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Collin Graver and his Wooden Bicycle (Video) 70

Posted by Roblimo
from the we'll-stick-to-our-metal-bikes-for-the-moment-thank-you dept.
This is not a practical bike. "Even on smooth pavement, your vision goes blurry because you're vibrating so hard," Collin said to an Atlanta Journal-Constitution reporter back in 2012 when he was only 15 -- and already building wooden bicycles. Collin's wooden bikes are far from the first ones. Wikipedia says, "The first bicycles recorded, known variously as velocipedes, dandy horses, or hobby horses, were constructed from wood, starting in 1817." And not all wooden bicycles made today are as crude as Collin's. A Portland (OR) company called Renovo makes competition-quality hardwood bicycle frames -- for as little as $2200, and a bunch more for a complete bike with all its hardware fitted and ready to roll.

Of course, while it might be sensible to buy a Renovo product if you want a wood-framed bike to Race Across America, you won't improve your woodworking skills the way Collin's projects have improved his to the point where he's made a nice-looking pair of wood-framed sunglasses described in his WOOD YOU? SHOULD YOU? blog. (Alternate Video Link)

3D Printed Art Smaller Than an Ant's Forehead 35

Posted by timothy
from the my-usual-measure-is-a-newt's-nostril dept.
ErnieKey (3766427) writes Artist Jonty Hurwitz has created the world's smallest sculptures: nanosculptures, no wider than a human hair and unable to be seen without an electron microscope, created using a specialized 3D printing process. Hurwitz says this project was 'Art, literally created with Quantum Physics.' While this seems quite a claim, it seems to be very well deserved. Hurwitz enlisted a team of approximately 15 people to help him bring his vision to life. After scanning his models in a 200-camera array, the sculptures were printed — with advice from the Weizmann Institute of Science — using a 3D print technique by the Institute of Microstructure Technology at the Karlsruhe Institute of Technology, with multiphoton lithography used for the fine detail work.

Low Cost Ground Robot Chassis That Can Traverse Challenging Obstacles 38

Posted by timothy
from the how-does-it-fare-against-angry-toddlers? dept.
Hallie Siegel writes In order for a robot to be useful in our world, it must be able to traverse unpredictable obstacles, including stairs. But currently available robot chassis tend to be either too small or extremely expensive, and most platform kits cannot leave a controlled environment – a huge problem for makers who want to get outside the lab or workshop. This has been an extremely hard problem for roboticists to solve, but the Ground Drone Project wants to change all that with its low-cost ground robot chassis. Check out this innovative design. (Currently, the project is raising money through Kickstarter; if it succeeds, "the instructions and bill of materials will be available for all.")

Real Steampunk Computer Brought Back To Life 81

Posted by timothy
from the malware-free dept.
New submitter engineerguy writes We discovered a 100 year old 19th century computer that does Fourier analysis with just gears spring and levers. It was locked in a glass case at the University of Illinois Department of Mathematics. We rebuilt a small part of the machine and then for two years thoroughly photographed and filmed every part part of the machine and its operation. The results of this labor of love are in the video series (short documentary), which is 22 minutes long and contains stunning footage of the machine in action — including detailed descriptions of how it operates. The photos are collected in a free book (PDF). The computer was designed by Albert Michelson, who was famous for the Michelson-Morley experiment; he was also the first American to win a Nobel Prize in physics.

Maker Joe is a 'Maker' Sculptor (Video) 16

Posted by Roblimo
from the I-sculpt,-therefore-I-am dept.
Joe Gilmore was showing some of his work at Maker Faire Atlanta when Timothy Lord pointed his camera at him. Joe may never create a Mars colony or build the tallest skyscraper in North America, but what he does is fun to the point of whimsy, and seems to bring smiles to a lot of faces. (Alternate Video Link)

Researchers Develop $60 Sonar Watch To Aid the Visually Impaired 30

Posted by samzenpus
from the daredevil-watch dept.
Taffykay writes Biology and computer science students and professors at Wake Forest University have teamed up to develop a device to assist the visually impaired. Following the principles of echolocation used by bats and moths, the interdisciplinary team has developed a watch-like unit that allows the wearer to navigate their environment using sonar. To make the project even more remarkable, all the parts and materials for the prototype cost less than $60.

SatNOGS Wins the 2014 Hackaday Prize For Satellite Networked Open Ground Station 21

Posted by samzenpus
from the king-of-the-hill dept.
szczys writes SatNOGS has won the 2014 Hackaday Prize. The team of developers designed a satellite ground station which can be built with available tools, commodity parts, and modest skills. Data from each station can be shared via a networked protocol to benefit a much wider swath of humanity than one station could otherwise accomplish.

