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DNA Biosensing with 3D Printing https://ift.tt/2T5mHHq 3D printing is useful in how it makes tools for us humans. Tools are the gateway to innovation within our world. 3D Printing helps different industries because of cost reductions and material waste. We are going to look into a specific industry application and how it is leveraging 3D printing technology. A biosensor is an analytical device, used for the detection of a chemical substance, that combines a biological component with a physicochemical detector. The sensitive biological element, e.g. tissue, microorganisms, organelles, cell receptors, enzymes, antibodies, nucleic acids, etc., is a biologically derived material or biomimetic component that interacts, binds, or recognizes with the analyte under study. We are particularly interested in DNA biosensors. DNA biosensors can theoretically be used for medical diagnostics, forensic science, agriculture, or even environmental clean-up efforts. No external monitoring is needed for DNA-based sensing devices. Typically these machines were very large and expensive devices that were only for research purposes. DNA biosensors are now becoming complicated mini-machines—consisting of sensing elements, micro lasers, and a signal generator. This means that DIY construction of such a device will lead to better public health implications for makers. DNA biosensors function on the fact that two strands of DNA stick to each other through chemical attractive forces. Only an exact fit—that is, two strands that match up at every nucleotide position leads to a fluorescent signal that is then transmitted to a signal generator. The field of biosensors has developed extensively and now has become one of the essential state of the art technologies in laboratory medicine. The idea of biosensors has revolutionized the concept of self-testing by the patient in many clinical conditions. Quick diagnosis and early prevention are critical for the control of disease status. Some commercial biosensors on the market include the following: So why are 3D printers important in the field of biosensing? In terms of tool creation, it is vital for biotech companies and researchers to build new prototypes and mini machines for biosensing. In order to rapidly make advances within this type of technology, 3D printing is used to cut down costs, as well as iterate designs. This helps to streamline innovation and develop new methods to reduce the production of biosensors. Researchers currently are working on the potential of adopting 3D printing technology for electrochemical DNA biosensing applications. Some groups have created helical-shaped stainless steel electrodes that are vital for biosensing. An electrode is an electrical conductor used to make contact with a nonmetallic part of a circuit (e.g. a semiconductor, an electrolyte, a vacuum or air). This connection is vital for signal processing and seeing whether or not DNA can be identified within a biosensor. These can be designed and 3D printed through the use of a selective laser melting (SLM) method, which fuses a fine metal powder on a printing stage with a high intensity laser beam, in a layer-by-layer manner. SLM is also called Laser Powder Bed Fusion and is similar to DMLS or Direct Metal Laser Sintering while commonly being called metal 3D printing. It is important to use metal printing for a biosensor because specific chemical and electrical reactions occur with the use of different metal groups. The future of biotech is oriented towards how devices can be made quickly and cheaply. With 3D printing, a maker who is curious has a lot of tools and the ability to make devices efficiently. This leads to projects and innovations when one is open to iterating and experimenting. More importantly one should learn how to create their own devices. Health care as a whole is leaning toward preventative measures. It is important to have tools that can diagnose complications that we are not aware of. It also is important due to the fact that healthcare will be more expensive as time continues. For underdeveloped nations, having access to open source solutions to biotechnology projects can lead to better maintenance of their citizens and their general health. The future of health is reliant on different technologies, and 3D printing is a very essential part of the equation. With 3D printing, we are able to create tools that were previously only accessible to industry experts. Now a common consumer with an interest can create medical tools such as a biosensor to assist them in their own general health. What will we as makers do to help that? Printing via 3DPrint.com | The Voice of 3D Printing / Additive Manufacturing https://3dprint.com February 27, 2019 at 02:59AM
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Researchers Discuss Health Hazards of 3D Printed Implants & Biomaterials https://ift.tt/2VmWIYB As 3D printing, additive manufacturing, and bioprinting have offered substantial new avenues for innovation in the medical field and so many other industries, there are bound to be some downsides. And while obstacles in technique often present themselves, hazards regarding safety, emissions, and toxins are often the topic of study. But what about hazards for patients receiving 3D printed implants internally? Researchers Nihal Engin Vrana, Amir Ghaemmaghami, and Pinar Zorlutuna explored this question and more in their editorial ‘Adverse Reactions to Biomaterials: State of the Art in Biomaterial Risk Assessment, Immunomodulation and in vitro Models for Biomaterial Testing,’ while also listing a number of relevant articles on the topic . A number of adverse reactions can occur when a 3D printed device is implanted into the body, to include:
