3ders.org a great 3 D printing site has this up…..TUI, a space technology development company based in Bothell, WA is currently developing “SpiderFab” to provide order-of-magnitude packing- and mass- efficiency improvements over current deployable structures and enables construction of kilometer-scale apertures within current launch vehicle capabilities.
SpiderFab project (credit: Tethers.com)
Here is the TUI SpiderFab site
And remember this, Lego for the MIT set
Ars techica: NASA test-fires 3D printed rocket parts: low cost, high power innovation
Propulsion engineers focus on R&D and pushing new tech into private industry.
A 3D-printed injector plate delivers 20,000 lbs of thrust in a hot-fire test on August 22.
Fidelity is an issue with 3D printed parts, even using advanced techniques like DMLS. (direct metal laser sintering) Greg Barnett, the lead propulsion engineer on the project, … “The surface is a little rougher,” he explained; however, those variations are within a consistent range and can be compensated for in the design. …
The test results on the 3D printed components have been extremely positive; Barnett and Williams told Ars that the 3D printed injector is equivalent in performance to the traditional machined one. The next step is to move on to an injector with more elements, which will mean testing with more power.
3D printing—or “additive manufacturing,” as it’s called when you get industrial like this—is seen by NASA as a vital way to keep rocket component development costs down. In a lot of ways, the ability to rapidly prototype via DMLS harkens back to the Apollo-era development method of fast physical iteration. Rather than spending a tremendous amount of time performing deep, computer-based analyses of rocket components, NASA can rough in a design and then print and test a component within hours or days.
The deep analysis and simulation tools are still available and still used, but the months- or years-long physical manufacturing time is drastically reduced. This gives engineers the flexibility to design and build in the most optimal fashion. They can use complex software analysis where necessary, but they don’t have to rely solely on computer modeling.
In the days of Apollo, NASA operated with effectively unlimited funding, which it used to create a nation-wide army of contractors with tremendous manufacturing capabilities. Design-by-iteration was feasible because there was so much design going on. These days, the picture is entirely different. “It’s almost a cultural issue,” explained Williams, “where a part can cost so much, you get into what I call ‘analysis paralysis.'” Without additive manufacturing, prototype rocket parts that can withstand actual hot-firing can cost so much and take so long to produce that when you finally get a physical component to test, you’re already hoping the tests show that it’s perfect—otherwise it would take too long to redesign. With additive manufacturing, that paralysis goes away, and engineers can iterate as needed on actual physical components.
Ingenuity unleashed, development accelerated, designs simplified…the power of 3D printing.
When you think about it we’re built up from billions of smaller common modules with a lot of minor variations, why shouldn’t our infrastructure be the same?
MIT researchers have developed a lightweight structure whose tiny blocks can be snapped together much like the bricks of a child’s construction toy. The new material, the researchers say, could revolutionize the assembly of airplanes, spacecraft, and even larger structures, such as dikes and levees.
Assemblies of the cellular composite material are seen from different perspectives, showing the repeating “cuboct” lattice structure, made from many identical flat cross-shaped pieces.
PHOTO COURTESY OF KENNETH CHEUNG
Credit: © CC-BY-NC-SA Kenneth C. Cheung
Part production for reversibly-assembled cellular composite materials, slicing from stock produced by a multiplexed fiber winding method. Credit: CC-BY-NC-SA Kenneth C. Cheung
Test apparatus with reversibly-assembled cellular composite materials. Credit: © CC-BY-NC-SA Kenneth C. Cheung
If you can’t tell that last picture is a load cell, an instrument for applying precisely controlled loads to CRUSH YOUR ENEM…. uh, I mean… test the strength of a part or structure.
Read more at:MIT
or at: 3Ders
Obviously the MIT press piece is the base, but the others each have a little different insight.
Two pieces, on Japanese one Chinese on Orthopedic uses of 3D Printed parts. Like the rocket engine parts mentioned earlier these parts are laser sintered Titanium.
