W&T Wetenschap & Technologie
Een plek om te discussiėren over wetenschappelijke onderwerpen, wetenschappelijke problemen, technologische projecten en grootse uitvindingen.
Ik kom de laatste tijd steeds meer ontwikkelingen tegen op het gebied van 3D-printers en het is een technologie die de wereld zal gaan veranderen! Tijd voor een topic waarin we deze ontwikkeling kunnen bespreken en nieuwtjes met elkaar kunnen delen 
We zullen steeds minder fabrieken nodig hebben in de toekomst omdat we een klein fabriekje in huis zullen hebben. Er zijn al 3d printers op de markt voor onder de 1000 dollar.
Stel je voor dat je een onderdeel voor je auto nodig hebt en deze gewoon eventjes thuis uitprint, of wat dacht je van deze gitaar:
There's a spider in my guitar: Olaf Diegel's beautifully detailed 3D printed guitars
[Gizmag] has featured many guitars over the years that have veered well away from slight design variations on the ubiquitous Les Paul or Strat body shapes. There have been those which are just stunning (Di Donato/Stereo Acoustic/Tesla Prodigy), others have a look that's both familiar and strange (Ministar/Jetson/Sonic Wind), and others still that are quite frankly bizarre (gAtari 2600/iTar). I think it's fair to say, though, that none have ever looked quite as extraordinarily beautiful as Olaf Diegel's 3D-printed Scarab and Spider electric guitars.
A Professor of Mechtronics at Massey University's School of Engineering & Advanced Technology in Auckland, New Zealand, Diegel told Gizmag that his wonderfully elaborate designs are in the final stages of prototyping ahead of anticipated June availability. He explained that the models featured in the gallery "have their core made out of solid nylon, or aluminum-filled nylon, but the latest (and I think final) design iteration has a core made out of wood, which allows us to better control the resonance and tone of the guitar, which will allow us to do more customization, not just on how the guitar looks, but also on how it sounds."
The Polyamide 2200 or Alumide body of both the prototypes has been created in one piece using an EOS Formiga P100 selective laser sintering system. The Spider has a number of fearsome-looking ODD arachnids positioned throughout its web-like lattice, while there are numerous flowers and insects hanging from the vines of the Scarab. The body shape is rather reminiscent of a Steinberger P-Series headless guitar, with the size being determined by limitations imposed by the current printer. Diegel told us that there are other designs waiting patiently in the wings for the move to a bigger machine, including the wonderful Les Paul-shaped Atom guitar with electrons that actually spin around the nucleus within the open body.
"What makes the technology so great is that we can print all the insects, and intricate detail, inside the guitar bodies all in one piece together with the body," said Diegel. "No assembly needed!"
The designer described the tone offered by the 3D-printed plastic (or plastic/aluminum) instruments as not being quite as bright as guitars with bodies fashioned from wood but the production models should take care of that. These will feature a CNC-machined wood core body surrounded by the 3D-printed plastic open body shape. It's described as being essentially a sleeve that completely envelops the wooden core so that the wood isn't visible, although there is always room to include a stripped away effect to let the stained or natural wood show through strategically-positioned gaps.
Each production model will be uniquely designed for the customer, with some customization possible for the remainder of non-3D-printed hardware (such as neck, pickups, and bridge) and also the chance to replace the ODD branding on the back of the body with a name or logo.
A new website will go live closer to the launch date, when the guitars will be made available to international buyers. Prices are likely to be in the US$3,000 to US$5,000 range.
http://www.zeitnews.org/a(...)printed-guitars.html
We zullen steeds minder fabrieken nodig hebben in de toekomst omdat we een klein fabriekje in huis zullen hebben. Er zijn al 3d printers op de markt voor onder de 1000 dollar.
Stel je voor dat je een onderdeel voor je auto nodig hebt en deze gewoon eventjes thuis uitprint, of wat dacht je van deze gitaar:
There's a spider in my guitar: Olaf Diegel's beautifully detailed 3D printed guitars
[Gizmag] has featured many guitars over the years that have veered well away from slight design variations on the ubiquitous Les Paul or Strat body shapes. There have been those which are just stunning (Di Donato/Stereo Acoustic/Tesla Prodigy), others have a look that's both familiar and strange (Ministar/Jetson/Sonic Wind), and others still that are quite frankly bizarre (gAtari 2600/iTar). I think it's fair to say, though, that none have ever looked quite as extraordinarily beautiful as Olaf Diegel's 3D-printed Scarab and Spider electric guitars.
A Professor of Mechtronics at Massey University's School of Engineering & Advanced Technology in Auckland, New Zealand, Diegel told Gizmag that his wonderfully elaborate designs are in the final stages of prototyping ahead of anticipated June availability. He explained that the models featured in the gallery "have their core made out of solid nylon, or aluminum-filled nylon, but the latest (and I think final) design iteration has a core made out of wood, which allows us to better control the resonance and tone of the guitar, which will allow us to do more customization, not just on how the guitar looks, but also on how it sounds."
The Polyamide 2200 or Alumide body of both the prototypes has been created in one piece using an EOS Formiga P100 selective laser sintering system. The Spider has a number of fearsome-looking ODD arachnids positioned throughout its web-like lattice, while there are numerous flowers and insects hanging from the vines of the Scarab. The body shape is rather reminiscent of a Steinberger P-Series headless guitar, with the size being determined by limitations imposed by the current printer. Diegel told us that there are other designs waiting patiently in the wings for the move to a bigger machine, including the wonderful Les Paul-shaped Atom guitar with electrons that actually spin around the nucleus within the open body.
"What makes the technology so great is that we can print all the insects, and intricate detail, inside the guitar bodies all in one piece together with the body," said Diegel. "No assembly needed!"
The designer described the tone offered by the 3D-printed plastic (or plastic/aluminum) instruments as not being quite as bright as guitars with bodies fashioned from wood but the production models should take care of that. These will feature a CNC-machined wood core body surrounded by the 3D-printed plastic open body shape. It's described as being essentially a sleeve that completely envelops the wooden core so that the wood isn't visible, although there is always room to include a stripped away effect to let the stained or natural wood show through strategically-positioned gaps.
Each production model will be uniquely designed for the customer, with some customization possible for the remainder of non-3D-printed hardware (such as neck, pickups, and bridge) and also the chance to replace the ODD branding on the back of the body with a name or logo.
A new website will go live closer to the launch date, when the guitars will be made available to international buyers. Prices are likely to be in the US$3,000 to US$5,000 range.
http://www.zeitnews.org/a(...)printed-guitars.html
"An educated citizenry is a vital requisite for our survival as a free people."
Nog een mooi artikel:
Printing Muscle
Organovo's 3-D printer creates human tissues that could help speed drug discovery.
In a small clean room tucked into the back of San Diego–based startup Organovo, Chirag Khatiwala is building a thin layer of human skeletal muscle. He inserts a cartridge of specially prepared muscle cells into a 3-D printer, which then deposits them in uniform, closely spaced lines in a petri dish. This arrangement allows the cells to grow and interact until they form working muscle tissue that is nearly indistinguishable from something removed from a human subject.
The technology could fill a critical need. Many potential drugs that seem promising when tested in cell cultures or animals fail in clinical trials because cultures and animals are very different from human tissue. Because Organovo's product is so similar to human tissue, it could help researchers identify drugs that will fail long before they reach clinical trials, potentially saving drug companies billions of dollars. So far, Organovo has built tissue of several types, including cardiac muscle, lung, and blood vessels.
Unlike some experimental approaches that have used ink-jet printers to deposit cells, Organovo's technology enables cells to inPrinting Muscleteract with each other much the way they do in the body. They are packed tightly together and incubated, prompting them to adhere to each other and trade chemical signals. When they're printed, the cells are kept bunched together in a paste that helps them grow, migrate, and align themselves properly. Muscle cells, for example, orient themselves in the same direction to create tissue that can contract.
So far, Organovo has made only small pieces of tissue, but its ultimate goal is to use its 3-D printer to make complete organs for transplants. Because the organs would be printed from a patient's own cells, there would be less danger of rejection.
Organovo plans to fund its organ-printing research with revenue from printing tissues to aid in drug development. The company is undertaking experiments to prove that its technology can help researchers detect drug toxicity earlier than is possible with other tests, and it is setting up partnerships with major companies, starting with the drug giant Pfizer.
http://www.zeitnews.org/applied-sciences/printing-muscle.html
Printing Muscle
Organovo's 3-D printer creates human tissues that could help speed drug discovery.
In a small clean room tucked into the back of San Diego–based startup Organovo, Chirag Khatiwala is building a thin layer of human skeletal muscle. He inserts a cartridge of specially prepared muscle cells into a 3-D printer, which then deposits them in uniform, closely spaced lines in a petri dish. This arrangement allows the cells to grow and interact until they form working muscle tissue that is nearly indistinguishable from something removed from a human subject.
The technology could fill a critical need. Many potential drugs that seem promising when tested in cell cultures or animals fail in clinical trials because cultures and animals are very different from human tissue. Because Organovo's product is so similar to human tissue, it could help researchers identify drugs that will fail long before they reach clinical trials, potentially saving drug companies billions of dollars. So far, Organovo has built tissue of several types, including cardiac muscle, lung, and blood vessels.
Unlike some experimental approaches that have used ink-jet printers to deposit cells, Organovo's technology enables cells to inPrinting Muscleteract with each other much the way they do in the body. They are packed tightly together and incubated, prompting them to adhere to each other and trade chemical signals. When they're printed, the cells are kept bunched together in a paste that helps them grow, migrate, and align themselves properly. Muscle cells, for example, orient themselves in the same direction to create tissue that can contract.
So far, Organovo has made only small pieces of tissue, but its ultimate goal is to use its 3-D printer to make complete organs for transplants. Because the organs would be printed from a patient's own cells, there would be less danger of rejection.
Organovo plans to fund its organ-printing research with revenue from printing tissues to aid in drug development. The company is undertaking experiments to prove that its technology can help researchers detect drug toxicity earlier than is possible with other tests, and it is setting up partnerships with major companies, starting with the drug giant Pfizer.
http://www.zeitnews.org/applied-sciences/printing-muscle.html
"An educated citizenry is a vital requisite for our survival as a free people."
En nog eentje voor het slapen gaan:
Smithsonian making 3D models of items from its collection
What do you do when you're the world's largest museum but can display only two percent of the 137 million items in your collection (a mere 2.75 million) at any given time? In an effort to get more of their treasures into the public eye, specialists at the Smithsonian Institution's 19 collective museums and galleries hit upon the solution of digitizing their collection and 3D printing key models and displays suitable for traveling exhibitions. It's a tall order, but one that's sure to give the rapidly blooming business of additive manufacturing a huge boost.