The articles they cite as having relevance to this subject overall include topics on skin substitutes, haemocompatibility of biomaterials and the analyses of interactions of biomaterials with human blood, liver- and lung-on-a-chip systems, and an overview of biomaterials. 3D printing has without a doubt had a major impact in healthcare, spanning nearly every aspect of what is undeniably a vast and ever-growing realm. 3D printed medical models are being used more because they have multi-faceted advantages, from helping in diagnosis and treatment to also allowing for educational advances to explain to patients and their families what is happening during an illness or consequent surgery, as well as giving medical students the opportunity to learn about conditions, and train in surgical procedures. Surgeons may also use 3D printed models in the operating room. Other devices such as 3D printed prostheses have become extremely popular around the world and in developing countries as they can be created so quickly and economically and easily distributed. Bioprinting and biomaterials, however, are a much more serious progression into 3D printing and medicine as the eventual goal, the holy grail for many, is the fabrication of human organs—thus eliminating donor waiting lists, donor rejection in the patient, and a list of other issues that may in some cases mean a shortened life span. In considering the benefits and the growing list of concerns, the research team suggests improving on risk assessment through in vitro testing, allowing for an internal view of how the human body is interacting with 3D printed implants after they are inserted. They also suggest the use of innovative technology that could act as a controlling mechanism for the 3D printed implant once it is in use within the body.
Bioprinting and the study of biomaterials continues to expand today, from interests in regenerative medicine and 4D printing to progressive bioinks and materials like microgels. What do you think of this news? Let us know your thoughts! Join the discussion of this and other 3D printing topics at 3DPrintBoard.com. [Source: Adverse Reactions to Biomaterials: State of the Art in Biomaterial Risk Assessment, Immunomodulation and in vitro Models for Biomaterial Testing,’] Printing via 3DPrint.com | The Voice of 3D Printing / Additive Manufacturing https://3dprint.com February 27, 2019 at 01:42AM Sichuan University Researchers Examine Four Levels of 3D Printed PCL Scaffolds https://ift.tt/2Su0xcN 3D printing in medicine and in structures like scaffolding has become almost commonplace today, but scientists continue to refine the processes to help patients with a variety of conditions, many of which are life threatening. A team from the Research Center for Nano-Biomaterials at Sichuan University has recently decided to explore an important and relevant topic in ‘Modification of 3D printed PCL scaffolds by PVAc and HA to enhance cytocompatibility and osteogenesis.’ Four groups of scaffolds were 3D printed in the study, in the following materials:
The team studied their morphologies, mechanical properties, and biological characteristics, with two new types of bone formation patterns discovered during the study—one formed on the grid matrix and another as new bone remolded into circles after previously being formed in the middle of the structure. In the introduction to their study, the researchers discuss the potential 3D printing offers for material scientists and orthopedic surgeons, as scaffolds can be made layer by layer in accordance with available and personalized CT data exhibiting bone defects.
PCL has been approved by the FDA and offers a suitable material for 3D printing scaffolds due to high crystallinity and a low melting point. The research team points out that it also offers ‘superior workability and machinability’ when printing at normal temperatures. The materials are already in use for a wide range of medical needs, including cranial repairs, screws to fix bone fractures, systems with sustained-release mechanisms, and already for use as a 3D printing matrix for hydroxyapatite scaffolds. PCL is also a bioabsorbable material that is deemed exceptionally safe. With all the good of course, comes some ‘bad,’ and the team of scientists discusses the shortcomings they uncovered with PCL and hydroxyapatite (HA):
The team goes on to point out the need for the following features in scaffolds:
3D printing is considered suitable for all these requirements because it allows for fabrication of the interconnected pores for bone regeneration. The four scaffold groups were 3D printed on the 3D Bioprinter V2.0 (manufactured by Hangzhou Regenovo Biotechnology Co., Ltd, China), all on the same settings:
The results showed that all scaffolds had similar porosity in the range of 74.1 percent to 76.1 percent, but there were differences in mechanical properties:
Overall, the scaffolds were successful, although the PCL/PVAc/HA scaffold showed more favorable characteristics during in vitro cell culture experiment and in vivo bone formation.
