[Experimental Fun] shows us how you can produce a cola power generator that runs on nothing a lot more than cans of cola including the container and a little bit of sodium hydroxide to speed the reaction up.

This might sound a bit crazy, however it seems you can power an engine on little a lot more than your favorite fizzy drink as well as the cut-up remains of an aluminum can. What happens is that aluminum as well as water produce a chemical reaction when mixed together, which gives off hydrogen. usually this reaction is very slow as well as would take years to make any type of obvious marking on the aluminum, however with a little help from sodium hydroxide the reaction is sped up to such a rate that hydrogen is produced quite quickly.

The crazy contraption they created has a reaction chamber which then feeds the hydrogen through condenser then to a bubble filter made from a bottle filled with water. after that it is on through a carbon filter to get rid of any type of impurities, as well as finally it is fed directly into a two-stroke engine’s fuel line. then engine still needs an electric start from a battery, however after that it runs directly on the hydrogen created during the reaction from the chamber.

This is quite a awesome project, however you might replace the fizzy drink with water as well as still get the desired effect. considering that the drink comes with the aluminum cans it seems like quite a good fuel though. There are other crazy fuels out the for the avid diy hacker, however just be cautious as well as don’t strike yourself up.

It is remarkable exactly how the game Doom has been ported to so lots of things. go into one a lot more port, where the hardware in concern is a Honeywell Prestige thermostat.

In his video, [cz7asm] shows us the game running rather well on the 480 x 272 LCD with an NES controller plugged into the USB port originally meant for software application updates. The thermostat runs on a STM32F429 which is an ARM9 processor that has the juice to pull it off. The Doom engine being utilized is based on chocolate Doom, an open source port of the game, as well as the binaries can be downloaded for Windows and Mac. The source code is likewise offered as a download for your tinkering pleasure. This job by [cz7asm]  is prolonged from a code on GitHub by [floppes] that was indicated for the STM32F429IDISCOVERY examination board.

The author shares his code for the STM32F4 on Dropbox as a zip and in buy to compile it, the Atmel BSP for GNU GCC is used. The video below demonstrates the hack in action and, though there is no noise yet, the fulfillment that comes from such adjustments is its own reward.

What else can you run Doom on? exactly how about a calculator or perhaps the Intel Edison or even an ATM machine! If there is a processor with sufficient muscle mass power, hackers will discover a method to run Doom on it. So have you seen any type of alien computers lately that you believe can be hacked?

Yeah, I understand Engadget is F@H now. I doesn’t bother me since we’re already sitting at #175 as well as are top 20 producers. If you requirement assist troubleshooting your configuration inspect out the unofficial team Hack-A-Day Folding@HOME forum. [pocketlnt]

speaking of Engadget: Did you see the low tech tea serving automata? You can develop one completely out of paper. [Manion]

Linux kernel 2.6.14 release effects almost every architecture. great deals of great stuff has been merged like Centrino support as well as FUSE filesystem (think GmailFS). I’d be around this, however still no Reiser4.

I hope somebody provides [Peter] a appropriate rotary tool as a present. perhaps his future jobs won’t look as gnarly as his CD player iPod disguise.

Modifying a Dell PowerEdge SC420 to accept a 16X PCI-E video card [h-tech]

[dcgrendel] composed some dhtml to produce VMware .vmx config files.

Xbox-scene has some information on Xbox 360 security measures. [SilverX]

SnakeOil Labs has a couple how-tos up. setting up FreeNX on Ubuntu as well as utilizing Firefox with SwitchProxy.

[Alex Harris] has written up his experience installing Linux on his 2G iPod mini.

Live Knoppix CD for running a PPC as well as x86 distributed compiler (distcc) [Corey]

[John Bokma]’s experience making an XP pro VM for the VMware player

[sle118] has an autoassociate script for WRT client mode.

Have a great weekend as well as we can always utilize great tips.

following the time-honored YouTube tradition of ordering cheap stuff online and playing with it while the camera runs, [Monta Elkins] bought a Stirling engine that drives a DC motor used as a generator. how much electrical juice can this thing provide, running on just denatured alcohol? (Will it blend?)

The answer is probably not really a spoiler: it generates enough to run “Blink.ino” on a stock Arduino, at least when powered directly through the 5 V rail. [Monta] recorded an open-circuit voltage of around 5 V, and a short-circuit current of around 100 mA at a measured few hundred millivolts. While he didn’t log enough of the points in-between to make a real power curve, we’re guessing the generator might be a better match for 3.3 V electronics. The real question is whether or not it can handle the peaky demands of an ESP8266. serious questions, indeed!

The video is a tad long, but it’s more than made up for by the sight of an open flame vibro-botting itself across his desk while [Monta] is trying to cool the cold side down with a melting ice cube. Which got us thinking, naturally. If you just had two of the Stirling engines…

[Radu] spend the very first part of this year building as well as improving upon this wireless rover project. It’s really the second generation of an autonomous follower job he started a few years back. If you search with his old postings you’ll discover that this version is leaps as well as bounds ahead of the last.