In the past, whenever curators wanted to duplicate an object, they turned to traditional rubber molds and plaster casts. Now, with the Smithsonian's budding digitization initiative coming up to speed, teams can deploy expensive minimally-invasive laser scanners to generate virtual models of items in the collection with micron-level accuracy. Large additive manufacturing companies, such as RedEye on Demand, can then take those files and generate actual physical replicas suitable for display or loan to other museums, or even schools. The savings on insurance premiums alone could go a long way toward defraying the cost of the massive scanning project.
The program's two co-coordinators, Adam Metallo and Vincent Rossi, both with fine art backgSmithsonian making 3D models of items from its collectionrounds, began at the museum as model makers. Eventually they managed to secure a grant for a 3D scanner which they knew could generate far better models when teamed with a quality 3D printer. A recent effort resulted in what the Smithsonian calls the "largest 3D printed museum quality historical replica" in the world - a statue of Thomas Jefferson identical to the one on display at Jefferson's home, Monticello.
"Our mission," Rossi told SPAR, "is to digitize these huge collections in 3D - everything from insects to aircraft. Our day-to-day job is essentially trying to figure out how to actually accomplish that." They'll certainly have their hands full - the museums' collections literally fill acres of storage space in several facilities scattered around the region.
Unfortunately, funding for the project is still scarce, so Metallo and Rossi split their time between digitizing artifacts with laser or CT scanners (or open-source cloud-based digitization software and standard digital cameras) and touting their services to the museum's many researchers, curators and conservators, as well as potential corporate sponsors, hoping to drum up support.Smithsonian making 3D models of items from its collection.
"The one resource we have plenty of is amazing content," Rossi mused, "and along with that comes frustrating problems for us, but they're potentially interesting problems for the industry. How do we take 3D digitization and take it to the Smithsonian scale? We're at the ground floor of trying to understand that."
Indeed, one major issue with archival scans is how to store the digital files so that they'll be accessible decades into the future, when formats will surely have changed. With millions upon millions of items yet to be scanned, it appears we'll just have to wait to see how things shape up on that front.
Rossi and Metallo will report on their Smithsonian work at SPAR International 2012, April 15-18, in Houston.
http://www.zeitnews.org/a(...)-its-collection.html
Smithsonian making 3D models of items from its collection
What do you do when you're the world's largest museum but can display only two percent of the 137 million items in your collection (a mere 2.75 million) at any given time? In an effort to get more of their treasures into the public eye, specialists at the Smithsonian Institution's 19 collective museums and galleries hit upon the solution of digitizing their collection and 3D printing key models and displays suitable for traveling exhibitions. It's a tall order, but one that's sure to give the rapidly blooming business of additive manufacturing a huge boost.
In the past, whenever curators wanted to duplicate an object, they turned to traditional rubber molds and plaster casts. Now, with the Smithsonian's budding digitization initiative coming up to speed, teams can deploy expensive minimally-invasive laser scanners to generate virtual models of items in the collection with micron-level accuracy. Large additive manufacturing companies, such as RedEye on Demand, can then take those files and generate actual physical replicas suitable for display or loan to other museums, or even schools. The savings on insurance premiums alone could go a long way toward defraying the cost of the massive scanning project.
The program's two co-coordinators, Adam Metallo and Vincent Rossi, both with fine art backgSmithsonian making 3D models of items from its collectionrounds, began at the museum as model makers. Eventually they managed to secure a grant for a 3D scanner which they knew could generate far better models when teamed with a quality 3D printer. A recent effort resulted in what the Smithsonian calls the "largest 3D printed museum quality historical replica" in the world - a statue of Thomas Jefferson identical to the one on display at Jefferson's home, Monticello.
"Our mission," Rossi told SPAR, "is to digitize these huge collections in 3D - everything from insects to aircraft. Our day-to-day job is essentially trying to figure out how to actually accomplish that." They'll certainly have their hands full - the museums' collections literally fill acres of storage space in several facilities scattered around the region.
Unfortunately, funding for the project is still scarce, so Metallo and Rossi split their time between digitizing artifacts with laser or CT scanners (or open-source cloud-based digitization software and standard digital cameras) and touting their services to the museum's many researchers, curators and conservators, as well as potential corporate sponsors, hoping to drum up support.Smithsonian making 3D models of items from its collection.
"The one resource we have plenty of is amazing content," Rossi mused, "and along with that comes frustrating problems for us, but they're potentially interesting problems for the industry. How do we take 3D digitization and take it to the Smithsonian scale? We're at the ground floor of trying to understand that."
Indeed, one major issue with archival scans is how to store the digital files so that they'll be accessible decades into the future, when formats will surely have changed. With millions upon millions of items yet to be scanned, it appears we'll just have to wait to see how things shape up on that front.
Rossi and Metallo will report on their Smithsonian work at SPAR International 2012, April 15-18, in Houston.
http://www.zeitnews.org/a(...)-its-collection.html
"An educated citizenry is a vital requisite for our survival as a free people."
Ha, 3d printers! Het is echt onwijs leuke techniek. Ik heb onlangs voor mezelf een PrintrBot besteld, hoop dat die over een maandje onderweg gaat. Een simpel dingetje maar wel leuk als early adopter van een nieuw genre voor thuisknutselen. Lijkt me geweldig als je zo kunt denken van 'oh de knop van de dimmer is afgebroken. Even meten, schetsen, meteen een leuke aanpassing en printen maar'.
Het kan ook kleiner:
http://tweakers.net/nieuw(...)-3d-nanoprinter.html
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http://reprap.org/wiki/Main_Page is een leuk project voor thuis 3d-printertje bouwen
http://tweakers.net/nieuw(...)-3d-nanoprinter.html
Voor filmpjes en plaatje link even volgen.quote:Onderzoekers maken snelle 3d-nanoprinter
Door Pieter Molenaar, maandag 12 maart 2012 14:39, views: 17.176
Onderzoekers van de Vienna University of Technology hebben een zeer snelle 3d-printer voor het printen van structuren op nanoschaal ontwikkeld. De 3d-printer werkt op basis van spiegels en een laser, en maakt gebruik van een vloeibare hars.
3d-nanoprinter rechtsHuidige 3d-printers die op een dergelijke kleine schaal werken hebben snelheden die worden uitgedrukt in millimeters per seconde, maar de door de Weense onderzoekers ontwikkelde 3d-printer kan ragfijne structuren produceren met snelheden tot vijf meter per seconde.
De onderzoekers maken voor de 3d-printer gebruik van spiegels om een laserstraal te richten en zo een vloeibare hars op specifieke plaatsen uit te laten harden. De acceleratie en deceleratie van de draaiing van de spiegels bleek het grootste struikelblok bij de ontwikkeling.
De vloeibare hars is samengesteld uit onder meer moleculen die onder invloed van laserlicht een kettingreactie veroorzaken onder de monomeren in de hars, waardoor de hars op die plekken uithardt. Deze 'katalysator'-moleculen reageren alleen als ze twee fotonen tegelijk absorberen en dat gebeurt alleen in het centrum van de laserstraal.
Het voordeel van de oplossing van het Weense onderzoeksteam is dat complexere structuren zijn te maken doordat de lagen van de structuren onafhankelijk van elkaar afgezet kunnen worden. De hars kan namelijk op elke 3d-locatie uitgehard worden.
De onderzoekers denken dat de snelheid van de 3d-printer het mogelijk maakt om de technologie te gebruiken voor onder meer medische toepassingen.
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http://reprap.org/wiki/Main_Page is een leuk project voor thuis 3d-printertje bouwen
Als het niet met een hamer te repareren is, is het een elektrisch probleem.
Volgens mij gaan die de strijd aan met de WUR, daar zijn ze als het goed is ergens rond deze tijd klaar met het kweken van hun eerste hamburgers (uit spiervezel).quote:Op dinsdag 13 maart 2012 05:20 schreef Probably_on_pcp het volgende:
Nog een mooi artikel:
Printing Muscle
Organovo's 3-D printer creates human tissues that could help speed drug discovery.
In a small clean room tucked into the back of San Diego–based startup Organovo, Chirag Khatiwala is building a thin layer of human skeletal muscle. He inserts a cartridge of specially prepared muscle cells into a 3-D printer, which then deposits them in uniform, closely spaced lines in a petri dish. This arrangement allows the cells to grow and interact until they form working muscle tissue that is nearly indistinguishable from something removed from a human subject.
[ afbeelding ]
The technology could fill a critical need. Many potential drugs that seem promising when tested in cell cultures or animals fail in clinical trials because cultures and animals are very different from human tissue. Because Organovo's product is so similar to human tissue, it could help researchers identify drugs that will fail long before they reach clinical trials, potentially saving drug companies billions of dollars. So far, Organovo has built tissue of several types, including cardiac muscle, lung, and blood vessels.
Unlike some experimental approaches that have used ink-jet printers to deposit cells, Organovo's technology enables cells to inPrinting Muscleteract with each other much the way they do in the body. They are packed tightly together and incubated, prompting them to adhere to each other and trade chemical signals. When they're printed, the cells are kept bunched together in a paste that helps them grow, migrate, and align themselves properly. Muscle cells, for example, orient themselves in the same direction to create tissue that can contract.
[ afbeelding ]
So far, Organovo has made only small pieces of tissue, but its ultimate goal is to use its 3-D printer to make complete organs for transplants. Because the organs would be printed from a patient's own cells, there would be less danger of rejection.
Organovo plans to fund its organ-printing research with revenue from printing tissues to aid in drug development. The company is undertaking experiments to prove that its technology can help researchers detect drug toxicity earlier than is possible with other tests, and it is setting up partnerships with major companies, starting with the drug giant Pfizer.
http://www.zeitnews.org/applied-sciences/printing-muscle.html
Tof topic! Ik maak voor mijn werk regelmatig 3D meshes van CT scans die volgens mij vrij eenvoudig met een 3D printer geprint zouden kunnen worden.
Goed topic! 3D printers hebben een grote toekomst. En de ontwikkelingen gaan zo enorm snel. Je ziet dat er nu nog op veel aparte gebieden onderzoek gedaan wordt. Printen van metaal, printen van glas, printen van chips, printen op nano-schaal, etcetera. De komende jaren zullen al die dingen steeds meer gecombineerd kunnen worden.
Opgeblazen gevoel of winderigheid? Zo opgelost met Rennie!
Voor m'n werk maak ik er steeds meer gebruik van, voor prototypen, model testen, et cetera. De mogelijkheden lijken met de dag groter te worden.
3D Printing and Printed Electronics Combined in Hybrid "Smart" Wing
So the creation of 3D printed wings with spray on electronics for unmanned aerial vehicles (UAVs) could have potential way beyond the present military applications. The joint development of a model "smart" UAV wing between 3D printer maker, Stratasys (who incidentally provided the 3D printer for the famous Chipotle ad about small farmers) and printed electronics system manufacturer, Optomec, is claimed to be the first time that electronics have been printed on to a complex geometric shape like this.