Find out more about this study here. And if you are interested in finding out more about 3D printed scaffoldings, follow some of our other stories on topics like thermoresponsive nanohybrid scaffolds, lattices made in 3D printed rectangle form, and even neural scaffolds. What do you think of this news? Let us know your thoughts! Join the discussion of this and other 3D printing topics at 3DPrintBoard.com. [Source / Images: ‘ Modification of 3D printed PCL scaffolds by PVAc and HA to enhance cytocompatibility and osteogenesis’] Printing via 3DPrint.com | The Voice of 3D Printing / Additive Manufacturing https://3dprint.com February 27, 2019 at 12:45AM
UPS makes bid for former Boeing C-17 manufacturing site • Long Beach Post
https://ift.tt/2GMh22E United Parcel Service has announced its bid for a regional service hub at the former Boeing C-17 manufacturing site, in a proposal that could bring 2,500 jobs to Long Beach, a UPS spokesman said Monday. The 93-acre site adjacent to Long Beach Airport was once the production home for Boeing’s C-17 Globemaster III cargo plane before the aerospace giant shuttered the facility in 2015. The massive complex, which includes a 1.1 million-square-foot assembly building, was listed for sale in November. UPS spokesman Bruce MacRae on Monday said the shipping giant is eyeing the Boeing property for a regional hub that would service the Long Beach area while also utilizing the nearby airport. The Atlanta-based company expects to invest around $300 million in the new facility while adding more than 2,500 jobs, he said. “We’re very exited for this and we hope it happens,” he said. MacRae said the company is one of several bidders for the site. The property does not have a listed asking price and details of UPS’s bid are confidential, he added. MacRae said UPS plans to use the existing 1.1 million-square-foot assembly building, which would allow it to begin operations within two years. “In our proposal, the facility stays up, so we don’t have to tear down one of our city’s iconic buildings,” said MacRae, a Long Beach native. The complex could also serve as a regional training center for drivers and could employ students at nearby Cal State Long Beach and Long Beach City College, he said. “There’s so much we could do with this,” he said. “The possibilities are endless.” Last year, UPS opened or expanded 22 new facilities as part of a multi-year plan to grow its logistics network. MacRae said the company, founded in 1907, is booming in the age of online shopping. “Life is good for all delivery companies right now,” he said. The former C-17 site is part of the city’s Globemaster Corridor Specific Plan to bring new businesses and quality jobs back to the site and surrounding corridors. The city plan, funded in part with a $3.9 million grant from U.S. Department of Defense Office of Economic Adjustment, would create a “twenty-first century employment district” that would revitalize Cherry Avenue as a unifying corridor. Free news isn’t cheap.We believe that everyone should have access to important local news, for free. However, it costs money to keep a local news organization like this one—independently owned and operated here in Long Beach, without the backing of any national corporation—alive. If independent local news is important to you, please consider supporting us with a monthly or one-time contribution. Read more. Printing and Mailing News via Long Beach Post February 26, 2019 at 03:31PM
Four big shipping trends online retailers need to know about – Econsultancy
https://ift.tt/2Eye9jG For online retailers, getting products that their customers have purchased from Point A to Point B is an increasingly important part of the customer experience, and thus a critical success factor. Because of this, developments and trends in shipping are must-follows for retailers. Here are four that they need to know about. The viability of shipping bulky itemsOnline retail’s reach continues to grow and one of the reasons for that is that the number of types of products that can be shipped is growing. Historically, major couriers like FedEx and UPS had allowed trucking companies to dominate the market for the delivery of bulky items. But consumer willingness to purchase large items online, such as furniture and appliances, has led couriers to take a second look at this segment of the shipping market. Last month, for instance, FedEx announced that it was running a pilot in six US markets. As Bloomberg explained, under the pilot, FedEx is delivering large, bulky items to homes and businesses, and in some cases, even offering “white glove” services in which installation and/or assembly is provided. And this month, another US shipping player, Ryder, announced a new fulfillment solution intended for online retailers that need to deliver small to large consumer goods. According to the company, “a globally recognized small appliance manufacturer” tested the solution and achieved 99.9% on-time and in-full shipping accuracy during Black Friday and Cyber Monday. Retailers selling bulky items, as well as retailers that have the potential to sell them, will want to pay close attention to