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How To Make a Marshmallow Gun

How To Make a Marshmallow Gun

Measure, mark, and cut the pipe into one 1-inch segment, five 3-inch segments, and one 7-inch segment. To build the handle, put a cap on a 3-inch piece followed by an elbow and another 3-inch piece. For the mouthpiece, put the one-inch piece...
RGB Computer Controlled LED Bottle Wall

RGB Computer Controlled LED Bottle Wall

What is it about the combination of color and light which makes us automatically drawn to it ? Quite appropriately the video demo of Alex Beim's LED bottle wall project is without sound. It’s all visual illumination as we watch 253 bottles...
Rocker Scale Measures how Hard You Rock

Rocker Scale Measures how Hard You Rock

As you rock out with Guitar Hero or Rock Band, build a Rockerscale which using your crowd’s volume level, movement, etc. to measures how much you rock.  The project was created by the BBC and is fully documented on their website. ...
DIY Wrist-Mounted Flamethrower

DIY Wrist-Mounted Flamethrower

The Prometheus is what you might call the start of the "next-gen" level of do-it-yourself wrist-mounted...
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Human-Computer Interactive Whiteboard Pong

Human-Computer Interactive Whiteboard Pong

Take a regular whiteboard, markers, and a projector and you can play Pong on your wall.  It’s a physics based engine that reacts to it’s real time surroundings.  The program recognizes the black lines and causes the ball to behave...
Laser Guided Airsoft Gun Robot

Laser Guided Airsoft Gun Robot

A laser guided airsoft gun which can detect and aquire targets. Controlled with various motion sensors and adapts quickly to moving targets. View the Full...
Track Fingers with the Wii Remote

Track Fingers with the Wii Remote

Using an IR led array and some reflective tape, you can track fingers in thin air using the Wii Remote. By Johnny Chung Lee, Carnegie Mellon University. The grid software is a custom program written using a C# wiimote library and DirectX. ...
Twitter Robot makes Popcorn, starts a Movie

Twitter Robot makes Popcorn, starts a Movie

Imagine this… On your way home from work, you send the Twitter command “Prep movie" to your robot.  Your robot reads the command, waits for a bit, pops some corn and starts a movie.  Build your own twitter powered roboslave and learn how...
PSP Mod with LEDs and VU Meter

PSP Mod with LEDs and VU Meter

For the part of the mod, you can learn how to make a custom surface mount PCB to install an LED audio meter in your PSP.  We’ve covered a variety of VU meters in the past which illuminate LEDs based upon the intensity (volume units) of an...
Build a Heavy Duty Six Legged Robot

Build a Heavy Duty Six Legged Robot

Learn to build a robust, hexapod robot capable of carrying a human passenger.  The robot can also be made fully autonomous with the addition of a few sensors and a little programming.  The author has a detailed tutorial with plenty of...
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