Besides offering lighter weight embedded components for unmanned, and possibly even manned, aviation—the project could have implications for embedding electronics and solar generating capacity into everything from wind turbines blades to printed housing components.
http://www.zeitnews.org/a(...)id-qsmartq-wing.html
So the creation of 3D printed wings with spray on electronics for unmanned aerial vehicles (UAVs) could have potential way beyond the present military applications. The joint development of a model "smart" UAV wing between 3D printer maker, Stratasys (who incidentally provided the 3D printer for the famous Chipotle ad about small farmers) and printed electronics system manufacturer, Optomec, is claimed to be the first time that electronics have been printed on to a complex geometric shape like this.
Besides offering lighter weight embedded components for unmanned, and possibly even manned, aviation—the project could have implications for embedding electronics and solar generating capacity into everything from wind turbines blades to printed housing components.
http://www.zeitnews.org/a(...)id-qsmartq-wing.html
"An educated citizenry is a vital requisite for our survival as a free people."
Printable Houses and the Future Opportunity Therein
All the way back in March of 2004, working in his laboratory at the University of Southern California in San Diego, Dr. Behrokh Khoshnevis, was working with a new process he had invented called Contour Crafting to construct the world’s first 3D printed wall.
His goal was to use the technology for rapid home construction as a way to rebuild after natural disasters, like the devastating earthquakes that had recently occurred in his home country of Iran.
While we have still not seen our first “printed home” just yet, they will be coming very soon. Perhaps within a year. Commercial buildings will soon follow.
For an industry firmly entrenched in working with nails and screws, the prospects of replacing saws and hammers with giant printing machines seems frightening. But getting beyond this hesitancy lies the biggest construction boom in all history.
Here’s why I think this will happen.
Contour Crafting
Contour Crafting is a form of 3D printing that uses robotic arms and nozzles to squeeze out layers of concrete or other materials, moving back and forth over a set path in order to fabricate a large component. It is a construction technology that has great potential for low-cost, customized buildings that are quicker to make and can therefore reduce energy and emissions.
Using a quick-setting, concrete-like material, contour crafting forms the house’s walls layer by layer until topped off by floors and ceilings that are set into place by the crane. In its current state of thinking, buildings will still require the insertion of structural components, plumbing, wiring, utilities, and even consumer devices like entertainment and audiovisual systems, as the layers are being built.
After using the technology to form simple things like walls and benches, discussions began to focus on other far-reaching opportunities like constructing rapid shelters after natural disasters, building operational structures on the moon out of moon dust, and building cheap houses for people in impoverished countries.
But those early visions were too much for an industry steeped in regulation and tradition, and the laudable ideas of helping the less fortunate will likely give way to a more mainstream approach of working with pieces before building the whole enchilada.
Experimenting with wall-printing technology in 2003
Breaking Through the Barriers
Starting with a mortgage industry that’s becoming increasingly wary of lending on virtually any houses, let alone something that looks radically different, coupled with city planning and zoning departments that have no way of deciding what the code should be on a “non-traditional structure,” and thousands of aging industry experts who can’t imagine building houses in any way other than we do today, we find ourselves up against a slow-moving, massively resistant building culture that will take years to overcome.
That said, this industry will have plenty of opportunity to move forward.
Early on, a number of industries will form around printed components and construction material. Printed blocks, cabinets, wall panels, toilets, and even doors will catch on quickly.
Printed artwork will begin to show up everywhere, including three dimensional “wall printings.”
Imagining what a house-printer could look like
A natural extension of printing new buildings will be devices that recycle the old ones. Ideally, the old material will be ground up and reformulated into new composites that can be re-printed into whatever is needed.
As an example, an old patio deck could be automatically “eaten” by some sort of PacMan device, ground up and mixed with other materials, and used to “print” a new patio deck – all within a couple hours.
By replacing our traditional techniques for pouring concrete, 3d printers could be used to print driveways, sidewalks, benches, fences, foundations, and much more.
When it comes to roofing, small bots will be used to create seamless coatings on the tops of houses. The small army of people needed to reroof a house today will be replaced with a single person who’s job is to place the bot at its initial starting point and make sure there is a consistent supply of material to coat the entire roof.
Only after gaining traction in a myriad of these component industries will we see the public warming up to entire houses being printed from the ground up.
Here are a few examples of this type of 3D printed construction projects already taking place:
The SeatSlug
The SeatSlug is based on the shape of the recently discovered flabellina goddardi sea with the surface inspired by traditional Japanese designs known as karakusamon patterns. Serving both as a piece of artwork and a parkbench, there will be little resistance to this type of niche application.
D-Shape – A printer capable of printing an entire building
An Italian inventor, Enrico Dini, chairman of the company Monolite UK Ltd, has developed a huge three-dimensional printer called D-Shape that can print entire buildings out of sand and an inorganic binder. The printer works by spraying a thin layer of sand followed by a layer of magnesium-based binder from hundreds of nozzles on its underside. The glue turns the sand to solid stone, which is built up layer-by-layer from the bottom up to form anything from a sculpture to a sandstone building.
A team at Loughborough University rethinks the use of concrete with their 3D printer technology.
The Radiolaria
Enrico Dini’s first project was a 24’ tall gazebo-like structure call the Radiolaria, built in 2010.
Experimenting with their ability to craft unusual shapes and forms out of concrete, the Loughborough University team created this unusual piece.
When we rid ourselves of the constraints of flat walls and smooth surfaces, a massive new wave of options begins to appear.
Thinking Three-Dimensionally
If we were able to actually create a three-dimensional holographic display above our computers, like you sometimes see in movies, we wouldn’t even grasp what we could do with that because we have been entrenched into two dimensional thinking from birth, with two-dimensional tools like paper, slide rules and blackboards.
Breaking out of this 2D thinking, the questions then become things like, how do you surf the Internet three dimensionally? How do you build three-dimensional charts and graphs?
We won’t really know how to use that type of display technology until we’ve had an entire generation of kids growing up with it and learning how to use it so that it gets integrated into our thinking and dreaming on a deeper level.
Printing Houses
Our thinking about homes today has been constrained by the materials we work with. Eight-foot sheets of drywall, wooden 2X4s, specific sizes for doors and windows, and an overwhelming desire to keep all surfaces flat, flat, flat.
However, flatness is rarely found in nature. Construction worker hate dealing with curves and unusual shapes because it complicates their lives tremendously. Once we step away from the world of flatness, we begin to see a number of playful options that seem to come straight out of a Dr. Seuss book.
There is no doubt that a non-linear home will have its own unique challenges. Hanging pictures on a wall, installing cabinets, and even arranging furniture will all present obstacles to our present way of thinking.
But the energy and creativity that will flow from these spaces will be nothing short of breathtaking. Walls will no longer need to be flat surfaces. Every wall can be designed with textures, protrusions, and artistic “surface rubble” to put an end to the dreadful uniformity in in our homes today.
What’s Next?
When printing entire buildings, there are many details that are not well understood, and that’s where the great opportunities lie. As an example:
When working with composite material, what is the expansion and contraction rate of this material?
How long will it last?
How resistant is it to wind and rain and even extreme weather like tornadoes, hail, and hurricanes?
Is it possible to instantly switch the printer ingredients from concrete to glass, and automatically “print” windows into their place?
When printing a building with a seamless skin, what are the advantages and disadvantages of this process? Is it possible to “print” the carpeting into a room? And when it wears out, is it possible to bring in bots that “eat” the old carpeting, grind it up, and reprints it with a new formulation and new color?
Once a building is in place, can a printer be used to “print” the cabinets, furniture, toilets, shelving, and decorative details? If part of a structure is damaged, will it be possible to use “repair printers” to produce seamless patches?
Can we use this same technology to “print” our highways?
Non-linear thinking for the buildings in our future
Final Thoughts
Will your next home be a printed home?
Along with this new technology will come a number of labor-reducing and cost-saving features. The number of people needed to build a home will drop by a factor of ten, maybe more.
Over time, we may see old houses torn down with PacMan-like recycling machines, where the material is ground up, reformulated, and an entirely new house is printed in its place – all in less than one day.
All of this sounds pretty radical by today’s standards. But once we see the first homes being built this in this fashion, a new wave of change will quickly descend upon us. And even though many will lose their old jobs, the number of new jobs that get created along the way will more than replace everything we lost.
Personally, I can’t wait.
http://www.zeitnews.org/a(...)rtunity-therein.html
All the way back in March of 2004, working in his laboratory at the University of Southern California in San Diego, Dr. Behrokh Khoshnevis, was working with a new process he had invented called Contour Crafting to construct the world’s first 3D printed wall.
His goal was to use the technology for rapid home construction as a way to rebuild after natural disasters, like the devastating earthquakes that had recently occurred in his home country of Iran.
While we have still not seen our first “printed home” just yet, they will be coming very soon. Perhaps within a year. Commercial buildings will soon follow.
For an industry firmly entrenched in working with nails and screws, the prospects of replacing saws and hammers with giant printing machines seems frightening. But getting beyond this hesitancy lies the biggest construction boom in all history.
Here’s why I think this will happen.
Contour Crafting
Contour Crafting is a form of 3D printing that uses robotic arms and nozzles to squeeze out layers of concrete or other materials, moving back and forth over a set path in order to fabricate a large component. It is a construction technology that has great potential for low-cost, customized buildings that are quicker to make and can therefore reduce energy and emissions.
Using a quick-setting, concrete-like material, contour crafting forms the house’s walls layer by layer until topped off by floors and ceilings that are set into place by the crane. In its current state of thinking, buildings will still require the insertion of structural components, plumbing, wiring, utilities, and even consumer devices like entertainment and audiovisual systems, as the layers are being built.
After using the technology to form simple things like walls and benches, discussions began to focus on other far-reaching opportunities like constructing rapid shelters after natural disasters, building operational structures on the moon out of moon dust, and building cheap houses for people in impoverished countries.
But those early visions were too much for an industry steeped in regulation and tradition, and the laudable ideas of helping the less fortunate will likely give way to a more mainstream approach of working with pieces before building the whole enchilada.
Experimenting with wall-printing technology in 2003
Breaking Through the Barriers
Starting with a mortgage industry that’s becoming increasingly wary of lending on virtually any houses, let alone something that looks radically different, coupled with city planning and zoning departments that have no way of deciding what the code should be on a “non-traditional structure,” and thousands of aging industry experts who can’t imagine building houses in any way other than we do today, we find ourselves up against a slow-moving, massively resistant building culture that will take years to overcome.
That said, this industry will have plenty of opportunity to move forward.
Early on, a number of industries will form around printed components and construction material. Printed blocks, cabinets, wall panels, toilets, and even doors will catch on quickly.