the offerings that are emerging in this space, as they could help them expand their business. The specter of further USPS rate hikesIn late January, new United States Postal Service (USPS) postal rates took effect. In addition to price increases, there were some changes to the way shipments are priced. For example, First Class Package Service moved to zone-based pricing, which can in some cases produce increased costs. The increases and changes appear to have had a fairly limited impact so far due to the fact that couriers such as FedEx and UPS also increased their prices, but an additional change to the dimension factor that goes into effect in June could also increase prices for some retailers. Additionally, and more worryingly for online retailers, US President Donald Trump, who has publicly battled with Amazon CEO Jeff Bezos, has repeatedly suggested that the USPS isn’t charging Amazon enough for shipping and in April, signed an executive order creating a task force to scrutinize the USPS. While it remains to be seen whether President Trump’s rhetoric will eventually result in the USPS substantially changing the way it charges online retailers for its services, the possibility is one of the reasons that shipping strategy, including boxing (see below), will only grow in importance. In the UK, a report by the Housing, Communities and Local Government Committee last week suggests higher taxes on online retailers, including, potentially, “green taxes” on shipping and packaging. Such taxes, depending on how they’re structured, would likely have a big impact on ecommerce players in the UK. Extended pick-up hours for shippingConsumer expectations for online retailers have never been higher, especially as they relate to delivery speed, and a lot of that has to do with Amazon. More than 100m households subscribe to Amazon Prime, which offers free two-day shipping. To support Prime, Amazon has been building up its own transportation network – which even includes cargo planes – to help it fulfill orders more quickly and cost-effectively. This creates significant challenges for other retailers. But help appears to be on the way. To help retailers not named Amazon compete with online retail’s 800-pound gorilla, FedEx recently announced a new late-night shipping program that allows retailers to have packages picked up late. According to Brie Carere, FedEx’s CMO, roughly 50% of online purchases are made after 4 p.m. Historically, retailers have not been able to offer next-day delivery for orders placed in the late afternoon and evening, but FedEx’s new program will process pick-ups as late as 2 a.m., giving retailers the ability to offer their customers same and/or next-day delivery on orders they otherwise wouldn’t have been able to. In some cases, that ability could make or break a sale, so retailers will want to pay close attention to offerings like FedEx’s to ensure that their cut-off times for same and next-day delivery are as accommodating as possible. Boxing strategyWhile many retailers focus on the aesthetics of their packaging, given the importance of shipping, industry experts are now suggesting that prioritizing form over function is bad form. To mitigate the aforementioned increases in shipping costs, many retailers are getting smarter about how they prepare their shipments. In short, more typically demands less. Eliminating empty, unnecessary space in packaging, and otherwise optimizing how packages are composed to ensure they are being shipped at the lowest cost possible, is an imperative. In addition, as Ben Conwell, the MD of Cushman & Wakefield’s eCommerce Advisory Group, pointed out, the average package is dropped or subjected to “rough movements” 17 times during transit. Obviously, getting a package from Point A to Point B quickly is of limited value to customers if the contents arrive damaged. So boxing strategy should also take into consideration the protection afforded to the items being shipped. Printing and Mailing News via Econsultancy February 26, 2019 at 03:30PM Singapore: Researchers Test Potential of High Entropy Alloys in EBM Metal 3D Printing https://ift.tt/2U8FM85 Metal 3D printing is becoming invaluable for many manufacturers today worldwide, and the research regarding processes and materials continues as researchers from both Singapore Institute of Manufacturing Technology and Nanyang Technological University explore metal powders being used in electron beam melting (EBM) technology today in ‘Additively manufactured CoCrFeNiMn high-entropy alloy via pre-alloyed powder.’ Most studies regarding serious manufacturing practices and their interest in 3D printing with metal center around the best ways to produce strong, complex geometries. Here, the authors review whether CoCrFeNiMn high entropy alloy (HEA) parts produced through EBM—very similar to the popular selective laser sintering (SLS) process—is a realistic improvement over conventional casting techniques. CoCrFeNiMn is known as an equiatomic alloy powder made through vacuum induction via atomization with argon gas. As a single face-centered-cubic (FCC) crystal structure, CoCrFeNiMn has been the focus of a wide variety of research throughout the years due to:
The scientists point out that while HEAS like CoCrFeNiMn perform well in cryogenic temperatures, melting, casting, and mechanical alloying are the ‘dominant preparation methods,’ often leading to issues with both voids and porosity. Powder bed fusion additive manufacturing (PBFAM) offers potential for fabricated HEAs due to the following features:
EBM relies on high energy preheating up to 1100 °C, offers reduced stress on reactive parts, and has been known to be successful in production of HEA parts previously. Along with evaluating CoCrFeNiMn in terms of its microstructure and mechanical properties, researchers were able to produce it through gas atomization for this study, producing further analysis in powder flow, particle size, density, defect, printability, and more. For better ease in 3D printing, the atomized powder was separated into four different categories: ≤25 μm, 25–45 μm, 45–105 μm and 105–300 μm. Respectively, this allows for spark plasma sintering/injection molding, selective laser melting (SLM), EBM, and laser-aided AM. Flowability is one of the important features in PBFAM, and can be determined in different ways, but for this study was evaluated through the Hall flowmeter funnel and pronounced excellent. Particle size was evaluated, with good printability proven, and parts were inspected for defects based on Archimedes principle and OM observation. Further, microhardness was evaluated as follows:
Chemical composition analysis revealed ‘spherical morphology’ and only a few irregular particles, with all particles overall created as solidifying droplets collided in the ‘turbulent flow’ of atomization.
The scientists agree that while previous processes may have led to obstacles in using HEA powder, gas optimization makes such materials a definite consideration for mass production, stating that the powders offered all the following:
The researchers do point out, however, that there could be safety issues due to the ‘high density of satellites,’ although it does not seem to affect the EBM printing process. Porosity is a concern however, and the researchers tentatively suggest the hot isostatic press process for elimination of such issues in additive manufacturing, but it is costly and can be limiting for most applications.
Ultimately, the team concluded that all important features of the process studied here deem it suitable for PBFAM technology and new materials, further stating:
As 3D printing with metal in a variety of different methods begins to infiltrate industries focused on intense manufacturing processes, the study of the materials and powders that accompany this technology continues to grow, as exemplified in the automobile industry, aerospace, military and ammunitions endeavors—and far more. Find out more about the PBFAM process and the use of new materials in 3D printing here. What do you think of this news? Let us know your thoughts! Join the discussion of this and other 3D printing topics at 3DPrintBoard.com. [Source / Images: ‘ Additively manufactured CoCrFeNiMn high-entropy alloy via pre-alloyed powder’]
Printing via 3DPrint.com | The Voice of 3D Printing / Additive Manufacturing https://3dprint.com February 26, 2019 at 01:27PM Creatz3D Case Study Shows How 3D Printing Improved Design of Multi-Axis Suction EOAT Robot2/26/2019 Creatz3D Case Study Shows How 3D Printing Improved Design of Multi-Axis Suction EOAT Robot https://ift.tt/2SoJxVm 3D printing solutions provider Creatz3D, which operates in Singapore and Vietnam, was founded in 2012 and works to bring awareness to the fact that 3D printing adoption needs to be accelerated in order for manufacturers to remain competitive in today’s landscape. The company works with educational and government facilities, in addition to commercial companies, to drive this acceleration, and recently completed a 3D printing case study with Universal Robots (UR) that led to major time and cost savings. The Danish company, which makes user-friendly industrial robots and has offices in the US, Latin America, Europe, and Asia, implemented the technology for its Multi-Axis Suction End-of-Arm Tooling (EOAT), which can be used in multiple industries to pick up multiple parts through independent vacuum channels. As the current workforce starts to age out, and their expertise and experience go with them, it’s more important than ever to adopt new design paradigms in the manufacturing world, such as 3D printing and automation. While in the past robots may have been considered too dangerous to use on the factory floor, thanks to the advancements introduced by Industry 4.0, smaller collaborative robots, or cobots, can safely work next to humans in manufacturing settings. In fact, using 3D printing to make cobots means they can be more lightweight, which also makes them more efficient. In warehouse settings, EOATs make sure that proper material “pick and place” flow is occurring, but standard, conventionally manufactured machines have some major limitations, such as hard to machine internal channels, reduced payload due to heavy tooling, and safety concerns due to sharp sheet metal edges.
