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The Big Picture: Building an electric 'armored' car out of wood
If you think the coffee table you've been building in your spare time is pretty sweet, just wait until you get a load of what Liu Fulong has been making. The Shengyang, China resident recently finished his own electric armored car after four months of work, despite having no formal training in automotive design. As you might guess from the photo above, the "armored" label is based more on appearance than functionality. That wooden body probably wouldn't stop many bullets, and the missiles are purely cosmetic. But hey, the car underneath works -- Liu can get around at a respectable 30MPH (faster than his previous 20MPH project), and he factored in crucial elements like lights, mirrors and spare tires. Is this safe? Probably not, but it's proof that you don't need to be a wealthy entrepreneur to build your own eco-friendly ride. [Image credit: STR/AFP/Getty Images]
Homemade self-balancing unicycle uses an Arduino to keep upright
On the whim of a coin flip, Nick Thatcher once decided between building a homemade Segway, or a self balancing unicycle. Even though the powers of fate chose the former, Thatcher's thirst to build wasn't quenched -- he built the one-wheeled scooter anyway. The Raptor looks a lot like a Ryno unicycle built from spare parts -- a chain driven wheelbarrow wheel powered by a 350w geared motor, a pair of batteries wired in series, some PVC and polycarbonate, an IMU gyro and an Arduino UNO -- all hobbled together to form a one-wheeled electric mount. Thatcher says the scooter can push 10mph safely, but faster speeds tend to outpace the gyro's corrective efforts. Still, the bike promises between 90-120 minutes of face-plant free fun, provided the rider is at least a little balanced. The motorized unicycle isn't for sale, but peek on over to Thatch Industries for a parts list, or scoot on past the break to see the bike in action.
Jack Eisenmann's DUO Adept: a homebrew 8-bit computer built by a high-schooler (video)
We've seen some impressive case mods and some wildly inventive DIY projects, but rarely have we seen a homemade, 8-bit computer housed in what looks like a Tupperware container. Meet the DUO Adept: a project begun last summer by programmer, hardware hacker, and recent high-school graduate Jack Eisenmann. Lovingly crafted from a television, an old keyboard, 100 chips (not a single one more), and lots of wire, the system has 64K of memory and outputs a 240 × 208 black and white image. Eisenmann designed his own operating system and even wrote several games, including the Donkey Kong-esque "Get Muffin." Hit the source link for a gallery (including circuit diagrams!) and see the video below for a demonstration, complete with 8-bit era music.
RepRap prints transistors, but fabs have little to fear
Budding hobbyists almost have it too easy these days, what with all the ready-made components, Mindstorms and Arduino boards, but there's still a couple of folks out there kicking it old-school... and printing transistors at home. Yes, that's a RepRap 3D printer you see there, with a MakerBot Unicorn pen head, depositing tiny dots of silver ink to form intricate rows of tiny electrodes. Sadly, the printer doesn't currently automate the entire process, as you'll also need to separately apply a dielectric material and a host of chemicals to get a working field effect transistor from scratch, but once the basic process is perfected the possibilities, as they say, are endless. Now if you'll excuse us, we've got a hot date with some vacuum tubes. Find the basic formula for DIY transistors at our source link.
CoolerBot photographs nature, gets its power from it
If you're into real life bunny wabbits and other such wildlife, but not a fan of the cold, wet and windy outdoors, what do you do? We'd say just boot up the console and shoot you some pixelated peoples, but Steve Norris' idea might be just a tad more practical. He has authored the above mobile snap-station, which is equipped with an infrared video camera, a Nikon DSLR, and pairs of motors, 10Ah batteries, and solar panels. Power flows from the latter into the former to turn wildlife stalking into a pleasurable pastime for even the most indoorsy of folks. Video demonstration of the hardware after the break.
DIY VR Game Gun packs built-in motion tracking, optional mullet
Homebuilt motion controllers may be a fairly common occurrence these days -- especially with the Wiimote simplifying things considerably -- but this so-called "PC VR Game Gun" takes a slightly different approach than most, and has the added benefit of a pitchman firmly committed to selling it as the greatest thing since ShamWow. As you can see above, the rig consists of a toy gun with an LCD screen attached to it, but the real secret is a Gyration Air Mouse mounted on top, which allows for some full, seemingly responsive motion-tracking in any PC game. To really finish things off, our fearless modder also ripped apart a gamepad and wired it up to the trigger in the gun, which turns out to be just the thing for playing F.E.A.R.... on the highest difficulty setting. Must-see video after the break. Update: As helpfully pointed out in comments, there's now a wireless version of the Game Gun and, of course, a new video. Check it out after the break as well.
The not-so-portable portable GameCube
Ben Hartland's so-called handheld GameCube here isn't quite in the same league as the homebrew wonders from that other Ben, our hero Ben Heckendorn, (though really, what is?) but we've still gotta give him a few points for effort. Unfortunately, the biggest drawback is that it just ain't all that portable, basically consisting of a full-size GameCube console stuck on an over-sized but well-engineered controller and screen -- and made even less portable by the fact that you still have to plug it in. If you can live with that, following Ben's lead should cost ya about $370.[Via Joystiq]