Printed artwork will begin to show up everywhere, including three dimensional “wall printings.”
Imagining what a house-printer could look like
A natural extension of printing new buildings will be devices that recycle the old ones. Ideally, the old material will be ground up and reformulated into new composites that can be re-printed into whatever is needed.
As an example, an old patio deck could be automatically “eaten” by some sort of PacMan device, ground up and mixed with other materials, and used to “print” a new patio deck – all within a couple hours.
By replacing our traditional techniques for pouring concrete, 3d printers could be used to print driveways, sidewalks, benches, fences, foundations, and much more.
When it comes to roofing, small bots will be used to create seamless coatings on the tops of houses. The small army of people needed to reroof a house today will be replaced with a single person who’s job is to place the bot at its initial starting point and make sure there is a consistent supply of material to coat the entire roof.
Only after gaining traction in a myriad of these component industries will we see the public warming up to entire houses being printed from the ground up.
Here are a few examples of this type of 3D printed construction projects already taking place:
The SeatSlug
The SeatSlug is based on the shape of the recently discovered flabellina goddardi sea with the surface inspired by traditional Japanese designs known as karakusamon patterns. Serving both as a piece of artwork and a parkbench, there will be little resistance to this type of niche application.
D-Shape – A printer capable of printing an entire building
An Italian inventor, Enrico Dini, chairman of the company Monolite UK Ltd, has developed a huge three-dimensional printer called D-Shape that can print entire buildings out of sand and an inorganic binder. The printer works by spraying a thin layer of sand followed by a layer of magnesium-based binder from hundreds of nozzles on its underside. The glue turns the sand to solid stone, which is built up layer-by-layer from the bottom up to form anything from a sculpture to a sandstone building.
A team at Loughborough University rethinks the use of concrete with their 3D printer technology.
The Radiolaria
Enrico Dini’s first project was a 24’ tall gazebo-like structure call the Radiolaria, built in 2010.
Experimenting with their ability to craft unusual shapes and forms out of concrete, the Loughborough University team created this unusual piece.
When we rid ourselves of the constraints of flat walls and smooth surfaces, a massive new wave of options begins to appear.
Thinking Three-Dimensionally
If we were able to actually create a three-dimensional holographic display above our computers, like you sometimes see in movies, we wouldn’t even grasp what we could do with that because we have been entrenched into two dimensional thinking from birth, with two-dimensional tools like paper, slide rules and blackboards.
Breaking out of this 2D thinking, the questions then become things like, how do you surf the Internet three dimensionally? How do you build three-dimensional charts and graphs?
We won’t really know how to use that type of display technology until we’ve had an entire generation of kids growing up with it and learning how to use it so that it gets integrated into our thinking and dreaming on a deeper level.
Printing Houses
Our thinking about homes today has been constrained by the materials we work with. Eight-foot sheets of drywall, wooden 2X4s, specific sizes for doors and windows, and an overwhelming desire to keep all surfaces flat, flat, flat.
However, flatness is rarely found in nature. Construction worker hate dealing with curves and unusual shapes because it complicates their lives tremendously. Once we step away from the world of flatness, we begin to see a number of playful options that seem to come straight out of a Dr. Seuss book.
There is no doubt that a non-linear home will have its own unique challenges. Hanging pictures on a wall, installing cabinets, and even arranging furniture will all present obstacles to our present way of thinking.
But the energy and creativity that will flow from these spaces will be nothing short of breathtaking. Walls will no longer need to be flat surfaces. Every wall can be designed with textures, protrusions, and artistic “surface rubble” to put an end to the dreadful uniformity in in our homes today.
What’s Next?
When printing entire buildings, there are many details that are not well understood, and that’s where the great opportunities lie. As an example:
When working with composite material, what is the expansion and contraction rate of this material?
How long will it last?
How resistant is it to wind and rain and even extreme weather like tornadoes, hail, and hurricanes?
Is it possible to instantly switch the printer ingredients from concrete to glass, and automatically “print” windows into their place?
When printing a building with a seamless skin, what are the advantages and disadvantages of this process? Is it possible to “print” the carpeting into a room? And when it wears out, is it possible to bring in bots that “eat” the old carpeting, grind it up, and reprints it with a new formulation and new color?
Once a building is in place, can a printer be used to “print” the cabinets, furniture, toilets, shelving, and decorative details? If part of a structure is damaged, will it be possible to use “repair printers” to produce seamless patches?
Can we use this same technology to “print” our highways?
Non-linear thinking for the buildings in our future
Final Thoughts
Will your next home be a printed home?
Along with this new technology will come a number of labor-reducing and cost-saving features. The number of people needed to build a home will drop by a factor of ten, maybe more.
Over time, we may see old houses torn down with PacMan-like recycling machines, where the material is ground up, reformulated, and an entirely new house is printed in its place – all in less than one day.
All of this sounds pretty radical by today’s standards. But once we see the first homes being built this in this fashion, a new wave of change will quickly descend upon us. And even though many will lose their old jobs, the number of new jobs that get created along the way will more than replace everything we lost.
Personally, I can’t wait.
http://www.zeitnews.org/a(...)rtunity-therein.html
"An educated citizenry is a vital requisite for our survival as a free people."
Vanaf 4:45 wordt de quantum printer besproken:quote:
Zo fakking vet is dit he. Weet je misschien ook of je computers enzo uiteindelijk kan printen?
Met dit apparaat kunnen we gaan printen op atomair niveau en kunnen we dus in principe alles bouwen wat we willen. Net zoals de replicator in Star Trek. De wetenschapper in het filmpje dacht 5 jaar geleden dat het nog zo'n 20 jaar zou duren voordat we zo'n printer zullen hebben. Michio Kaku denkt meer aan 50 jaar, maar hij komt er in ieder geval aan!
"An educated citizenry is a vital requisite for our survival as a free people."
Goed topic 
"No, I do not believe in patents. I believe that patents make other people dis-incentied in coming up with new thing" - Thomas Peterffy
Will 3-D printing launch a new industrial revolution?
Peter Schmitt, an MIT doctoral student, printed a clock in 2009. He didn't print an image of a clock on a piece of paper. He printed a three-dimensional clock -- an eight-inch diameter plastic timekeeping device with moving gears, hands and counterweights.
When he put it up on a wall and pushed the counterweight, it went ticktock.
"It wasn't very accurate, but it was a functioning clock," Schmitt said.
MIT scientists also would like you to be able to print your own robot. Their vision: Decide what you want it to do, download the design from the Internet, use software to make whatever changes you want and hit "print."
Scientists around the world are working on a technology that could go well beyond robots and clocks and turn the world's economy upside-down. It goes by the name of 3-D printing, and some proclaim that it will trigger a new Industrial Revolution. The Atlantic Council, an industry consulting firm based in Washington, D.C., says the technology is "transformational."
Those working in the field call it "additive manufacturing."
Much of modern manufacturing is by reduction. Manufacturers take blocks of plastic, wood, or metal, and grind and machine away until they get the item they want. All the plastic, wood, or metal that doesn't make it into the item is thrown away, maybe as much as 90 percent wasted.
3-D printing puts down layers of metal powders or plastics as directed by software, just as ink is laid down on paper directed by printer drivers. After each layer is completed, the tray holding the item is lowered a fraction of a millimeter and the next layer is added. Printing continues until the piece is complete.
Molten metal is allowed to cool and harden; plastics or metal powders are hardened by heat or ultraviolet light. The ingredients aren't limited to those substances; almost anything that flows can be accommodated, even chocolate.
There is little waste, and it is possible to change the object by simply working with the software that drives the printer the way text is changed in a word processor.
The end products may be better or possibly more beautiful than current products, the council wrote in a research report. 3-D printing allows designs impossible to make with conventional manufacturing techniques.
The first 3-D printer was invented by the American Charles Hull in 1984. The first machines were huge, slow, very expensive, and had limited use.
In 2004, Adrian Bowyer, a lecturer at Bath University in England, invented a machine that manufactured 50 percent of its own parts and in 2008, the machine printed itself. There was no real profit to be made in a self-replicating machine so Bowyer put the RepRap in the public domain, "open source" in the lexicon. Anyone could buy this desktop printer for under $400 and adapt it at will to print more copies of itself, or other items.
The design keeps improving as people think of better ways to do things, a form of crowd-sourcing, and users share designs online, often for free.
Additive manufacturing, meanwhile, became a huge and growing industry. According to Wohler Associates, a Colorado consulting firm, the industry has sustained an annual growth rate of 26.2 percent for more than 20 years and revenues will reach $3 billion by 2016.
Every year the technique turns out more complex artifacts, faster and cheaper. The technology is now used to print aircraft landing gears, dresses, car parts, individualized tooth crowns, artificial hips and knees, and more.
Scientists are experimenting with human cells to print organs. An Airbus contractor is working on printing an entire aircraft wing using titanium powder. Parts of the fuselage of Boeing's 787 Dreamliner were printed.
Printing a robot is far more complicated than building a clock, but researchers at MIT, the University of Pennsylvania and Harvard think the result will "transform manufacturing and … democratize access to robots," according to MIT's Daniela Rus, leader of the project.
You could identify a need -- say cleaning up the kitchen floor after a kid spilled lunch -- and design a robot specifically for tasks like that. You would download a design from the Internet, adjust to customize it for your kitchen, and print out exactly the robot you designed, moving parts and all.
The researchers already have printed two robots, including one designed to go into contaminated areas and one with a gripper that would help people with disabilities.
The technology introduces serious issues for the world economy.
Most finished products now are the result of many parts manufactured in various places around the world, coming together for assembling into one product. They are then shipped to customers around the world. With 3-D printing, in theory, the entire product would be made at one site, at one time, in one machine, anywhere. Economies of scale would be irrelevant.
"Printing a few thousand iPhones on demand (and with instant updates or different versions for each phone) at a local facility that can manufacture many other products may be far more cost-effective than manufacturing ten million identical iPhones in China and shipping them to 180 countries around the world," the Atlantic Council wrote in a report.
Clearly, not everyone would share the advantages. Manufacturing centers like China could lose millions of jobs in that sector, and their economies could be destabilized. The industries that transport the supply line and distribute the finished product would also be hit, the council wrote. Warehouses full of parts and products could be replaced by machines that print on demand.
The council predicts a renaissance in American manufacturing. But that concept has issues too: most of the machines require no human assistance once the printing starts. You turn it on before you leave the factory and when you come back in the morning, your widget is there.
http://www.zeitnews.org/a(...)rial-revolution.html
Peter Schmitt, an MIT doctoral student, printed a clock in 2009. He didn't print an image of a clock on a piece of paper. He printed a three-dimensional clock -- an eight-inch diameter plastic timekeeping device with moving gears, hands and counterweights.
