TECHNOLOGY

ADDITIVE (3D) MANUFACTURING: ARCHIVE

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Volumetric 3D-printing replaces 2-dimensional layering by 3D creation,reducing manufacturing time by a factor of 50 or more (Volumetric Printing - 2017-12 - Technology.org)

By using laser-generated, hologram-like 3D images flashed into a photosensitive resin, researchers at Lawrence Livermore National Laboratory and academic collaborators have built complex 3D parts in a fraction of the time of traditional layer-by-layer printing. With this process, researchers have printed beams, planes, struts at arbitrary angles, lattices and complex and uniquely curved objects in a matter of seconds.

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New method 3D-prints fully functional electronic circuits (Manufacturing/Electronics - 2017-11 - Kurzweil)

Researchers at the University of Nottingham have developed a method for rapidly 3D-printing fully functional electronic circuits such as antennas, medical devices, and solar-energy-collecting structures.
These circuits can contain both electrically conductive metallic inks and insulating polymeric inks. A UV light is used to rapidly solidify the inks.

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World-first: 3D-printed tantalum knee joint implanted in a Chinese patient (Medical/Implants 2017-11 - en.people.cn)

An 84-year-old Chinese patient recently received a knee-revision surgery with the implantation of the first 3D-printed tantalum knee joint in the world. Personalized 3D printed tantalum joints create better compactness, helping assure the initial stability of the implantation, simplify the surgery procedure, reduce the surgery time and risk of complication.

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The current state of 3D-printing food (Retail/Food Cooking - 2017-11 - TechRepublic)

3D-printed food offers intricate designs, automated cooking, mass manufacturing, and personalised meals. A 3D food printer, able to print and cook your favourite meal with a single touch of a screen, will be available in the next few years. Natural Machines launched Foodini as a B2B product in 2014, the first 3D food printer to make both savoury and sweet foods with fresh ingredients. Netherlands-based ByFlow has specialised in 3D-printing since 2009. Its portable “Focus” 3D food printer is also a B2B product, optimised for desserts. BeeHex’s Chef 3D can print a 12-inch pizza in less than five minutes, which it plans to market to high volume pizza chains.

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NYC patient receives Australian-made 3D-printed sternum and rib cage transplant (Medicine/Implants - 2017-10 - Technology.org)

A partnership between Australia’s Commonwealth Scientific and Industrial Research Organisation and medical device company Anatomics resulted in the first successful implantation of a 3D printed titanium and polymer sternal and rib cage in a New York patient. Anatomics’ ‘PoreStar’ technology, a unique porous polyethylene material provided “bone-like” architecture to facilitate tissue integration.

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Australian man receives 3D-printed shinbone in world-first surgery (Medicine/Implants - 2017-09 - The Age)

Surgeons at Brisbane’s Princess Alexandra Hospital have performed world-first surgery, transplanting a 3D printed shinbone into the leg of a man who faced amputation. The surgery ensures there is sufficient blood flow to allow the new bone to grow around the outside of the 3D bone scaffold. The scaffold was modeled at Queensland University of Technology, where it was “spun” from a polymer, and then ‘printed’ in Singapore. As the new bone grows around the scaffold, the scaffold will slowly dissolve.

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NASA 3D-prints first working rocket part composed of two metals (Space - 2017-09 - ExtremeTech)

Using an advanced laser printing method, NASA agency has produced a bi-metallic rocket igniter that works. A unique hybrid 3D printer build the part out of copper alloy and Inconel (a nickel-chromium alloy) using automated blown powder laser deposition.

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Pluripotent stem cells generated using a 3D-printer (Medicine - 2017-08 - Technology.org)

Researchers from the ARC Centre of Excellence for Electromaterials Science at the University of Wollongong have 3D-printed human-induced pluripotent stem cells (iPSCs), using a custom bio-ink. This flexible 3D tissue engineering technology enables iPSCs generated from an individual’s own body to divide after printing, and differentiate allowing the formation and replacement of any tissue type of the body. Once acceptable reliability is achieved, healthy tissue could be manufactured to replace or repair organs that were damaged due to injury or disease.

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Using additative manufacturing to print sturdy, reliable structures of unlimited size in space (Space - 2017-08 - Technology.org)

Archinaut, a NASA Technology Demonstration Mission project developing cutting-edge technology to build and assemble complex hardware and supersized structures on demand in space, achieved an unprecedented milestone this summer. They successfully printed large beam segments — similar to those used to construct a variety of space structures — and subjected both printing equipment and printed hardware deep space pressures, temperatures, and other rigors.

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Largest Laser-powder 3D Printer (Additive Manufacturing - 2017-07- Technology.org)

GE is planning to build the largest 3D printer. using powdered titanium, aluminum, and other metals. It will be capable of 3D printing objects up to 1 m3.

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The world’s first 3D-printed book (Media/BookPublishing - 2017-06 - Canadian Friends of Hebrew University)

To celebrate the 100th anniversary of the publication of Einstein’s General Theory of Relativity, the Einstein Legacy Project is collecting the visions of the 100 greatest innovators, artists, scientists and visionaries of our time in the world’s first 3D-printed book.

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3D-printing a 380 sq ft home in 8 hours (Construction/HomeBuilding - 2017-05 - Futurism)

PassivDom, a Ukrainian start-up, uses a 3D printing robot that can print the walls, roof, and floor of a 380-square-foot model home in about eight hours. When complete, the homes are autonomous and mobile, meaning they don’t need to connect to external electrical and plumbing systems.