Japanese patients successfully received 3D printed bone transplants
Chinese hospital uses 3D printed orthopedic implants
Dynetics reporting “outstanding” progress on F-1B rocket engine
The prototype components were constructed not with welding and casting, but rather with selective laser melting—a 3D printing technique that uses hot lasers to fuse metal powder into complex shapes. Dynetics and Pratt Whitney Rocketdyne hope to lean heavily on advanced manufacturing techniques like this in order to massively reduce the part count—and hence cost—of the F-1B engine compared to its F-1 predecessor. Current estimates call for a reduction in the combustion chamber from more than 5,000 parts in the F-1 to fewer than 100 parts in the F-1B.
OK I loathe the senate taxripoff system (STS), otherwise known as the space transportation system, but this is absolutely cool. I have to say NASA engineers and scientists have done a lot of really great and innovative stuff, even in these tough times, but as an exploratory risk taking organization…..well they’re a bunch of engineers and scientists lead by bureaucrats and directed by politicians . . . what more is there to say?
(left) The original horse model does not stand on its hind legs and requires using the tail as a third support. (right) The optimizer deforms the horse to make it stand on a single hind leg.
Read more at | Make It Stand: balancing shapes for 3D printing
Neat tool for helping you creat your own cool artworks.
…NASA didn’t use ABS plastic that most 3D-printers use. Instead, the agency used custom 3D printers to spray layers of metallic powder using lasers. The lasers spray the powder in a specific pattern in order to come up with the desired shape for an object. In this case: a rocket engine injector.
Read more at: Slash/Gear http://www.slashgear.com/nasa-3d-printed-rocket-injector-undergoes-first-test-firing-12290238/
Is Sony the Next Apple?
By Leo Sun – June 26, 2013
There is a lot of evidence suggesting that Cook doesn’t know where to go from here – Apple’s stock buyback, dividend, and bond sale all indicate that the company could become a slow-growth tech stock like Microsoft and IBM. The iPad Mini and iOS 7 also suggested to investors that the road ahead would be reactionary, rather than revolutionary.
… Sony has expanded into is the phablets category, … a 6.4-inch screen …seriously pushing the acceptable size limit of a smartphone.
Although the Ultra seems like a goofy attempt to capture some of the phablet market from Samsung, I believe that it could gain some serious ground when used in tandem with the SmartWatch 2 and a Bluetooth headset. Many consumers could stow the Ultra in a bag, while using the SmartWatch to check on basic information and tasks while using a Bluetooth headset to make calls or listen to music. To view movies, make video calls or games, the Ultra could be brought out and used like a normal tablet.
I’m no sure Apple has lost it’s mojo but I agree there is evidence of it.
I think that the latest iteration of blue tooth and general tech advances definitely plays to the padPhone+smartWatch+headSet combo and maybe, maybe Apple missed it.
Apple IMO also has missed the stylus revolution, pads of all sizes need sophisticated hand writing, sketch, art input capability to jump another level of ubiquitous usefulness.
I hope Apple is looking at things like 3D Printing, scanning and model manipulation and creation, in the same way they took on the 2D Printing world, there would be a real break out stroke.
According to Optomec, Aerosol Jet printing utilizes aerodynamic focusing to precisely deposit nanomaterials to produce fine feature circuitry and embedded components without the use of masks or patterns. The resulting functional electronics can have line widths and pattern features ranging from 10’s of microns to centimeters.
Read more at: http://www.3ders.org/articles/20130531-optomec-is-3d-printing-antennas.html
The combination of 3D printing and Materials Technology, particularly the ‘nanoscale’ materials or the materials we now understand at atomic scale, is changing the world more quickly than some see. It is not always obvious because in the end the devices are not that different than what came before, just better, smaller, longer lasting, stronger, etc. over a relatively short time it is amazing what small increments of change, multiplied by thousands of applications and dozens of iterations, can build up to.