When he put it up on a wall and pushed the counterweight, it went ticktock.
"It wasn't very accurate, but it was a functioning clock," Schmitt said.
MIT scientists also would like you to be able to print your own robot. Their vision: Decide what you want it to do, download the design from the Internet, use software to make whatever changes you want and hit "print."
Scientists around the world are working on a technology that could go well beyond robots and clocks and turn the world's economy upside-down. It goes by the name of 3-D printing, and some proclaim that it will trigger a new Industrial Revolution. The Atlantic Council, an industry consulting firm based in Washington, D.C., says the technology is "transformational."
Those working in the field call it "additive manufacturing."
Much of modern manufacturing is by reduction. Manufacturers take blocks of plastic, wood, or metal, and grind and machine away until they get the item they want. All the plastic, wood, or metal that doesn't make it into the item is thrown away, maybe as much as 90 percent wasted.
3-D printing puts down layers of metal powders or plastics as directed by software, just as ink is laid down on paper directed by printer drivers. After each layer is completed, the tray holding the item is lowered a fraction of a millimeter and the next layer is added. Printing continues until the piece is complete.
Molten metal is allowed to cool and harden; plastics or metal powders are hardened by heat or ultraviolet light. The ingredients aren't limited to those substances; almost anything that flows can be accommodated, even chocolate.
There is little waste, and it is possible to change the object by simply working with the software that drives the printer the way text is changed in a word processor.
The end products may be better or possibly more beautiful than current products, the council wrote in a research report. 3-D printing allows designs impossible to make with conventional manufacturing techniques.
The first 3-D printer was invented by the American Charles Hull in 1984. The first machines were huge, slow, very expensive, and had limited use.
In 2004, Adrian Bowyer, a lecturer at Bath University in England, invented a machine that manufactured 50 percent of its own parts and in 2008, the machine printed itself. There was no real profit to be made in a self-replicating machine so Bowyer put the RepRap in the public domain, "open source" in the lexicon. Anyone could buy this desktop printer for under $400 and adapt it at will to print more copies of itself, or other items.
The design keeps improving as people think of better ways to do things, a form of crowd-sourcing, and users share designs online, often for free.
Additive manufacturing, meanwhile, became a huge and growing industry. According to Wohler Associates, a Colorado consulting firm, the industry has sustained an annual growth rate of 26.2 percent for more than 20 years and revenues will reach $3 billion by 2016.
Every year the technique turns out more complex artifacts, faster and cheaper. The technology is now used to print aircraft landing gears, dresses, car parts, individualized tooth crowns, artificial hips and knees, and more.
Scientists are experimenting with human cells to print organs. An Airbus contractor is working on printing an entire aircraft wing using titanium powder. Parts of the fuselage of Boeing's 787 Dreamliner were printed.
Printing a robot is far more complicated than building a clock, but researchers at MIT, the University of Pennsylvania and Harvard think the result will "transform manufacturing and … democratize access to robots," according to MIT's Daniela Rus, leader of the project.
You could identify a need -- say cleaning up the kitchen floor after a kid spilled lunch -- and design a robot specifically for tasks like that. You would download a design from the Internet, adjust to customize it for your kitchen, and print out exactly the robot you designed, moving parts and all.
The researchers already have printed two robots, including one designed to go into contaminated areas and one with a gripper that would help people with disabilities.
The technology introduces serious issues for the world economy.
Most finished products now are the result of many parts manufactured in various places around the world, coming together for assembling into one product. They are then shipped to customers around the world. With 3-D printing, in theory, the entire product would be made at one site, at one time, in one machine, anywhere. Economies of scale would be irrelevant.
"Printing a few thousand iPhones on demand (and with instant updates or different versions for each phone) at a local facility that can manufacture many other products may be far more cost-effective than manufacturing ten million identical iPhones in China and shipping them to 180 countries around the world," the Atlantic Council wrote in a report.
Clearly, not everyone would share the advantages. Manufacturing centers like China could lose millions of jobs in that sector, and their economies could be destabilized. The industries that transport the supply line and distribute the finished product would also be hit, the council wrote. Warehouses full of parts and products could be replaced by machines that print on demand.
The council predicts a renaissance in American manufacturing. But that concept has issues too: most of the machines require no human assistance once the printing starts. You turn it on before you leave the factory and when you come back in the morning, your widget is there.
http://www.zeitnews.org/a(...)rial-revolution.html
"An educated citizenry is a vital requisite for our survival as a free people."
Met een korrel zout te nemen. Het enige dat ie print zijn een aantal plastic stukken. Het Mendelmax model bijvoorbeeld kost 700$ en bevat 85$ aan geprinte onderdelen.quote:
[..]
In 2004, Adrian Bowyer, a lecturer at Bath University in England, invented a machine that manufactured 50 percent of its own parts and in 2008, the machine printed itself. There was no real profit to be made in a self-replicating machine so Bowyer put the RepRap in the public domain, "open source" in the lexicon. Anyone could buy this desktop printer for under $400 and adapt it at will to print more copies of itself, or other items.
[..]
http://reprap.org/wiki/Main_Page
http://mendelmax.com/tikiwiki/tiki-index.php?page=MendelMax
http://www.thingiverse.com/thing:12645
Wat leuke voorwerpen geprint met een 3D-printer:
En nog indrukwekkender:
En nog indrukwekkender:
"An educated citizenry is a vital requisite for our survival as a free people."
3D printen lijkt me zo vet. Ik wacht nog wat jaartjes totdat dit soort projecten nog goedkoper worden en dan schaf ik me er zeker eentje aan.
wow zo'n 3d scanner op 1:55 lijkt me ook zeer leuk speelgoed.quote:
Wat leuke voorwerpen geprint met een 3D-printer:
.
Ja echt niet normaal zo'n scanner! Hij scant een object tot een nauwkeurigheid van minder dan een mensenhaar. En hij lijkt ook de bewegende objecten binnenin de sleutel gewoon mee te scannen en te identificeren als losse objecten.quote:
3D printen lijkt me zo vet. Ik wacht nog wat jaartjes totdat dit soort projecten nog goedkoper worden en dan schaf ik me er zeker eentje aan.
[..]
wow zo'n 3d scanner op 1:55 lijkt me ook zeer leuk speelgoed.
Die sleutel die ze uitprinten is gewoon in een keer geprint, echt vet!
"An educated citizenry is a vital requisite for our survival as a free people."
Hier printen ze een hele fiets uit!
Geef mij niet zo'n printer want ik ga de meest belachelijke fiets bedenken en deze uitprinten om vervolgens mee naar m'n werk te fietsen
Geef mij niet zo'n printer want ik ga de meest belachelijke fiets bedenken en deze uitprinten om vervolgens mee naar m'n werk te fietsen
"An educated citizenry is a vital requisite for our survival as a free people."
Kennen de meeste mensen hier het concept van Fablab? In Amsterdam zit er 1 in de Waag (op de nieuwmarkt). Je kan hier gratis je eigen dingen uitprinten.
De enige voorwaardes zijn dat je je eigen materiaal moet meenemen, en dat je jou design 'open source' maakt zodat andere het ook kunnen gebruiken en aanpassen.
De printers zijn alleen niet zo goed als die je in bovenstaande filmpjes ziet natuurlijk. Fablab houdt zich namelijk met veel meer zaken bezig dan alleen 3dprinten. Bovendien is het allemaal gesubsidieerd door de overheid en niet commercieel.
De enige voorwaardes zijn dat je je eigen materiaal moet meenemen, en dat je jou design 'open source' maakt zodat andere het ook kunnen gebruiken en aanpassen.
De printers zijn alleen niet zo goed als die je in bovenstaande filmpjes ziet natuurlijk. Fablab houdt zich namelijk met veel meer zaken bezig dan alleen 3dprinten. Bovendien is het allemaal gesubsidieerd door de overheid en niet commercieel.
Opgeblazen gevoel of winderigheid? Zo opgelost met Rennie!
In het magazine "Koppen" op de Vlaamse openbare omroep was er toevallig deze week een reportage over 3D-printing. Hier te bekijken:
http://www.een.be/programmas/koppen/3d-printing
Blijkbaar zijn er in Vlaanderen wel drie bedrijven daarmee bezig, in de reportage zie je onder andere een vrouw wiens arm via deze techniek hersteld is, en een modeshow met accessoires die hiermee ontwikkeld zijn.
http://www.een.be/programmas/koppen/3d-printing
Blijkbaar zijn er in Vlaanderen wel drie bedrijven daarmee bezig, in de reportage zie je onder andere een vrouw wiens arm via deze techniek hersteld is, en een modeshow met accessoires die hiermee ontwikkeld zijn.
Gister in RTL nieuws:
http://www.rtl.nl/xl/#/u/63abd627-7282-4e02-afcc-06467c1b46cd/
een 3d printer van TNO speciaal voor massaproductie
http://www.tno.nl/content(...)2-04-27%2016:24:06.0
The Economist heeft er een uitgebreid stuk over geschreven: http://www.economist.com/node/21552901 (in het midden zit een rijtje linkjes 'in this report' naar de diverse pagina's in dit stuk)
Overigens zit ik nog steeeeds te wachten op mijn 3d printer van Printrbot.com, maar ik heb geduld, liever een goede printer iets later dan een haastklus...
http://www.rtl.nl/xl/#/u/63abd627-7282-4e02-afcc-06467c1b46cd/
een 3d printer van TNO speciaal voor massaproductie
http://www.tno.nl/content(...)2-04-27%2016:24:06.0
The Economist heeft er een uitgebreid stuk over geschreven: http://www.economist.com/node/21552901 (in het midden zit een rijtje linkjes 'in this report' naar de diverse pagina's in dit stuk)
Overigens zit ik nog steeeeds te wachten op mijn 3d printer van Printrbot.com, maar ik heb geduld, liever een goede printer iets later dan een haastklus...
Cool, je eigen printer! Kun je ons eens af en toe op de hoogte houden over je projectjes? Ik wil er zelf in principe ook wel eentje hebben, dus ben erg benieuwd naar jouw ervaringen.quote:
Gister in RTL nieuws:
http://www.rtl.nl/xl/#/u/63abd627-7282-4e02-afcc-06467c1b46cd/
een 3d printer van TNO speciaal voor massaproductie
http://www.tno.nl/content(...)2-04-27%2016:24:06.0
The Economist heeft er een uitgebreid stuk over geschreven: http://www.economist.com/node/21552901 (in het midden zit een rijtje linkjes 'in this report' naar de diverse pagina's in dit stuk)
Overigens zit ik nog steeeeds te wachten op mijn 3d printer van Printrbot.com, maar ik heb geduld, liever een goede printer iets later dan een haastklus...
"An educated citizenry is a vital requisite for our survival as a free people."
Als iemand nog aandelen heeft van Lego corp.
