Factoid-Free* Potpourri - Home
3D printing is a form of additive manufacturing
technology where a three dimensional object is created by laying down
successive layers of material.
3D printers are generally faster, more affordable and easier to use than other additive manufacturing technologies.
3D printers offer product developers the ability to print parts and assemblies made of several materials
with different mechanical and physical properties in a single build process.
Advanced 3D printing technologies yield models that closely emulate the look, feel and functionality of product prototypes.
A 3D printer works by taking a 3D computer file and using and making a series of cross-sectional slices.
Each slice is then printed one on top of the other to create the 3D object.
Since 2003 there has been large growth in the sale of 3D printers.
Additionally, the cost of 3D printers has declined.
The technology also finds use in the jewellery, footwear, industrial design, architecture,
engineering and construction (AEC), automotive, aerospace, dental and medical industries.
===> [More]: http://en.wikipedia.org/wiki/3D_printing
The 3-D Printing Revolution - (14-3/4 min. - YouTube audio/video) - November 2011 TED Talk presentation. 2012 may be the year of 3-D printing, when this three-decade-old technology finally becomes accessible and even commonplace. Lisa Harouni gives a useful introduction to this fascinating way of making things -- including intricate objects once impossible to create. - http://www.youtube.com/watch?v=OhYvDS7q_V8
Online videos & more of 3-D printing in action:
Replacing Body Parts
(13-1/2 min. video - NOVA ScienceNOW - January 26, 2011)
[The last 30-seconds of this science video shows a beating heart
that has been ink-jet 3-D printed from living cells!!!]
'Printing out' new ears and skin
February 21, 2011
By Jason Palmer and Matt Danzico
BBC News, Washington DC
The next step in the 3D printing revolution
may be body parts
including cartilage, bone and even skin.
Three-dimensional printing is a technique
for making solid objects with devices not unlike a computer printer,
building up line by line, and then vertically layer by layer.
While the approach works with polymers and plastics,
the raw ingredients of 3D printing
have been recently branching out significantly.
The printers have been co-opted even to make foods,
and do-it-yourself biology
experiments dubbed "garage
-- and has most recently been employed
to repair a casting of Rodin's sculpture The Thinker
that was damaged in a botched robbery.
Print Your Own Teeth: Rapid Prototyping Comes to Dentistry - ScienceDaily (July 14, 2011) — What if, instead of waiting days or weeks for a cast to be produced and prosthetic dental implants, false teeth and replacement crowns to be made, your dentist could quickly scan your jaw and "print" your new teeth using a rapid prototyping machine known as a 3D printer? - http://mcaf.ee/f2x8d
Washington State University researchers have used a 3-D printer to create a bone-like material and structure that can be used in orthopedic procedures, dental work and to deliver medicine for treating osteoporosis. Paired with actual bone, it acts as a scaffold for new bone to grow on and ultimately dissolves with no apparent ill effects.
The authors report on successful in vitro tests in the journal Dental Materials and say they're already seeing promising results with in vivo tests on rats and rabbits. It's possible that doctors will be able to custom order replacement bone tissue in a few years, said Susmita Bose, co-author and professor in WSU's School of Mechanical and Materials Engineering."If a doctor has a CT scan of a defect, we can convert it to a CAD file and make the scaffold according to the defect," Bose said. - http://www.sciencedaily.com/releases/2011/11/111129185923.htm
Printable, Electrically Conductive Gel With Unprecedented Electrical Performance Synthesized - ScienceDaily (July 4, 2012) — 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. - http://www.sciencedaily.com/releases/2012/07/120704182543.htm
PayPal Founder Backs Synthetic Meat Printing Company - (August 16, 2012 - by Duncan Geere - Wired/UK) - The Thiel Foundation has made a six-figure grant to a series of biotechnology startups, including a company that wants to 3-D-print meat.
Modern Meadow is a Missouri-based startup that believes 3-D printing could help to take some of the environmental cost out of producing a hamburger. He said: “If you look at the resource intensity of everything that goes into a hamburger, it is an environmental train wreck.”
The company claims that by carefully layering mixtures of cells of different types in a specific structure, in-vitro meat production becomes feasible. It’s set a short-term goal of printing a sliver of meat around two centimeters by one centimeter, and less than half a millimeter thick, which is edible.The company explains in a submission to the United States Department of Agriculture: “The technology has several advantages in comparison to earlier attempts to engineer meat in vitro. The bio-ink particles can be reproducibly prepared with mixtures of cells of different type. Printing ensures consistent shape, while post-printing structure formation and maturation in the bioreactor facilitates conditioning.” - http://tinyurl.com/99f4mwe
The New MakerBot Replicator Might Just Change Your World - (Sept. 9, 2012 - by Chris Andersson - Wired) - You might think of 3-D printing as bleeding-edge technology, relevant only to geeks or high-end design workshops. But you may have encountered a 3-D printer already, in circumstances so prosaic you didn’t even notice.
Let’s start at the dentist’s office. Many custom dental fittings are now 3-D printed—like the series of mouth guards, each slightly different from the last, that are used to change tooth alignment over months. After a dental technician scans the current position of the teeth, all positions intermediate to the desired end point are modeled by software and then printed out in plastic. Also, if you’re lucky enough to have a dentist who can replace a crown in a single sitting, it’s because models are 3-D printed and then the replacement teeth are milled right there in the office.
…. Practically every consumer item or electronic gadget you own has been prototyped on a 3-D printer; ditto for the newer buildings around you. ….
Commercial 3-D printing works with only a few dozen types of materials, mostly metals and plastics, but more are in the works. Researchers are experimenting with exotic “inks” that range from wood pulp to sugar. Some devices can extrude liquid foods, like cupcake icing and melted chocolate. Soon we’ll be able to print electric circuits, potentially making complex electronics from scratch.