HYREL 3-D Printers Were Developed by 3-D Printer Users (Video) 55

Posted by Roblimo
from the we-aren't-going-to-excited-by-a-printer-again-until-we-see-a-4d-one dept.
HYREL 3-D had a display Timothy spotted at last month's Maker Faire Atlanta. They're not trying to hustle Kickstarter donors; they exceeded their $50,000 goal by over $100,000. Their main pitch was (and still is) that they are making high-reliability 3-D printers that can run many hours without breaking. Project spokesperson Daniel Hutchison says he and other people he knows who were making prototypes and short-run parts in the Atlanta area were continually disappointed by the poor reliability of available 3-D printers, which is why they decided to make their own. Open Source? Somewhat, partially, kind of... but they have a bunch of proprietary secret sauce in their software, too. Daniel goes into this in more detail in the video, so there's no need for us to repeat his words when you can hear them (or read them in the transcript) for yourself. (Alternate Video Link)

Eben Upton Explains the Raspberry Pi Model A+'s Redesign 107

Posted by samzenpus
from the straight-from-the-horses-mouth dept.
M-Saunders writes It's cheaper, it's smaller, and it's curvier: the new Raspberry Pi Model A+ is quite a change from its predecessor. But with Model Bs selling more in a month than Model As have done in the lifetime of the Pi, what's the point in releasing a new model? Eben Upton, a founder of the Raspberry Pi Foundation, explains all. "It gives people a really low-cost way to come and play with Linux and it gives people a low-cost way to get a Raspberry Pi. We still think most people are still going to buy B+s, but it gives people a way to come and join in for the cost of 4 Starbucks coffees."

Raspberry Pi A+ Details Leaked 141

Posted by Soulskill
from the A+-would-pi-again dept.
mikejuk writes Despite trying to keep it secret, a major Raspberry Pi retailer has published some details of the upcoming model A+ Raspberry Pi thanks to a product page that went live early. The board layout looks different and is much smaller than the model A or B+. Judging from the photograph, the A+ board encompasses the four standard mounting holes, which makes it approximately 56x65mm — the model B+ is 56x85mm.

The key improvement is the new 40-pin GPIO socket, which makes the model A+ fully compatible with the HAT expansion standard. This means that any new HAT expansion cards should now work with the A+. It also has what's likely a connector for the yet-unreleased Raspberry Pi touchscreen. Another welcome change is the micro SD slot. One downside of the A+ is that it still has only a single USB 2 connector.

Start-Up Vsenn Emerges From Stealth With Project Ara Modular Phone Competitor 30

Posted by timothy
from the stick-'em-up-I-mean-together dept.
MojoKid writes When Phonebloks visionary Dave Hakkens began evangelizing the idea of a modular phone with interchangeable components, many scoffed at the idea saying it couldn't be done or wasn't commercially feasible, that is until Google stepped up and backed a team of engineers for Project Ara. Ultimately, Project Ara's proof of concept efforts bore fruit and the vision is quickly becoming reality, now with apparently new competitors entering the fray. A start-up company by the name of Vsenn has come out of cover to disclose its intention to start a "smartphone evolution" and it also turns out that company has been co-founded by a former Nokia Android X Program Manager. The company also makes some lofty promises and has set big goals, noting not only modular hardware design but "guaranteed updates, maximum security and customizable looks." From encryption to secure VPN cloud services and back covers that are easily changed out, Vsenn seems to be targeting not only "Phonebloks-style" modularity and customizations like Project Ara but also some of the secure device and communication hot buttons that both Apple and Google have been acting on as of late with iOS and Android Lollipop.

Low-Cost 3D-Printed Prosthetic Hand To Be Tested On Amputees In Ecuador 16

Posted by samzenpus
from the we-can-print-him-better dept.
Zothecula writes A PhD candidate and six undergraduate students at the University of Illinois at Urbana-Champaign (UCIC) have created a low-cost, programmable, 3D-printed prosthetic hand that may soon change the lives of amputees in Ecuador. The hand costs just $270 to manufacture, making it a small fraction of the cost of a typical prosthetic of this type.
The Internet

LibraryBox is an Open Source Server That Runs on Low-Cost Hardware (Video) 47

Posted by Roblimo
from the share-thousands-of-books-no-matter-how-far-you-are-out-in-the-boonies dept.
The world is full of wireless servers -- or at least some of it is. There are still many places, including parts of the United States, where you can have all the laptops, smart phones, and other wireless-capable devices you want, but there's no server that caters to them. Enter LibraryBox. It's open source and it runs on a variety of low-cost, low-power hardware. The project's website calls it "portable private digital distribution."

A lot of people obviously like this project and wish it well. LibraryBox ran a Kickstarter campaign in 2013, hoping for $3000, and raised $33,119. But today's interviewee, Jason Griffey, can explain his project better than we can, so please watch the video (or read the transcript) if you want to learn more about LibraryBox -- including the story behind the project's name. (Alternate Video Link)

Michelle Sleeper Creates 'Gaming, Comics, and Pop Culture Based Props' 35

Posted by Roblimo
from the add-one-part-3-d-printing-to-three-parts-imagination-and-you're-good-to-go dept.
If you go to a sci-fi or gaming convention you'll see people in exotic "character" costumes, often holding exotic props, with some of the most popular being futuristic firearm mockups of one sort or another. Who makes all these cool fannish items? A whole bunch of artists and artisans, including Michelle Sleeper (who says she got tired of jokes about her name many years ago). She's not only one of these artisans, but is also a committed 3-D printer user, since 3-D printing is how she forms a high percentage of her props (with the word "props" being used here in the theatrical rather than the nautical sense). To keep up with what Michelle is making, you should check her blog. One of her most interesting posts, titled Atlanta Mini Maker Faire: On missing deadlines, failure, and triage, is about preparing for the event where Timothy Lord met and interviewed Michelle.

