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In case you missed them the first time around, here are our most popular posts from the previous week: Our most read post is one about [Ben's] project where he created an electric motorcycle that has a range of 20 miles. This is a pretty comprehensive tutorial that goes into some good detail about what [...]

Tags:  Weekly case roundup ben electric-motorcycle news  

Nearly everyone has heard of phantom limb syndrome. It occurs sometimes after a limb is amputated, but the mind of the patient still thinks that the limb is attached. Generally regarded as a mix-up in the wiring of the damaged nerves, a phantom limb can be very painful. [Ben] has been working on a way to alleviate [...]

Tags:  limb everyone kinect ben phantom-limb-syndrome nerves kinect hacks  

Every once in a while, the Hack a Day tip line gets a submission that is cool, but screams to be built in a few hours, possibly while consuming adult beverages. When [Shay] and [Ben] sent in their Manifold Clock Kickstarter, I knew what I had to do. To make a long story short, there’s [...]

Tags:  manifold clock tutorial shay ben adult-beverages tip-line hacks  

If you’ve ever thought about extracting caffeine from coffee beans, [Ben] is the guy for you. The last time we ran into him, he had already produced a few aerogel monoliths with a few chemicals, pipe fittings, and some CO2. We’re guessing he needed another use for his supercritical drying chamber, so after looking over a few patents, [...]

Tags:  coffee caffeine home ben few-chemicals drying-chamber coffee-beans chemistry hacks  

[Ben] is showing off some results from his Software-Define Radio project. The board seen above, which he designed from the ground up, is receiving a WWV radio broadcast. This is the atomic clock signal from Fort Collins, Colorado. The audio heard in the clip after the break is a bit noisy, but since he’s about [...]

Tags:  radio defined scratch-built ben colorado fort-collins clock-signal radio-broadcast atomic-clock hacks  

[Ben] outdid himself. He successfully made monoliths of silica aerogel in his garage. Aerogel, the light-weight solid that has been referred to as ‘hard air’ is really freaking expensive especially in non-granulated form. The techniques behind producing aerogels have been on the Internet for a fairly long time. A few uncommon chemicals and a supercritical [...]

Tags:  aerogel silica home ben silica-aerogel aerogels monoliths chemistry hacks  

To test his new skills with his Arduino, [Ben] decided that he would build a robot. With no particular need to fill other than the need to build something cool he chose to build himself a tree climbing robot. He designed the body of the robot in Google Sketchup before beginning the build. The body [...]

Tags:  robot tree body ben arduino sketchup google hacks  

[Ben] needed an input device that would operate where electrical signals and magnetic fields wouldn’t be tolerated, so he ended up running fiberoptics instead of electricity to a mouse. [Ben] ran some glass fiber from the mouse to quadrature encoders to get the x and y velocity. Mouse clicks are read by modifying the existing buttons [...]

Tags:  fiberoptic input mouse ben stray-magnetic-fields y-velocity electrical-signals peripherals hacks  

Some people tend to get awfully attached to their favorite mug. Like an old friend, the mug holds a special place in their hearts, and there’s a weird sadness when it finally gives up the ghost. Through the winter months [Ben’s] girlfriend is never without hers, and when it broke, he decided to give her [...]

Tags:  temperature mouth mug ben old-friend sadness girlfriend led hacks  

Having never been any good with an Etch-a-Sketch, [Ben] decided it was time to tame the children’s toy that had taunted him for so long. He received one in a gift exchange a few years back and hung onto it, recently digging it out again to fit it with some CNC components. Using his RepRap, [...]

Tags:  sketch good cnc ben cnc-components etch-a-sketch gift-exchange hacks  

[Ben's] introduction to microcontrollers was this fun little gift he calls the “tilty cube”. It is an acrylic box with 3 LEDs mounted inside that changes color based off of how you tilt it. Sounds like a fun toy, and a good project to learn with. [Ben] chose the PIC12F615 as the brains and laid [...]

Tags:  fun cube tilty ben leds rgb brains led hacks  

[Ben] is getting himself up to speed with microcontrollers. He jumped into the deep end by taking on this Charlieplex LED matrix build. As you can see after the break, he not only made the display work, but coded Conway’s game of life to run on the ATtiny85 that drives the device. What you see [...]

Tags:  charlieplex board display ben board-layout game-of-life conway led hacks  

[Ben Nelson] turned his electric Geo Metro into a plug-in hybrid. But wait, where’d he get an electric Geo Metro? It seems that we’re one hack behind [Ben], who converted the vehicle to all electric back in 2008 using a forklift motor and some batteries. This time around he’s following the Chevrolet Volt’s example by [...]

Tags:  geo hacking metro ben-nelson ben chevrolet-volt geo-metro forklift green hacks  

[Ben Krasnow's] friends always want him to bring a fire extinguisher to their parties, not for safety reasons, but to quench their thirst. You see, [Ben] uses old fire extinguishers as kegs for his home-brewed beer. They’re not all that different from the Cornelius kegs that most home brew setups use; they’re intended to dispense liquids under [...]

Tags:  extinguisher fire safety cornelius ben-krasnow ben frothy-beverages home-brewed-beer krasnow beer hacks  

[Ben Heck] is in the Halloween spirit with his Portal inspired “see through” t-shirt. That is, a thin lcd is mounted on [Ben's] chest, with a not as thin camera mounted on his back; when the system is running, everything behind him is captured by the camera and displayed on the LCD. The concept isn’t [...]

Tags:  lcd camera portal ben-heck ben halloween-spirit t-shirt digital cameras hacks  

[Ben Kurtz] is doing a little WEP cracking but in a bit of a different way than we’re used to. WEP cracking makes us think of war driving; driving around with your laptop open, looking for WiFi access points, and stopping to run some software when you find them. [Ben's] way is similar but different [...]

Tags:  wep way take ben ben-kurtz war-driving kurtz access-points Wireless hacks  

[Ben's] added some nice goodies to his Volvo in the form of an in-dash computer. The system monitors two pressure sensors for boost and vacuum, as well as reading RPM, O2, and exhaust directly. All of this is tied into the touch interface running on an eeePC 900A. But our favorite feature is that the [...]

Tags:  pin car computer a.-but ben rpm touch-interface pressure-sensors car-computer transportation hacks  

[Ben] bought a remote starter for his car but needed a way to make sure the manual transmission was in neutral when starting. He built this infrared sensor frame to detect the position of the stick. It uses four beam paths which will tell him the exact gear or neutral position of the shifter. For [...]

Tags:  transmission gear sensor ben infrared-sensor remote-starter neutral-position transportation hacks  

[Ben's] father was a metalworker and the combination of being around metal fabrication for most of his life and getting a couple of art degrees brought together a satisfying combination of hacking skills. Above you can see a Graffiti Machine that he built, which we’ll look at in-depth after the break.. This isn’t the first [...]

Tags:  machine combination graffiti ben art-degrees metal-fabrication cnc hacks  

This video was on its way to a links post until we saw the game of chess right in the middle of it (bishop to H5). [Tom] and [Ben] put their Master of Manufacturing Engineering degrees to use by jam-packing every conveyance method possible into a Rube Goldberg machine. There’s violin bows, a polo mallet, [...]

Tags:  ftw goldberg rube tom ben rube-goldberg-machine rube-goldberg polo-mallet home hacks