UR was looking for an alternative means of producing EOATs that would help make them more lightweight and easier to program. A customized machine could pick up multiple uniquely shaped parts at a faster rate of speed, which would definitely help improve productivity. Creatz3D is a Stratasys reseller, and UR decided to use its Fortus 450mc FDM 3D printer to fabricate more durable, precise parts out of polycarbonate (PC) material, which was chosen for its excellent sealing and mechanical properties. PC offers more flexibility and strength than other thermoplastics, like ABS, and is also lightweight enough that robot arms can move quickly. By turning to 3D printing like UR did, manufacturers can make on-demand design iterations to parts, while requiring less lead time to complete low volume production runs. The technology offers more freedom in design when making customizable products, and parts can be made much more quickly and cost-efficiently as well. In fact, by using 3D printing, UR was able to achieve time and cost savings, respectively, of 94.6% and 76%, and even lowered the number of components for assembly. The work was completed in less than five days, as opposed to taking weeks to finish. But that’s not all: UR also mounted a 3D printed modular bracket to the EOAT that could be used in the future to hold cameras and sensors to detect abnormalities during the machine’s pick and place operations. However, after receiving some post-trial run feedback, the team realized that a change needed to be made to the bracket, and were able to quickly fix the problem.
Because UR had more design freedom thanks to its use of FDM 3D printing, the company was able to come up with a better solution than the original mounted design. To see the revamped EAOT in action, watch the video from the case study on the Creatz3D website. Discuss this news and other 3D printing topics at 3DPrintBoard.com or share your thoughts in the Facebook comments below. [Images provided by Creatz3D] Printing via 3DPrint.com | The Voice of 3D Printing / Additive Manufacturing https://3dprint.com February 26, 2019 at 01:15PM RAPID + TCT Announces Keynote Speakers for May Event https://ift.tt/2H3Hvb9 RAPID + TCT is North America’s largest and most influential additive manufacturing event. Now in its 29th year, RAPID + TCT is a touchstone event bringing together industrial manufacturing customers, vendors and researchers from all over the world. RAPID + TCT is your opportunity to engage with machine and materials manufacturers as well as service companies from North America and beyond. This event is also the opportunity for you to learn directly from industry leaders about the coming disruption that 3D printing & additive manufacturing will bring to manufacturing. This coming May 20 to 23 RAPID + TCT will take place in Detroit’s Cobo Center. There a trio of keynote speakers will outline the coming disruption through additive manufacturing for you. Fast Company Co-Founder Bill Taylor will tell us how the digital revolution is changing the nature of work, competition, and manufacturing. The noted author, entrepreneur, and speaker will outline how business and manufacturing leaders will nurture those in their organizations who will bring about change. By empowering those who can navigate the turbulent times to come they will find success in inventing a future for their firms and their customers. Taylor will look both at effective leaders and successful businesses who are trailblazers in digital disruption. Furthermore, he will show manufacturing leaders how to master the challenges brought about by digital disruption. Reporting to you from the frontlines of additive manufacturing innovation will be Dr. Naomi Murray, the Director, Advanced Operations, Additive Technology Solutions at Stryker. Her talk on “Leveraging Design Capabilities for Production of Devices that Make Healthcare Better” will look at how Stryker harnesses the power of additive manufacturing to innovate faster while improving its medical devices. Through additive’s design freedom, better products can be made quicker in shapes that were not possible before. In Stryker’s case, this has lead to porous structures being used on several FDA-cleared orthopedic implants for example. Dr. Murray will also explain how Stryker’s proprietary AMagine methodology for implant creation delivers value for the firm, health systems, doctors and patients. BMW has made waves through its longstanding use of 3D printing and additive manufacturing in prototyping and short-run production, making over a million parts so far. The company also announced that it will use 3D printing to let customers customize and individualize car parts. BMW will also use 3D printing in its high end Individual bespoke line of automobiles. BMW’s revelations have been a source of much excitement and speculation on the company’s additive manufacturing prowess and plans. For a number of years now Dr.-Ing Dominik Rietzel has lead BMW Group’s innovations in the polymer 3D printing space as the company’s Head of Additive Manufacturing (Non-Metals). He will look at what developments, changes, and roadblocks additive will have to overcome to be capable of high volume automotive production. He will also discuss new business models now possible through additive manufacturing. He will also explain how AI will help implement additive in part production and how BMW Group will develop future digital manufacturing technologies. RAPID + TCT’s organizer SME is pleased to once again put on this important show for the additive manufacturing industry. “SME is thrilled to offer keynotes of such high caliber at RAPID + TCT 2019,” said Maria Conrado, SME’s senior event manager for RAPID + TCT. “Having Bill, Naomi, and Dominik as our featured speakers each day sets the perfect tone for the event, reinforces the importance of embracing change, and will inspire our attendees to drive disruption in their companies and industries.” Learn about pricing and the logistics of the event here. Printing via 3DPrint.com | The Voice of 3D Printing / Additive Manufacturing https://3dprint.com February 26, 2019 at 12:18PM
