects. The basis for this is a special resin that can be cured with UV light. Producing glass objects using 3-D printing is not easy. Only a few groups of researchers around the world have attempted to produce glass using additive methods. Some have made objects by printing molten glass, but the disadvantage is that this requires extremely high temperatures and heat-resistant equipment. Others have used powdered ceramic particles that can be...

3D printed Bolt Action .223 Rifle, successfully Test Fired U.S.A. –-(Ammoland.com)- The .223 Remington cartridge is a high-intensity rifle and pistol cartridge. The SAAMI (Sporting Arms and Ammunition Manufacturers' Institute, Inc) allowable pressure level for the .223 is 55,000 psi. In most “3D printed” AR-15 type rifles, only the lower receivers are 3D printed for the platforms they are on. The lower receiver holds together the fire control system. There is little mechanical strength needed. Upper receivers have not generally been printed because they are easily available in the United States. They are considered a firearm part, like a buttstock,...

Food. What we eat, and how we grow it, will be fundamentally transformed in the next decade. Already, indoor farming is projected to be a US$40.25 billion industry by 2022, with a compound annual growth rate of 9.65 percent. Meanwhile, the food 3D printing industry is expected to grow at an even higher rate, averaging 50 percent annual growth. And converging exponential technologies—from materials science to AI-driven digital agriculture—are not slowing down. Today’s breakthroughs will soon allow our planet to boost its food production by nearly 70 percent, using a fraction of the real estate and resources, to feed 9...

Oct. 4 (UPI) -- A Colorado physicist is putting his scientific expertise to a practical purpose -- using a 3D printer to build a Lamborghini with his 11-year-old son. Erie resident Sterling Backus and his son, Xander, 11, started work on their full-size, working model of an Italian supercar -- specifically the Lamborghini Aventador -- when the boy asked his father if it was possible. "One day I said to him, hey can we build one of those?" Xander Backus told WCNC-TV. Sterling Backus said his background as a "gear head" has thus far been more helpful than his training...

Just gonna link. Fascinating if you're into AI, manufacturing, trade, future...

HANCOCK COUNTY, Miss. (WLOX) - Hancock County is soon to be home to a 3D printing rocket factory. In just a few years, the rocket company Relativity says it plans to have its manufacturing operations up and running at Stennis Space Center. The company is now hiring to find the right men and women to make it all a reality. As the future of aerospace continues to lift off in Hancock County, David Sykes and Jon Oliver say they are excited to be a part of it. Both men have returned home to Mississippi to work for Relativity Space, a...

Researchers aiming to make buildings much safer during natural disasters have revealed 3D-printed concrete that gets stronger when cracked. As the old saying goes, ‘what doesn’t kill you makes you stronger’, and when it comes to the latest concrete design, that couldn’t be closer to the truth. In a paper published to the journal Advanced Materials, a team from Purdue University in the US revealed an advanced 3D-printed concrete paste designed to actually become stronger when it starts to crack. The new material drew inspiration from nature, specifically the shell of arthropods such as lobsters and beetles that get tougher...

Scientists from Carnegie Mellon University (CMU), Pennsylvania, have used a novel 3D bioprinting method to build functional parts of the human heart. According to a study published in Science, an advanced version of Freeform Reversible Embedding of Suspended Hydrogels (FRESH) technology was developed to 3D print collagen for small blood vessels, valves, and beating ventricles. FRESH technology is patented to FluidForm, a Massachusetts-based medical startup. Professor Adam Feinberg, CTO and co-founder, FluidForm, and Principal Investigator at the Regenerative Biomaterials and Therapeutics Group, CMU, said: “We now have the ability to build constructs that recapitulate key structural, mechanical, and biological properties...

Cobod is ready to ship the world’s largest 3D construction printer to Elite for Construction & Development Co in Saudi Arabia – ordered as part of the kingdom’s Vision 2030 mandate to build 1.5 million private-sector homes over the next 10 years – after completing the dry and full testing of the printer, a machine that offers a print area of 300m2 per floor and can print three-floor tall buildings, with its Bod 2 configuration marking the largest that Cobod has produced to date. After a private house in Riyadh was 3D-printed last year, multiple public and private organisations have...

I have long suggested practical homemade guns of the future will only use 3D printing as part of the process. They will be hybrid designs using the strengths of 3D printing and simple metal components to produce practical firearms in the home or in small, unregulated shops.A prominent experimenter of homemade and small shop technology for crafting usable guns, Ivan the Troll (Internet screen name) claims to have made a breakthrough in home manufacture of rifled barrels. Ivan is part of, and often the spokesperson for, the Deterrence Dispensed project. Rifling a barrel has been done for hundreds of...

Scientists were faced with the unique challenges of creating a technique that would still work in zero gravity. So, the team invented a method of 3D printing that would work while upside down. They thickened human blood plasma, which is used to bioprint skin cells, with plant material so it could work in altered gravity. To 3D print bones, they added calcium phosphate bone cement to printed human stem cells. The calcium phosphate works as a structure-supporting material, and is absorbed by the body as the bone grows. The samples are just the first steps in a long journey to...

A young man from Zimbabwe has been convicted in London of making and possessing two guns with a 3D printer. The gun parts were discovered during a raid searching for marijuana. From independent.co.uk: A second raid of his home in February 2018 led to the discovery of further components of another 3D printed gun.Acting Detective Sergeant Jonathan Roberts, who led the investigation, said: “We know that Muswere was planning to line the printed firearms with steel tubes in order to make a barrel capable of firing.“This conviction, which I believe is the first of its kind relating to the...

Tomorrow is the day. The AR-15 will be unleashed to circulate on the Internet forever. When the day of home 3D metal printing arrives every free citizen of the world will be able to make one. This is the nightmare for oppressors - but a blessing for the liberty loving common man.

All 3D printing tends to get lumped together, but there are actually two specific styles with some pretty significant distinctions. Fused deposition modeling (FDM) is a faster, but less accurate, method achieved by layering melted plastic into a shape. Stereolithography, (SLA), sacrifices speed for precision by using an ultraviolet laser to harden a liquid resin. That trade-off limited 3D printing’s potential: You could either slowly print actually useful parts and objects, or rapidly print mostly useless trinkets. But thanks to a recent breakthrough from tag team of researchers, SLA has now become equally as fast as its counterpart. Before this...