A home 3-D printer is fun. The concept of a home 3-D printer, though, is the beginning of a new industrial revolution. ….So once you have a design on your computer, you can prototype a single copy on your desktop fabricator—or upload it to a commercial manufacturing service and generate thousands. …. Modern CAD software like the free Autodesk 123D even offers wizards to make it simple to go from one copy to many. …. - http://tinyurl.com/ctskquk
Craig Venter Imagines A World With Printable Life Forms - (Oct. 16, 2012 - by Daniela Hernandez - Wired Science) - Craig Venter imagines a future where you can download software, print a vaccine, inject it, and presto! Contagion averted.
“It’s a 3-D printer for DNA, a 3-D printer for life,” Venter said here today at the inaugural Wired Health Conference in New York City.The geneticist and his team of scientists are already testing out a version of his digital biological converter, or “teleporter.” - http://www.wired.com/wiredscience/2012/10/printable-life-forms
3D Printing A Bicycle
(9-3/4 min. - YouTube audio/video)
Robot-assisted 3D Printer Aids March Of The Machines - (Jan. 22, 2013 - by Paul Marks, chief technology correspondent - NewScientist) - While some 3D printers can make many of the parts needed to make a copy of themselves, most need human help to assemble the final product. Not for much longer: machines could soon be making machines if Roomba maker iRobot gets its way.
Enter iRobot's do-it-all robotic fabricator, comprising a twin-armed robot allied with a 3D printer, a milling machine and a drill, all on one platform. The platform is peppered with sensors so that a computer can choreograph all stages of manufacture, using the additive technique of 3D printing or the subtractive ones of milling and drilling, as needed. Both robot arms have dextrous grippers with six degrees of freedom, so one can hold a newly 3D-printed piece while the other secures another piece to it with glue, connectors or fasteners."Since no human intervention is used product design is simpler and production is more efficient," claim the inventors. It's clear is that if anyone thought 3D printers might spawn a new wave of employment they had better think again: it looks like any such benefit could be short-lived. - http://tinyurl.com
(2-1/2 min. - YouTube audio/video)
Printable Functional 'Bionic' Ear Melds Electronics And Biology - May 1, 2013 — Scientists at Princeton University used off-the-shelf printing tools to create a functional ear that can "hear" radio frequencies far beyond the range of normal human capability.The researchers' primary purpose was to explore an efficient and versatile means to merge electronics with tissue. The scientists used 3D printing of cells and nanoparticles followed by cell culture to combine a small coil antenna with cartilage, creating what they term a bionic ear. - http://www.sciencedaily.com/releases/2013/05/130501193208.htm
A New Face
(2 min. - YouTube audio/video)
First Sound Test
(2 min. - YouTube audio/video)
3D-Printed Gear Bearing
(2 min. - YouTube audio/video)
Flexible Woven Cups
(1-1/2 min. - YouTube audio/video)
(3-3/4 min. - video)
3-D Printing: The Greener Choice - Oct. 3, 2013 — 3D printing isn't just cheaper, it's also greener, says Michigan Technological University's Joshua Pearce.
Even Pearce, an aficionado of the make-it-yourself-and-save technology, was surprised at his study's results. It showed that making stuff on a 3D printer uses less energy -- and therefore releases less carbon dioxide -- than producing it en masse in a factory and shipping it to a warehouse.
[….]Pearce's group found that making the items on a basic 3D printer took from 41 percent to 64 percent less energy than making them in a factory and shipping them to the U.S. - http://www.sciencedaily.com/releases/2013/10/131003132300.htm
3-D Printing Hits Fast Lane: Engineers Cut Time To 3-D-Print Heterogeneous Objects From Hours To Minutes - Nov. 20, 2013 — Researchers at the USC Viterbi School of Engineering have developed a faster 3D printing process and are now using it to model and fabricate heterogeneous objects, which comprise multiple materials. - http://www.sciencedaily.com/releases/2013/11/131120133741.htm
Loudspeaker Is First-Ever 3-D-Printed Consumer Electronic - Dec. 16, 2013 — Cornell University researchers have 3D printed a working loudspeaker, seamlessly integrating the plastic, conductive and magnetic parts, and ready for use almost as soon as it comes out of the printer.It's an achievement that 3D printing evangelists feel will soon be the norm; rather than assembling consumer products from parts and components, complete functioning products could be fabricated at once, on demand. - http://www.sciencedaily.com/releases/2013/12/131216142224.htm
Why 3D Printing Is The Future - (Infographic)
Lockpickers 3-D Print TSA Master Luggage Keys From Leaked Photos - (Sept. 9, 2015 - The TSA is learning a basic lesson of physical security in the age of 3-D printing: If you have sensitive keys—say, a set of master keys that can open locks you’ve asked millions of Americans to use—don’t post pictures of them on the Internet.A group of lock-picking and security enthusiasts drove that lesson home Wednesday by publishing a set of CAD files to Github that anyone can use to 3-D print a precisely measured set of the TSA’s master keys for its “approved” locks—the ones the agency can open with its own keys during airport inspections. Within hours, at least one 3-D printer owner had already downloaded the files, printed one of the master keys, and published a video proving that it opened his TSA-approved luggage lock. - http://tinyurl.com/qe8x3yt
3-D Printed 'Building
Blocks' Of Life -
(November 3, 2015 - Institute of Physics - ScineceDaily)
- Scientists have
developed a 3-D printing method capable
of producing highly uniform 'blocks' of embryonic stem cells. These cells
-- capable of generating all cell types in the body -- could be used as the 'Lego bricks' to build tissue constructs, larger
structures of tissues, and potentially even micro-organs. - http://tinyurl.com/p3ts9ed