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Martin Leedham https://ift.tt/2Nsowbu New People of Print Member, Martin Leedham, has been working as the technical instructor in printmaking at the University of Derby, School of Arts since 2010. Previously, he was a Lecturer in Printmaking at Leicester. Today, Martin owns and runs Castle Printmaking Studio in Ashby-de-la-Zouch, Leicestershire whilst also working freelance with artists wishing to use printmaking. Martin graduated nearly 23 years ago with a degree in fine art printmaking. Working as a print lecturer, technical instructor and printmaking consultant, he believes he is still early in his print learning curve, with plenty still to learn. As a result of working in a UK University and teaching printmaking across the full spectrum of art and design subjects, Martin is happy to flip between print genres. Martin’s art practise is photographic and involves screen-print, risograph and photogravure. His current university research is typographic and based on working with the remnants of an abandoned type collection. “Memories of Motion” has involved building a pantograph to restock the department with new wooden poster type. The project has involved producing type caste into stoneware and glass, as well as using a partly 3D printed pantograph to copy and reproduce type using cheaper materials such as plywood and formica worktop.
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Printing via People of Print https://ift.tt/2DhgcW7 February 26, 2019 at 06:18AM
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Polish Air Force Academy: Researcher Studies Aerodynamics of 3D Printed Aircraft Model https://ift.tt/2GL89Go Robert Babel of the Polish Air Force Academy recently published ‘The initial analysis of the aerodynamic characteristics of a 3D printed model of an aircraft’ as he explored use of the progressive technology in aerodynamics studies, and designs. The emphasis was on studying stream-lined design and stability to create a plane model that could withstand turbulence and any other forces that might place stress on it. While remote control was available, Babel’s goal was to 3D print a plane model that could handle wind gusts and then balance itself automatically, without the use of electronics.
Stability in terms of the y-axis is referred to as longitudinal, providing tail. In relation to both the x- and z-axis, stability is lateral and directional. Using the proper characteristics to understand aircraft performance is vital, although it varies about different conditions for the aircraft whether it is taking off, landing, climbing, or moving forward at maximum speed.
To continue his study in aerodynamic characteristics, Babel used FDM 3D printing to fabricate hull components, performing all testing in a closed-circuit aerodynamic tunnel with an open-circuit circular measuring space. The 3D printed model did not work very well on the first test run, it should be noted, as some of the 3D printing parameters were off, and had to be adjusted. This is a perfect example though of one of the greatest benefits of 3D printing. When an error is discovered, adjustments can be made quickly whether in design or technical settings, and a new print can be manufactured quickly and affordably—and without having to wait on a middleman. The model’s torque, along the transverse axis was responsible for tilting it, and Babel suggests keeping momentum low for proper flight measures. The scientist also points out that the results of this study only ‘constitute a small part of the research’ that should be performed regarding creation of this type of hull.
Aside from the vast field of medicine, it is hard to think of another industry that has been more impacted by 3D printing than aerospace, with NASA enjoying the benefits of 3D printing for decades—although today continually impressing us with rocket components, concepts for new Mars rovers, and even colonization in space. On the smaller level, we have also followed numerous stories regarding projects where scientists, designers, engineers, and students have been involved in using 3D printing to create innovative components. What do you think of this news? Let us know your thoughts! Join the discussion of this and other 3D printing topics at 3DPrintBoard.com. [Source / Images: The initial analysis of the aerodynamic characteristics of a 3D printed model of an aircraft] Printing via 3DPrint.com | The Voice of 3D Printing / Additive Manufacturing https://3dprint.com February 26, 2019 at 04:45AM |
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