Dit is het moment om ze van de hand te doen.
Voortaan zelf je blokjes printen.
Ik vraag me af wat dit voor de mensheid gaat betekenen, deze technologie heeft binnen afzienbare tijd extreem veel invloed op heel veel gebieden.
Dit is het moment om ze van de hand te doen.
Voortaan zelf je blokjes printen.
Ik vraag me af wat dit voor de mensheid gaat betekenen, deze technologie heeft binnen afzienbare tijd extreem veel invloed op heel veel gebieden.
Ik wil nog steeds een keer een print maken van mijn eigen schedel 
Ik heb al een gedetailleerde MRI scan, en een script die daar soort van de schedel uit kan vissen. Ik vond het voorheen alleen wat te duur. Misschien binnenkort nog eens kijken wat het tegenwoordig kost om dat te laten doen.
Ik heb al een gedetailleerde MRI scan, en een script die daar soort van de schedel uit kan vissen. Ik vond het voorheen alleen wat te duur. Misschien binnenkort nog eens kijken wat het tegenwoordig kost om dat te laten doen.
Egregious professor of Cruel and Unusual Geography
Onikaan ni ov dovah
Onikaan ni ov dovah
Als ie binnen 125 cm3 te passen is (5x5x5 maar alle andere maten mogen ook) kun je voor 12 euro ex btw klaar zijn bij i.materialise.com.quote:
Ik wil nog steeds een keer een print maken van mijn eigen schedel
3D printers zijn zeker tof, ik heb er zelf ook een gemaakt; de Prusa Mendel (v2)
Erg leuk speelgoed erg handig als iets kapot gaat in huis (klemmetje van GPS houder kapot...even tekenen en 20min later gefixt) en veel sleutelhangers gemaakt voor vrienden enzo (personalized 
)
Het bouwen van zo'n machine is eigenlijk nog niet eens het moeilijkste, de meeste frames zijn vrij eenvoudig te maken en omdat alle plastic (geprinte) onderdelen op maat gemaakt zijn zit alles zo in elkaar.
Het meest lastige is het kalibreren en streven naar 'de perfecte print' daar komen wat meer dingen bij kijken. Zo heb je te maken met krimp van onderdelen, loskomen van basisplaat, backlash, nozzle instellingen etc. Dit zijn best veel instellingen die je moet doen en er is geen 'gouden ei' voor gezien elke machine toch weer anders is. Dat is dan gelijk ook weer het leuke er aan, omdat veel machines verschillend zijn kun je veel van elkaar leren en aanpassen. Maar als je alles aardig gefine-tuned hebt is het wel heel erg leuk om mee te klooien :p
Een paar nuttige bronnen:
www.reprap.org
forums.reprap.org
www.thingiverse.com
www.emakershop.com
Erg leuk speelgoed
erg handig als iets kapot gaat in huis (klemmetje van GPS houder kapot...even tekenen en 20min later gefixt) en veel sleutelhangers gemaakt voor vrienden enzo (personalized )Het bouwen van zo'n machine is eigenlijk nog niet eens het moeilijkste, de meeste frames zijn vrij eenvoudig te maken en omdat alle plastic (geprinte) onderdelen op maat gemaakt zijn zit alles zo in elkaar.
Het meest lastige is het kalibreren en streven naar 'de perfecte print' daar komen wat meer dingen bij kijken. Zo heb je te maken met krimp van onderdelen, loskomen van basisplaat, backlash, nozzle instellingen etc. Dit zijn best veel instellingen die je moet doen en er is geen 'gouden ei' voor gezien elke machine toch weer anders is. Dat is dan gelijk ook weer het leuke er aan, omdat veel machines verschillend zijn kun je veel van elkaar leren en aanpassen. Maar als je alles aardig gefine-tuned hebt is het wel heel erg leuk om mee te klooien :p
Een paar nuttige bronnen:
www.reprap.org
forums.reprap.org
www.thingiverse.com
www.emakershop.com
Bram! Boterham!
Very very interestingquote:Op donderdag 10 mei 2012 19:47 schreef Khadgar het volgende:
[..]
Als ie binnen 125 cm3 te passen is (5x5x5 maar alle andere maten mogen ook) kun je voor 12 euro ex btw klaar zijn bij i.materialise.com.
Ik ga eens aan de slag met het schedel model.
Egregious professor of Cruel and Unusual Geography
Onikaan ni ov dovah
Onikaan ni ov dovah
Het is nog een work in progress, maar het begint er op te lijken.
Met matlab zitten klooien met een T1 MRI scan. Er vallen wel wat gaten in, plus dingen als de neus en ogen die er nog aan zitten. Heb nog wat handmatig aanpaswerk te doen
Met matlab zitten klooien met een T1 MRI scan. Er vallen wel wat gaten in, plus dingen als de neus en ogen die er nog aan zitten. Heb nog wat handmatig aanpaswerk te doen
Egregious professor of Cruel and Unusual Geography
Onikaan ni ov dovah
Onikaan ni ov dovah
Heb wel vrij veel ervaring met freesmachines, met name op micro/nano-schaal, maar niet met 3d-printers. Wil wel nog eens zo'n ding aanschaffen, of maken, en daarmee aan de slag.
Ik ga dit topic dan ook volgen vanaf nu.
Ik ga dit topic dan ook volgen vanaf nu.
Helaas is het een mooi staaltje van misleidende reklame...quote:
[..]
Ja echt niet normaal zo'n scanner! Hij scant een object tot een nauwkeurigheid van minder dan een mensenhaar. En hij lijkt ook de bewegende objecten binnenin de sleutel gewoon mee te scannen en te identificeren als losse objecten.
Die sleutel die ze uitprinten is gewoon in een keer geprint, echt vet!
Ik ken de 3d scanners van zcorp en die kunnen geen inwendige detailering maken. Geen enkele scanner gebaseerd op (laser) licht kan dit. daarvoor moet je gamma stralen hebben...
Wat men hier in dit promo filmpje gedaan heeft is simpel weg eerst begonnen aan een scan.
erna een CAD versie van gemaakt met 3D software, en dan doen alsof het resultaat uit die software komt van de 3Dscanner...
....boerebedrog is het...
is niet de eerste keer dat ik fabrikanten van 3dprinters betrap om de werkelijkheid veel mooier voor te stellen dan ze eigenlijk is...
Helaas doen ze het allemaal: 3dsystems (heeft Zcorp over genomen), Objet, etc....
en wat de low end 3dprinters betreft, die produceren momenteel echt rommel dat nauwelijks bruikbaar is.
Positief lichtpuntje is dat de high end printer momenteel sterk dalen in prijs omdat de concurentie steeds heviger wordt, voor al door de DIY kits die op de markt komen..(vooral de DIY SLA printers)
[ Bericht 5% gewijzigd door 3digit op 25-05-2012 15:34:13 ]
Mooi spul!
Hoe sterk is dat materiaal eigenlijk. Ik kan me niet voorstellen dat het geschikt is voor ieder soort onderdeel. Temperatuurbestendigheid, elasticiteitsmodulus, kerfweerstand.
Hoe sterk is dat materiaal eigenlijk. Ik kan me niet voorstellen dat het geschikt is voor ieder soort onderdeel. Temperatuurbestendigheid, elasticiteitsmodulus, kerfweerstand.
"If nothing else works, a total pig-headed unwillingness to look facts in the face will see us through" General Melchett
Klik hier voor uw dagelijkse portie vitaminen.
Klik hier voor uw dagelijkse portie vitaminen.
Volgens mij is het plastic, en dat kan je in principe zo hard maken als je zelf wil. Zelfs harder dan vele metalen.quote:
Mooi spul!
Hoe sterk is dat materiaal eigenlijk. Ik kan me niet voorstellen dat het geschikt is voor ieder soort onderdeel. Temperatuurbestendigheid, elasticiteitsmodulus, kerfweerstand.
Ja, maar het ene plastic is het andere niet. En de manier waarop je plastic verwerkt tot product is ook van grote invloed op de uiteindelijke prestaties/sterkte. Volgens mij is het 3d printen vooral beperkt tot sinteren door verhoogde temperaturen en het aanelkaar binden met andere materialen.quote:
[..]
Volgens mij is het plastic, en dat kan je in principe zo hard maken als je zelf wil. Zelfs harder dan vele metalen.
"If nothing else works, a total pig-headed unwillingness to look facts in the face will see us through" General Melchett
Klik hier voor uw dagelijkse portie vitaminen.
Klik hier voor uw dagelijkse portie vitaminen.
Jup maar het spul dat ik bij ShapeWays en i.Materialise bestel komt er echt goed stevig uit! Verwacht geen wonderen en ontwerp goed, dan krijg je mooie spullen
Lijkt mij echt zo leuk om in de toekomst eentje te hebben en zelf een paar spullen in elkaar steken en maken. Alleen zal dat nog een tijdje duren...
Klopt ja.quote:
[..]
Ja, maar het ene plastic is het andere niet. En de manier waarop je plastic verwerkt tot product is ook van grote invloed op de uiteindelijke prestaties/sterkte. Volgens mij is het 3d printen vooral beperkt tot sinteren door verhoogde temperaturen en het aanelkaar binden met andere materialen.
Wel kan je de onderdelen verbinden met oplosmiddelen, waardoor je op moleculair niveau het ene deel niet van het andere onderscheiden kan. Ben wel weer benieuwd hoe goed dat lukt met grotere onderdelen.
ik zie iederen al effe en torrentje downloaden van de nieuwe iphone, printen maar en je hebt een gratis iphone
Tsja, dit zat er natuurlijk aan te komen.
http://www.wired.com/design/2012/05/3-d-printing-patent-law/
http://www.wired.com/design/2012/05/3-d-printing-patent-law/
Een mooi reactie op een ander forum:quote:3-D Printing’s Legal Morass
Last winter, Thomas Valenty bought a MakerBot — an inexpensive 3-D printer that lets you quickly create plastic objects. His brother had some Imperial Guards from the tabletop game Warhammer, so Valenty decided to design a couple of his own Warhammer-style figurines: a two-legged war mecha and a tank.
He tweaked the designs for a week until he was happy. “I put a lot of work into them,” he says. Then he posted the files for free downloading on Thingiverse, a site that lets you share instructions for printing 3-D objects. Soon other fans were outputting their own copies.
Until the lawyers showed up.
Games Workshop, the UK-based firm that makes Warhammer, noticed Valenty’s work and sent Thingiverse a takedown notice, citing the Digital Millennium Copyright Act. Thingiverse removed the files, and Valenty suddenly became an unwilling combatant in the next digital war: the fight over copying physical objects.
“The DMCA knocked the wind out of me,” he wrote in an e-mail to me. “I haven’t uploaded many of my printable models since it happened.”
