Static Bleeder

December 17, 2009 by Caleb Kraft 31 Comments

When you are in the middle of the desert, pretty much every solution to a mechanical or electrical problem is a hack. [Sgt.M] who was deployed in Iraq sought out the help of radio guru [H.P. Friedrichs] about a static problem he was having. When dust storms would blow in strange things would happen in camp. Humming and crackling could be heard and [Sgt. M] actually had an electrical arc from a lamp to his hand at a distance of about 2 feet.

[Friedrichs] helped him find the problem. Their antennae were acting as static electricity collectors in the dust. All that dust friction in the dry air constantly built up a charge. The solution was simple, discharge the electricity at the antenna when it isn’t in use. Several solutions are outlined on the page, so check them out.

Make Magazine – Open Source Hardware 2009

December 15, 2009 by James Munns 5 Comments

Former HaD’er [Phillip Torrone] has written an extensive collection of Open Source Hardware projects for Make Magazine. This impressive list covers over 125 projects and kits, broken into 19 categories including 3d Printing, Music, Robotics, and Wireless systems. A number of these projects have been either extensively detailed or mentioned on HaD, so there is bound to be something for everyone here.

[Phillip] is not only detailing these projects for people new to the Open Source Hardware movement, but is also calling for new and unheard of projects to be listed in places like this, as well as central locations such as the OSH Wikipedia page. We are sure that a number of HaD readers will be answer this challenge.

Thanks again to [Phillip] for sharing this with us.

New Pet, Project 413

December 14, 2009 by Jakob Griffith 23 Comments

I wonder if anyone ever mouses over images anymore. Oh silly me, xkcd reference.

[Jacob] sent in his teams final project, Project 413. While sounding like something straight out of an action movie, don’t worry, it’s not the next terminator. Rather a combination of an eBox (in place of an EEE pc), omni wheels, motors, batteries, and the finishing touch – a hamster ferret ball. If this is sounding familiar to a certain web comic, then right you are, as XKCD was their main inspiration. Sadly, the web cam and ‘having a soul’ functions didn’t make it into their version, but being controlled via Wii remote is always a plus. Check out a video after the break. Continue reading “New Pet, Project 413” →

FPGA Driver For PSP Screen

December 12, 2009 by Mike Szczys 20 Comments

Friends are constantly giving us their old electronics. We love it because our junk box is a never-ending pile of possibilities. We’re really starting to amass a collection of LCD screens that are not easily interfaced and this project gives us some hope for the future. [Philip] has been posting about using an FPGA as a driver for a replacement PSP LCD screen.

Many projects source cell phone LCD screens that have their own driver chip that can be addressed over SPI for use with a simple microcontroller. More complicated screens need a more involved control scheme and this is where the Field Programmable Gate Array takes over. [Philip] lays out the steps he’s using to implement his controller, from setting up the correct voltage levels, to planning for coordinate addressing, and even some of his follies with reverse current. We think this would be a great way to introduce yourself to FPGA projects.

Remote Control Pellet Gun – With Scope

December 10, 2009 by Mike Szczys 40 Comments

Project Thunderbird is an automated predator and pest control system. It consists of a pellet gun mounted in a motorized base. The icing on the cake is a 60x zoom camera that has cross-hairs superimposed on the picture. This reminds us of the Internet hunting for the handicap we heard about years ago.

In the video after the break you can see how the motorized base works, watch the trigger-pull motor, and observe a demonstration of some target practice. The creator, [Gadgetapodimus], mentions the possible sale of plans and kits as soon as he completes the system. Perhaps it would be better if this was not easy for people to build.

Continue reading “Remote Control Pellet Gun – With Scope” →

Bendërbrau Now A Reality

December 10, 2009 by Jakob Griffith 23 Comments

It appears to be 5 o’clock somewhere as everyone seems to have only one thing on their mind. [Simon] set out to make his own Bender Brewer from the television show Futurama. But he made sure to include some key functions from episodes in the series. First and most notable Bender’s stomach contains a beer brewing kit, we think a coffee roaster would have been better, but to each their own.What we hackers love best is the ‘brains‘ of Bender, a 6502 processor controlled via remote to play a selection of 15 random sayings, including the infamous “Bite my shiny metal”, well, you know.

Finally, yes, we do realize this project was started and finished about 2 years ago. We like to think we allowed it time to ferment.

[Thanks Leo]

Fully-automatic Crossbow

December 8, 2009 by Mike Szczys 53 Comments

[youtube=http://www.youtube.com/watch?v=QS4RKoRyTik]

We received an excited email from [Noah] regarding a gentleman who works with crossbows and crossbow pistols. Begrudgingly, we took a look and what we saw made our day. [TheDuckman666] must have an insatiable love for all things crossbow. His webpage has details and pictures covering seven different models that he built. His YouTube channel shows off three more models, all with magazines for multiple bolts.

Seeing the electrically-cocked, automatic projectile launchers wets our appetite, but we do wish there was more background info about the build process.