Even if gamer gatherings and SF conventions aren't your thing, the interview (along with the links above) gives a nice glimpse into the life of an independent artisan who uses technology to create a lot of her art. (Alternate Video Link)

HP Unveils Industrial 3D Printer 10X Faster, 50% Cheaper Than Current Systems 111

Posted by samzenpus
from the brand-new dept.
Lucas123 writes HP today announced an 3D industrial printer that it said will be half the cost of current additive manufacturing systems while also 10 times faster, enabling production parts to be built. The company also announced Sprout, a new immersive computing platform that combines a 23-in touch screen monitor and horizontal capacitive touch mat with a scanner, depth sensor, hi-res camera, and projector in a single desktop device. HP's Multi Jet Fusion printer will be offered to beta customers early next year and is expected to be generally available in 2016. The machine uses a print bar with 30,000 nozzles spraying 350 million drops a second of thermoplastic or other materials onto a print platform. The Multi Jet Fusion printer uses fused deposition modeling, an additive manufacturing technology first invented in 1990. the printer works by first laying down a layer of powder material across a build area. Then a fusing agent is selectively applied with the page-wide print bar. Then the same print bar applies a detailing agent at the parts edge to give high definition. The material is then exposed to an energy source that fuses it.

Remote Vision Through a Virtual Reality Headset (Video) 44

Posted by Roblimo
from the it-looks-much-better-over-there-than-it-does-here dept.
Add some material-handling devices and you'd have software-controlled Waldos, first described by Robert A. Heinlein in the 1942 short story titled Waldo. So while the idea of a pair of artificial eyes you control by moving your head (while looking at the area around the artificial eyes, even if it's in orbit), sounds like futuristic fun, especially if you use an Oculus Virtual Reality device instead of an LED screen, it not only hasn't caught up with science fiction, but is a fair ways behind science fact. Still, the idea of being able to control a vision system deep under the sea or in orbit around Saturn is certainly interesting in and of itself. (Alternate Video Link)

XYZPrinting Releases All-In-One 3D Printer With Internal Laser Scanner 46

Posted by timothy
from the all-in-one-gets-a-new-factor dept.
Lucas123 writes XYZPrinting today released the first 3D printer with embedded scanner that has the ability to replicate objects between 2-in and 6-in in size and print objects of up to 7.8-in square from .stl files. The printer's retailing for $799. A review of the new da Vinci 1.0 AiO all-in-one 3D printer revealed the 3D scanning capability, which is supposed to have a .05mm resolution, captures overall size and some finer features of an object but it falls short when it comes to precise details; thin protrusions and through-object holes are often missed in a scan. The mechanics — the printing head, two laser scanning/camera pods and turntable, and the motorized print table — are fully enclosed in a sleek-looking blue and white cubical case with a large transparent, hinged-front door. The front of the printer has a simple push button keypad for traversing a menu on a 2.6-in LCD black-and-white display. The printer is about 18-in. x 20-in. x 22-in. in size and weighs 60.6 lbs. While this is a desktop printer, it takes up a sizeable amount of room on your desk. It can print with either ABS or PLA thermopolymer.

Ask Slashdot: How Do I Make a High-Spec PC Waterproof? 202

Posted by Soulskill
from the lots-of-duct-tape dept.
jimwormold writes: I need to build a system for outdoor use, capable of withstanding a high pressure water jet! "Embedded PC," I hear you cry. Well, ideally yes. However, the system does a fair bit of number crunching on a GPU (GTX970) and there don't appear to be any such embedded systems available. The perfect solution will be as small as possible (ideally about 1.5x the size of a motherboard, and the height will be limited to accommodate the graphics card). I'm U.K.- based, so the ambient temperature will range from -5C to 30C, so I presume some sort of active temperature control would be useful.

I found this helpful discussion, but it's 14 years old. Thus, I thought I'd post my question here. Do any of you enlightened Slashdotters have insights to this problem, or know of any products that will help me achieve my goals?

Building All the Major Open-Source Web Browsers 106

Posted by Soulskill
from the who-needs-packages dept.
An anonymous reader writes: Cristophe de Dinechin, long-time software developer, has an interesting article on the processes involved in building the major browsers. From the article:

"Mozilla Firefox, Chromium (the open-source variant of Chrome) and WebKit (the basis for Safari) are all great examples of open-source software. The Qt project has a simple webkit-based web browser in their examples. So that's at least four different open-source web browsers to choose from. But what does it take to actually build them? The TL;DR answer is that these are complex pieces of software, each of them with rather idiosyncratic build systems, and that you should consider 100GB of disk space to build all the browsers, a few hours of download, and be prepared to learn lots of new, rather specific tools."

The bugs you have to avoid are the ones that give the user not only the inclination to get on a plane, but also the time. -- Kay Bostic