When I first heard about 3-D printers, I figured the trend wouldn’t go mainstream for decades, if ever. Oops. Companies now offer 3-D printers for just over $1,000, and prices are dropping rapidly.
Observers predict that in a few years we’ll see printers that integrate scanning capability — so your kid can toss in a Warhammer figurine, hit Copy, and get a new one. The machine will become a photocopier of stuff.
This has all the makings of an epic and surreal legal battle. You thought Hollywood and record labels were powerful lobbyists, crushing Napster and suing file-sharers? Wait until you see what the manufacturing industry can do. The American Chamber of Commerce is the single largest lobbyist on Capitol Hill, spending $60 million a year.
“Printing in 3-D is a disruptive technology that raises a lot of intellectual property issues,” says Michael Weinberg, a senior staff attorney with Public Knowledge, a group that advocates for consumers’ digital rights.
But there’s one big difference in this clash: The legal situation might actually favor the amateurs.
That’s because, as Weinberg points out, disputes over copies of physical objects are often fought using patent law, which is far less strict than copyright. For example, patents last only 20 years, which means many cool everyday objects (Lego bricks!) are long out of patent. What’s more, patent law generally governs only a complete assembled product, so creating replacement parts — a thriving pastime among hobbyists — is probably legal.
What 3-D printing hobbyists mostly have to watch out for, Weinberg argues, is copying artistic patterns or designs on an object. That violates copyright. But if you stick to reproducing or modeling the basic physical nature of something — particularly if you’re rejiggering a physical concept into a new form — you’re probably safe. (Indeed, Weinberg isn’t even sure Valenty infringed on Warhammer’s copyrighted designs, because Games Workshop is accusing him of creating figurines in the style of the game, and you can’t copyright style.)
So really, the longer-term danger here is that manufacturers will decide the laws aren’t powerful enough. Once kids start merrily copying toys, manufacturers will push to hobble 3-D printing with laws similar to the Stop Online Piracy Act. “You’ll have people going to Washington and saying we need new rights,” Weinberg frets. Imagine laws that keep 3-D printers from outputting anything but objects “authorized” by megacorporations — DRM for the physical world. To stave this off, Weinberg is trying to educate legislators now.
I hope he’s successful. After all, 3-D printers aren’t just about copying. They’re a powerful new tool for experimenting with the design of the physical world, for thinking, for generating new culture, for stretching our imaginations.
quote:Knew that would happen.
There will be a similar ongoing battle now to try to introduce the same kind of controls on 3D printing that exist on file sharing. DRM. Always-online internet-connection-required printers. Etc, etc, etc.
There will be a time when we are going to have to start questioning whether the current concept of intellectual property even works anymore, in a world where movies can be copied instantly, or physical objects can be replicated. Which will modern man choose; to heavily protect intellectual property and criminalise people for something that can be done instantly with a button click, or to bite the bullet and come up with some new form of economics that acknolwedges we don't have control over a piece of intellectual property once it has been released (i.e. the death of albums in favour of smaller-scale live-music). It's obvious that only one of these two options is possible without large collapses in the current system.
Opgeblazen gevoel of winderigheid? Zo opgelost met Rennie!
Ach, als fabrikanten zich zo opstellen, delven ze vanzelf het onderspit.quote:Op donderdag 14 juni 2012 09:58 schreef Eyjafjallajoekull het volgende:
Tsja, dit zat er natuurlijk aan te komen.
http://www.wired.com/design/2012/05/3-d-printing-patent-law/
[ afbeelding ]
[..]
Een mooi reactie op een ander forum:
[..]
Dan creeeren we toch lekker met z'n allen een open-source Warhammer-achtig concept en laten we de fabrikanten gewoon links liggen
"An educated citizenry is a vital requisite for our survival as a free people."
Lijkt me fantastisch. Ik prefereer open source toch al boven commerciėle producten en zelfs gratis diensten (want reclame is meh).quote:
[..]
Ach, als fabrikanten zich zo opstellen, delven ze vanzelf het onderspit.
Dan creeeren we toch lekker met z'n allen een open-source Warhammer-achtig concept en laten we de fabrikanten gewoon links liggen
Nanoscale printers may bypass factories
ETH-Zurich researchers have developed an economic, fast and reproducible method for printing micro- and nanoscale (<100 nm) structures in a manner similar to an ink-jet printer printing art.
The trick: ultrafine particles are transferred onto a surface from a capillary with the aid of an electrical field. Depending on how long material accumulates at the same spot, the structure can be a dot or nano-tower, or even an arch.
Surfaces modified with nano-structures can absorb, concentrate and transmit light instead of reflecting it.
Applications
Increased efficiency of thin-film solar cells by capturing the light and channeling it directly towards the active layer, for instance, instead of reflectng part of the light and letting another part escape unused.
Camouflage suits
New kinds of faster, more selective and highly sensitive detectors and sensors might be feasible.
Special light microscopes in which light nanoantennas trigger fluorescence, enabling individual molecules to be observed.
Wherever material needs to be applied on a nanoscale in a targeted fashion — a CPU printed on the spot, for example.
Advantages
-Structures can be applied to different surfaces in a quick and reproducible manner.
-Fast because the printer can be programmed in such a way that material is applied precisely where it is needed.
-Removal and waste of excess material no longer required.
-Less expensive — no large-scale facilities, high calssification cleanrooms, exceedingly high temperatures or special pressure ratios, and laborious and time-consuming vacuum steps.
-Throughput and size of the printed surfaces may be increased considerably during industrial production.
-Prototyping at the smallest scale could be performed fast and affordably.
The researchers next plan to develop a print head containing several individually addressable capillaries to increase throughput and enable stacking layers of different materials.
http://www.zeitnews.org/n(...)ypass-factories.html
ETH-Zurich researchers have developed an economic, fast and reproducible method for printing micro- and nanoscale (<100 nm) structures in a manner similar to an ink-jet printer printing art.
The trick: ultrafine particles are transferred onto a surface from a capillary with the aid of an electrical field. Depending on how long material accumulates at the same spot, the structure can be a dot or nano-tower, or even an arch.
Surfaces modified with nano-structures can absorb, concentrate and transmit light instead of reflecting it.
Applications
Increased efficiency of thin-film solar cells by capturing the light and channeling it directly towards the active layer, for instance, instead of reflectng part of the light and letting another part escape unused.
Camouflage suits
New kinds of faster, more selective and highly sensitive detectors and sensors might be feasible.
Special light microscopes in which light nanoantennas trigger fluorescence, enabling individual molecules to be observed.
Wherever material needs to be applied on a nanoscale in a targeted fashion — a CPU printed on the spot, for example.
Advantages
-Structures can be applied to different surfaces in a quick and reproducible manner.
-Fast because the printer can be programmed in such a way that material is applied precisely where it is needed.
-Removal and waste of excess material no longer required.
-Less expensive — no large-scale facilities, high calssification cleanrooms, exceedingly high temperatures or special pressure ratios, and laborious and time-consuming vacuum steps.
-Throughput and size of the printed surfaces may be increased considerably during industrial production.
-Prototyping at the smallest scale could be performed fast and affordably.
The researchers next plan to develop a print head containing several individually addressable capillaries to increase throughput and enable stacking layers of different materials.
http://www.zeitnews.org/n(...)ypass-factories.html
"An educated citizenry is a vital requisite for our survival as a free people."
Researchers synthesize printable, Electrically Conductive Gel
The Jell-O-like material, from the labs of Stanford professors Yi Cui and Zhenan Bao, may have applications in areas as widespread as energy storage, medical sensors and biofuel cells.
Stanford researchers have invented an electrically conductive gel that is quick and easy to make, can be patterned onto surfaces with an inkjet printer and demonstrates unprecedented electrical performance.
The material, created by Stanford chemical engineering Associate Professor Zhenan Bao, materials science and engineering Associate Professor Yi Cui and members of their labs, is a kind of conducting hydrogel – a jelly that feels and behaves like biological tissues, but conducts electricity like a metal or semiconductor.
That combination of characteristics holds enormous promise for biological sensors and futuristic energy storage devices, but has proven difficult to manufacture until now.
The research appears this month in the journal PNAS.
Printing Jell-O
Bao and Cui made the gel by binding long chains of the organic compound aniline together with phytic acid, found naturally in plant tissues. The acid is able to grab up to six polymer chains at once, making for an extensively cross-linked network.
The Jell-O-like material, from the labs of Stanford professors Yi Cui and Zhenan Bao, may have applications in areas as widespread as energy storage, medical sensors and biofuel cells.
Stanford researchers have invented an electrically conductive gel that is quick and easy to make, can be patterned onto surfaces with an inkjet printer and demonstrates unprecedented electrical performance.
The material, created by Stanford chemical engineering Associate Professor Zhenan Bao, materials science and engineering Associate Professor Yi Cui and members of their labs, is a kind of conducting hydrogel – a jelly that feels and behaves like biological tissues, but conducts electricity like a metal or semiconductor.
That combination of characteristics holds enormous promise for biological sensors and futuristic energy storage devices, but has proven difficult to manufacture until now.
The research appears this month in the journal PNAS.
Printing Jell-O
Bao and Cui made the gel by binding long chains of the organic compound aniline together with phytic acid, found naturally in plant tissues. The acid is able to grab up to six polymer chains at once, making for an extensively cross-linked network.
"There are already commercially available conducting polymers," said Bao, "but they all form a uniform film without any nanostructures."
In contrast, the new gel's cross-linking makes for a complex, sponge-like structure. The hydrogel is marked with innumerable tiny pores that expand the gel's surface area, increasing the amount of charge it can hold, its ability to sense chemicals, and the rapidity of its electrical response.
Still, the gel can be easily manipulated. Because the material doesn't solidify until the last step of its synthesis, it can be printed or sprayed as a liquid and turned into a gel after it's already in place – meaning that manufacturers should be able to construct intricately patterned electrodes at low cost.
"You can't print Jell-O," said Cui. "But with this technique, we can print it and make it Jell-O later."
Soft electrodes
The material's unusual structure also gives the gel what Cui referred to as "remarkable electronic properties."
Most hydrogels are tied together by a large number of insulating molecules, reducing the material's overall ability to pass electrical current. But phytic acid is a "small-molecule dopant" – meaning that when it links polymer chains, it also lends them charge. This effect makes the hydrogel highly conductive.
The gel's conductance is "among the best you can get through this kind of process," said Cui. Its capacity to hold charge is very high, and its response to applied charge is unusually fast.
The substance's similarity to biological tissues, its large surface area and its electrical capabilities make it well suited for allowing biological systems to communicate with technological hardware.
The researchers envision it being used in everything from medical probes and laboratory biological sensors to biofuel cells and high-energy density capacitors.
"And all it's made of are commercially available ingredients thrown into a water solution," said Bao.
