Communications

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

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.
Build

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

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)
Education

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

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."
Build

Raspberry Pi A+ Details Leaked 141

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.
Android

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

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.
Medicine

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

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

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

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)
Sci-Fi

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

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

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

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.
Technology

Video Remote Vision Through a Virtual Reality Headset (Video) 44

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)
Printer

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

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.
Build

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

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?
Chromium

Building All the Major Open-Source Web Browsers 106

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."
Build

Video A Low Cost, Open Source Geiger Counter (Video) 46

Sawaiz Syed's LinkedIn page says he's a "Hardware Developer at GSU [Georgia State University], Department of Physics." That's a great workplace for someone who designs low cost radiation detectors that can be air-dropped into an area where there has been a nuclear accident (or a nuclear attack; or a nuclear terrorist act) and read remotely by a flying drone or a robot ground vehicle. This isn't Sawaiz's only project; it's just the one Timothy asked him about most at the recent Maker Faire Atlanta. (Alternate Video Link)
United Kingdom

U.K. Supermarkets Beta Test Full-Body 3D Scanners For Selfie Figurines 165

Lucas123 writes Walmart-owned ASDA supermarkets in the U.K. are beta testing 3D full-body scanning booths that allow patrons to buy 6-in to 9-in high "selfie" figurines. Artec Group, a maker of 3D scanners and software, said its Shapify Booth, which can scan your entire body in 12 seconds and use the resulting file to create a full-color 3D printed model, is making its U.S. debut this week. The 3D Shapify booths are equipped with four wide view, high-resolution scanners, which rotate around the person to scan every angle. Artec claims the high-powered scan and precision printing is able to capture even the smallest details, down to the wrinkles on clothes. The scanning process generates 700 captured surfaces, which are automatically stitched together to produce an electronic file ready for 3D printing. Artec offers to print the figurines for booth operators (retailers) for $50 for a 6-in model, $70 for a 7.5-in model, and $100 for a 9-in figurine.
Displays

Raspberry Pi Founder Demos Touchscreen Display For DIY Kits 81

An anonymous reader writes: Over 4 million Raspberry Pis have been sold so far, and now founder Eben Upton has shown off a touchscreen display panel that's designed to work with it. It's a 7" panel, roughly tablet sized, but slightly thicker. "With the incoming touchscreen panel The Pi Foundation is clearly hoping to keep stoking the creative fires that have helped drive sales of the Pi by slotting another piece of DIY hardware into the mix." Upton also discussed the Model A+ Raspberry Pi board — an updated version they'll be announcing soon.
Build

Video The Bogus Batoid Submarine is Wooden, not Yellow (Video) 44

This is a "wet" submarine. It doesn't try to keep water out. You wear SCUBA gear while pedaling it. And yes, it is powered by a person pushing pedals. That motion, through a drive train, makes manta-style wings flap. This explains the name, since rays are Batoids, and this sub is a fake Batoid, not a real one. It's a beautiful piece of work, and Martin Plazyk is obviously proud to show it off. He and his father, Bruce, operate as Faux Fish Technologies. Follow that link and you'll see many photos, along with a nice selection of videos showing their creations not just in static above-water displays, but in their natural (underwater) element. Meanwhile, here on Slashdot, Martin tells how Faux Fish subs are made. (Alternate Video Link)
Medicine

3-D Printed "Iron Man" Prosthetic Hands Now Available For Kids 64

PC World (drawing on an article from 3DPrint.com) notes that inventor Pat Starace has released his plans for a 3-D printable prosthetic hand designed to appeal both to kids who need it and their parents (who can't all afford the cost of conventional prostheses). The hand "has the familiar gold-and-crimson color scheme favored by Ol' Shellhead, and it's designed with housings for a working gyroscope, magnetometer, accelerometer, and other "cool sensors", as well as a battery housing and room for a low-power Bluetooth chip and charging port." It takes about 48 hours in printing time (and "a lot" of support material), but the result is inexpensive and functional.

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