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3D-printed ‘bionic skin’ could give robots the sense of touch (General - 2017-05 - Technology.org)

Engineering researchers at the University of Minnesota have developed a revolutionary process for 3D-printing stretchable electronic sensory devices that could give robots the ability to feel their environment by printing touch sensors directly on a hand. Michael McAlpine, a University of Minnesota mechanical engineering associate professor and lead researcher on the study. and his team made the unique sensing fabric with a one-of-a-kind 3D printer they built in the lab. The multifunctional printer has four nozzles to print the various specialized “inks” that make up the layers of the device—a base layer of silicone, top and bottom electrodes made of a conducting ink, a coil-shaped pressure sensor, and a sacrificial layer that holds the top layer in place while it sets. The supporting sacrificial layer is later washed away in the final manufacturing process. All layers of “inks” can set at room temperature. So far, the team has only printed on a model hand.

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Large metal objects can be 3D-printed in a fraction of the time needed by current technology (Manufacturing - 2017-05 - Technology.org)

Lawrence Livermore researchers use high-powered arrays of laser diodes, a Q-switched laser and a specialized laser modulator to flash print an entire layer of metal powder at a time, instead of raster scanning with a laser across each layer. Large metal objects could be printed in a fraction of the time needed for metal 3D printers on the market today, expanding possibilities for industries requiring larger metal parts, such as aerospace and automotive.

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New 3D-printing method may allow for fast, low-cost, more-flexible medical implants (Medicinr/Implants - 2017-05 - Kurzweil

University of Florida researchers have developed a method for 3D printing soft-silicone medical implants that are stronger, quicker, less expensive, more flexible, and more comfortable than the implants currently available. Create a customized part for an individual patient using the current molding technology is very expensive and take days or weeks. The 3D printing method cuts that time to hours, potentially saving lives.

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Robotic system 3D-prints entire building's basic structure (Construction/Buildings - 2017-04 - Technology.org)

Researchers at MIT have developed a robotic system (‘Digital Construction Platform’), capable of ‘printing’ the basic structure of an entire building. The system is comprised of a tracked vehicle that carries a large, industrial robotic arm, which has a smaller, precision-motion robotic arm at its end. As proof of concept, the research team built a 50′-diameter, 12′-high dome, which took less than 14 hours of “printing” time.

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Tomorrow’s office furniture will be rapidly 3D-printed in pools of goo (Manufacturing/Furniture - 2017-04 - Quartz)

The furniture company, Steelcase, partnered with MIT’s Self-Assembly Lab at its International Design Center to create a printer that uses liquefied rubber, plastic or foam, which is injected into a scalable vat of gel (algae) that holds 3D-printed objects in place until they harden & can be removed & cleaned. Test designs were produced in minutes.

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3D-printing metal parts may soon be practical and affordable (Manufacturing/Metal - 2017-04 - MIT Technology Review)

Desktop Metal plans on developing affordable 3-D printers that can make metal parts—and thus transforming much of manufacturing. It has raised nearly $100 million, and its founders include 4 prominent MIT professors, including the head of the school’s department of materials science and Emanuel Sachs, who filed one of the original patents on 3-D printing in 1989. Their vision is to establish a process of creating a digital design, printing out prototypes that could be tested and refined, and then use the digital file of the optimized version to create a commercial product or part out of the same material using a 3-D printer. The article reviews the history of 3-D printing and the current main players in the industry.

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Cellulose filament 3D-printed creating anti-microbial tweezers (Manufacturing/Medical Instruments - 2017-03 - Science News Journal)

The basis for the paper, the material that is the most used for printing on, is cellulose. Cellulose may soon also become a material that is used to do 3-D printing. New research done at MIT shows that this abundant material may potentially provide a renewable, biodegradable alternative to the polymers currently used for 3-D printing.

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3D-printed tooth for customized dental implant without drilling (Medicine/Dentistry - 2017-03 - PR Newswire)

Natural Dental Implants AG (NDI) announced a 3D- printed tooth replacement, which features an anatomically-shaped, 100% customized, titanium-zirconia tooth, and a customized cover shield designed to protect the tooth during the healing process. This offers patients an immediate, minimally invasive alternative to traditional dental implants and three-unit bridges, which can be modified to overcome anatomical limitations or to meet specific clinical requirements.

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BeeHex robot can 3D-print a custom-shaped pizza in 6 minutes (Retail/Food Cooking - 2017-03 - TheNextWeb)

BeeHex is a Silicon Valley startup that has invented Chef 3D, a bot that can 3D-print a pizza in 1 minute, usng custom shapes derived from a .jpg. It all starts with a smartphone app. After selecting the pizza’s size, dough, sauce, and cheese the bot goes to work.

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Funeral home uses 3D technologies to reconstruct faces for open casket funerals (Service/Mortuary - 2017-03 - 3DPrint)

When a facial reconstruction of a deceased is necessary for an open casket. a Chinese funeral home’s 3D printer can build a complete facial mold in half a day. It would take up to a week for undertakers and mortuary cosmetologists to complete facial reconstructions with plaster and plastic cement.

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US company 3D-printed a 400 sq.ft. circular house using concrete in 24 hours (Construction/Home Building - 2017-02 - TheNextWeb)

San Francisco-based Apis Cor 3D-printed a 400 sq.ft. house in 24 hours using a concrete mixture which it says lasts around 175 years. The house was built on-site with a crane-shaped printer at their Moscow test facility at a cost of US$10,134

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Astronauts to 3D-print medical supplies in space, thanks to Toronto doctor (Medicine-Space/Surgical Tools - 2017-01 - CTV News)

If astronauts aboard the International Space Station need a medical tool, such as a surgical instrument or a finger splint, they used to wait for a resupply mission. Now, they will use a 3D printer aboard the ISS. This ground-breaking concept was devised by Toronto doctor Julielynn Wong. In 2011, Wong founded the company 3D4MD, which uses 3D printing and low-cost technologies to supply remote locations, including space, with healthcare supplies.

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