He bought the chassis which likewise came with the gear-head motors as well as tires. Why reinvent the wheel (har har) when you’ve got bigger things on your plate? To make sufficient space inside for his own goodies he started out by ditching the manage board which came with the Lynxmotion chassis in favor of an AVR ATmega128 advancement board. He likewise selected to utilize his own motor controller board. next he added a metal bracket system to hold the battery pack. things begin to get quite congested in there when he installed his own Bluetooth as well as GPS modules. Rounding out his hardware additions were a set of five ultrasonic sensors (the grey tubes on top), a character display, in addition to head as well as tail lights. The demo video shows off the manage app he uses. We like that tic-tac-toe style for movement control, as well as that he added in buttons to manage the lights.

Your refrigerator needs a few inches of space on the hinge side in purchase for the door to open fully. If there’s a wall on that side it implies you leave a gap. A bit of lumber and some economical hardware can turn that gap into a pull-out pantry.

This picture is from [Ratmax00’s] pantry project. He had a 6.5″ gap to work with and started the build by making a wooden frame using pocket screws for the butt joints. four casters were added to the bottom to make it roll in and out easily. He needed a deal with and a way to make sure commodities didn’t fall off the shelves. He chose to use a 3D printer for brackets that hold the fence dowels and a customized handle. If you don’t have that just hit the cabinet hardware aisle at your local home store.

We wonder if it would have been possible to use full-extension draw rails mounted above and below the cabinet in addition to a couple of wheels? This would help keep the pantry from scraping against the fridge or the wall.

While you’re building bookshelf sized things why not get to work on a hidden door as well?

At the end of every semester, we get a bunch of amazing and well-documented trainee jobs from Cornell’s ECE4760 class. [Scott] and [Alex]’s infrared theremin is no exception.

The classic theremin design employs each of the player’s hands as the grounded plate of a variable capacitor in an LC circuit. For the pitch antenna, this circuit is part of the oscillator. For the volume antenna, the hand capacitor detunes another oscillator, changing the attenuation in the amplifier.

[Scott] and [Alex] put a twist on the theremin by utilizing two IR sensors to manage volume and pitch. The sensors compute the place of each hand and output a voltage inversely proportional to its distance from the hand. An ATMega1284P converts the signal to an 8-bit binary number for processing. They developed four voices into it that are accessible with the push-button switch. The different voices are produced with wave combinations and modulation effects. In addition to classic Theremin, you can play in pure sine, sawtooth, and FM modulation.

If you’re just not that into microcontrollers, you could build this digital IR theremin instead. If you find IR theremins soulless or plebeian, try this theremincello.

[Thanks Bruce]

Here’s one of those ideas that makes us wonder: “Why didn’t we come up with that?” The LVL1 in Louisville, Kentucky is hosting an event they call the Quadcopter ultimate Aerial combat competition (QUACC). Kudos to them on coming up with a very professional name for the event. At risk of drawing cease-and-desist orders from the defunct TV program, we’ll always think of this as Battlebots in the Sky. (Lawyers: please don’t make us take that down… it’s an homage to the awesomeness that was at least the first few seasons of the show).

So why are we publicizing local events on Hackaday? It’s not the event, but the idea that’s spectacularly worth sharing! You’ve got to check out their contest rules as well as the Q&A list. Registration is closed, but the lucky ones who claimed a spot for the low price of $40 will be issued a regulation quadcopter today. They have a week to play around with it, testing out different ideas for disabling their enemy. A match ends when either one competitor defeats the other, or when a competitor’s battery runs dry. A new battery is the issued to the winner for use in the next round.

We’d love to hear your ideas for weaponizing (or adding countermeasures to) these delicate, lightweight aircraft. Aerosol accelerant and a BBQ igniter? how about shielding and a type of EMP, or some other system that will disrupt controller commands of your opponent? obviously if you launch a similar competition at your hackerspace we want to hear about it!

[Thanks Gerrit]

even with ABS, PLA, Nylon, HIPS, as well as a lot of Taulman filaments, the world of 3D printers is missing out on a excellent supply of spools of plastic filament. Plastic welding rod is offered from just about every plastics supplier, as well as in a lot more range than even the most well-stocked filament web shop.

This Kickstarter hopes to put all those exotic plastic welding rods to great use. instead of being created to only utilize 1.75 as well as 3mm filaments, this guy will extrude welding rods up to 4.76mm in diameter. This opens the door for 3D printed objects constructed out of PDPF, PVC, Polypropylene, Polyethylene as well as other high molecular weight plastics.

Because these welding rods are much bigger than the normal plastic filament, this extruder likewise has the choice for a extremely beefy NEMA 23 motor. It’s the best option if you’re planning on building a homebrew ludicrous-sized printer, or you just to show off just exactly how incredible you are.

[SJM4306] grabbed a used PlayStation 3 from a game store that was going out of business. He got a pretty good deal on what had undoubtedly been the floor model for a number of years. The one real problem was the controller that came with it. The thing was so unclean that he literally used gloves to disassemble and sanitize it. It worked just fine after that,until he discovered that it wouldn’t charge from the USB port as it’s meant to. but he managed to replace the charging circuitry with some of his own.

When cleaning the insides of the controller he found there were numerous deposits of sludge which he qualities to spilled soda. This need to have damage one of the chips responsible for charging because he was probing an unstable 2V rather than the regulated 5V which must be coming in on the USB lines. His option was to desolder the USB port in buy to separate its 5V pin from the PCB. He then etched a tiny board to host a MAX1555 charging IC. With the new hardware in place the controller is back in action.