The paper's first authors are Guihua Yu, a postdoctoral fellow in chemical engineering at Stanford, and Lijia Pan, a visiting scholar in chemical engineering from Nanjing University, China.
Stanford's Precourt Institute for Energy funded the research.
Source: Stanford University
http://www.zeitnews.org/c(...)-conductive-gel.html
In de niet zo verrre toekomst gaan we gewoon computers printen en hele huizen met alle nodige elektronica gewoon ingebouwd
The Jell-O-like material, from the labs of Stanford professors Yi Cui and Zhenan Bao, may have applications in areas as widespread as energy storage, medical sensors and biofuel cells.
Stanford researchers have invented an electrically conductive gel that is quick and easy to make, can be patterned onto surfaces with an inkjet printer and demonstrates unprecedented electrical performance.
The material, created by Stanford chemical engineering Associate Professor Zhenan Bao, materials science and engineering Associate Professor Yi Cui and members of their labs, is a kind of conducting hydrogel – a jelly that feels and behaves like biological tissues, but conducts electricity like a metal or semiconductor.
That combination of characteristics holds enormous promise for biological sensors and futuristic energy storage devices, but has proven difficult to manufacture until now.
The research appears this month in the journal PNAS.
Printing Jell-O
Bao and Cui made the gel by binding long chains of the organic compound aniline together with phytic acid, found naturally in plant tissues. The acid is able to grab up to six polymer chains at once, making for an extensively cross-linked network.
The Jell-O-like material, from the labs of Stanford professors Yi Cui and Zhenan Bao, may have applications in areas as widespread as energy storage, medical sensors and biofuel cells.
Stanford researchers have invented an electrically conductive gel that is quick and easy to make, can be patterned onto surfaces with an inkjet printer and demonstrates unprecedented electrical performance.
The material, created by Stanford chemical engineering Associate Professor Zhenan Bao, materials science and engineering Associate Professor Yi Cui and members of their labs, is a kind of conducting hydrogel – a jelly that feels and behaves like biological tissues, but conducts electricity like a metal or semiconductor.
That combination of characteristics holds enormous promise for biological sensors and futuristic energy storage devices, but has proven difficult to manufacture until now.
The research appears this month in the journal PNAS.
Printing Jell-O
Bao and Cui made the gel by binding long chains of the organic compound aniline together with phytic acid, found naturally in plant tissues. The acid is able to grab up to six polymer chains at once, making for an extensively cross-linked network.
"There are already commercially available conducting polymers," said Bao, "but they all form a uniform film without any nanostructures."
In contrast, the new gel's cross-linking makes for a complex, sponge-like structure. The hydrogel is marked with innumerable tiny pores that expand the gel's surface area, increasing the amount of charge it can hold, its ability to sense chemicals, and the rapidity of its electrical response.
Still, the gel can be easily manipulated. Because the material doesn't solidify until the last step of its synthesis, it can be printed or sprayed as a liquid and turned into a gel after it's already in place – meaning that manufacturers should be able to construct intricately patterned electrodes at low cost.
"You can't print Jell-O," said Cui. "But with this technique, we can print it and make it Jell-O later."
Soft electrodes
The material's unusual structure also gives the gel what Cui referred to as "remarkable electronic properties."
Most hydrogels are tied together by a large number of insulating molecules, reducing the material's overall ability to pass electrical current. But phytic acid is a "small-molecule dopant" – meaning that when it links polymer chains, it also lends them charge. This effect makes the hydrogel highly conductive.
The gel's conductance is "among the best you can get through this kind of process," said Cui. Its capacity to hold charge is very high, and its response to applied charge is unusually fast.
The substance's similarity to biological tissues, its large surface area and its electrical capabilities make it well suited for allowing biological systems to communicate with technological hardware.
The researchers envision it being used in everything from medical probes and laboratory biological sensors to biofuel cells and high-energy density capacitors.
"And all it's made of are commercially available ingredients thrown into a water solution," said Bao.
The paper's first authors are Guihua Yu, a postdoctoral fellow in chemical engineering at Stanford, and Lijia Pan, a visiting scholar in chemical engineering from Nanjing University, China.
Stanford's Precourt Institute for Energy funded the research.
Source: Stanford University
http://www.zeitnews.org/c(...)-conductive-gel.html
In de niet zo verrre toekomst gaan we gewoon computers printen en hele huizen met alle nodige elektronica gewoon ingebouwd
"An educated citizenry is a vital requisite for our survival as a free people."
Wat een leuk topic. Ik heb zelf een Prusa Mendel gebouwd. Ik heb nu nog wat problemen met de extruder, aangezien deze waarschijnlijk te lang is. Hierdoor had de PLA de neiging om verstopt te raken waardoor je niet verder kon printen. Ik krijg een nieuwe Hot End die het probleem hopelijk oplost.
Foto'tje:
Zal binnenkort even betere foto's maken. Dit is iig mijn 'werkplekje'.
Foto'tje:
Zal binnenkort even betere foto's maken. Dit is iig mijn 'werkplekje'.
Coolquote:
Wat een leuk topic. Ik heb zelf een Prusa Mendel gebouwd. Ik heb nu nog wat problemen met de extruder, aangezien deze waarschijnlijk te lang is. Hierdoor had de PLA de neiging om verstopt te raken waardoor je niet verder kon printen. Ik krijg een nieuwe Hot End die het probleem hopelijk oplost.
Foto'tje:
[ afbeelding ]
Zal binnenkort even betere foto's maken. Dit is iig mijn 'werkplekje'.
Hou ons hier op de hoogte van je creaties
"An educated citizenry is a vital requisite for our survival as a free people."
Ik kreeg gister een mailtje dat mijn PrintrBot onderweg is. Ben erg benieuwd of het wat gaat worden.
Research paves the way for accurate manufacturing of complex parts for aerospace and car industries
Producing strong, lightweight and complex parts for car manufacturing and the aerospace industry is set to become cheaper and more accurate thanks to a new technique developed by engineers from the University of Exeter. The research team has developed a new method for making three-dimensional aluminium composite parts by mixing a combination of relatively inexpensive powders.
Combining these elements causes a reaction which results in the production of particles that are 600 times smaller than the width of a human hair. Around 100 nanometres in size, the reaction uniformly distributes them through the material, making it very strong.
The process is based on the emerging technique of Selective Laser Manufacturing (SLM), in which laser manufactures complicated parts from metal powders, at the University's Centre for Additive Layer Manufacturing. The new technique has the potential to manufacture aluminium composite parts as pistons, drive shafts, suspension components, brake discs and almost any structural components of cars or aeroplanes. It also enables the production of lighter structural designs with innovative geometries leading to further reduce of the weight of products.
The team's latest research findings are published in the Journal of Alloys and Compounds.
Parts for cars and aeroplanes are widely made from aluminium, which is relatively light, with other reinforcement particles to make it stronger. The traditional methods, generally involved casting and mechanical alloying, can be inaccurate and expensive, especially when the part has a complex shape. Over the last decade, new SLM techniques have been developed, which enable parts with more complicated shapes to be produced. The new SLM techniques can be applied to manufacture aluminium composite parts from specific powder mixtures.
To carry out this new technique, the researchers use a laser to melt a mixture of powders, composed of aluminium and a reactive reinforcing material for example an iron oxide combination. A reaction between the powders results in the formation of new particles, which act as reinforcements and distribute evenly throughout the composite material.
This method allows parts with complex shapes to be easily produced. The new materials have very fine particles compared with other composites, making them more robust. The reaction between constituents releases energy, which also means materials can be produced at a higher rate using less power. This technique is significantly cheaper and more sustainable than other SLM methods which directly blend very fine powders to manufacture composites.
University of Exeter PhD student Sasan Dadbakhsh said: "This new development has great potential to make high performance parts for car manufacturing, the aerospace industry and potentially other industries. Additive layer manufacturing technologies are becoming increasingly accessible so this method could become a viable approach for manufacturing."
Dr Liang Hao of the University of Exeter added: "This advancement allows the rapid development of sustainable lightweight composite components. This particularly helps to save a considerable amount of material, energy and cost for the production of one-off or small volume products."
http://www.zeitnews.org/a(...)-car-industries.html
Gaat niet over 3D printers, maar deze stof die met een laser wordt verwarmd, dat proces kan natuurlijk ook worden ingebouwd in een 3D printer
Producing strong, lightweight and complex parts for car manufacturing and the aerospace industry is set to become cheaper and more accurate thanks to a new technique developed by engineers from the University of Exeter. The research team has developed a new method for making three-dimensional aluminium composite parts by mixing a combination of relatively inexpensive powders.
Combining these elements causes a reaction which results in the production of particles that are 600 times smaller than the width of a human hair. Around 100 nanometres in size, the reaction uniformly distributes them through the material, making it very strong.
The process is based on the emerging technique of Selective Laser Manufacturing (SLM), in which laser manufactures complicated parts from metal powders, at the University's Centre for Additive Layer Manufacturing. The new technique has the potential to manufacture aluminium composite parts as pistons, drive shafts, suspension components, brake discs and almost any structural components of cars or aeroplanes. It also enables the production of lighter structural designs with innovative geometries leading to further reduce of the weight of products.
The team's latest research findings are published in the Journal of Alloys and Compounds.
Parts for cars and aeroplanes are widely made from aluminium, which is relatively light, with other reinforcement particles to make it stronger. The traditional methods, generally involved casting and mechanical alloying, can be inaccurate and expensive, especially when the part has a complex shape. Over the last decade, new SLM techniques have been developed, which enable parts with more complicated shapes to be produced. The new SLM techniques can be applied to manufacture aluminium composite parts from specific powder mixtures.
To carry out this new technique, the researchers use a laser to melt a mixture of powders, composed of aluminium and a reactive reinforcing material for example an iron oxide combination. A reaction between the powders results in the formation of new particles, which act as reinforcements and distribute evenly throughout the composite material.
This method allows parts with complex shapes to be easily produced. The new materials have very fine particles compared with other composites, making them more robust. The reaction between constituents releases energy, which also means materials can be produced at a higher rate using less power. This technique is significantly cheaper and more sustainable than other SLM methods which directly blend very fine powders to manufacture composites.
University of Exeter PhD student Sasan Dadbakhsh said: "This new development has great potential to make high performance parts for car manufacturing, the aerospace industry and potentially other industries. Additive layer manufacturing technologies are becoming increasingly accessible so this method could become a viable approach for manufacturing."
Dr Liang Hao of the University of Exeter added: "This advancement allows the rapid development of sustainable lightweight composite components. This particularly helps to save a considerable amount of material, energy and cost for the production of one-off or small volume products."
http://www.zeitnews.org/a(...)-car-industries.html
Gaat niet over 3D printers, maar deze stof die met een laser wordt verwarmd, dat proces kan natuurlijk ook worden ingebouwd in een 3D printer
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