Halloween Prop: The Ground-breaker

September 26, 2009 by Caleb Kraft 28 Comments

[youtube=http://www.youtube.com/watch?v=46RycwjIvs8]

[casafear1] has put out this video detailing how to build the “ground-breaker”, a zombie escaping from the grave. It is a simple frame for the arms and shoulders, with a couple pneumatic pistons to make it jerk as though it were pulling itself from the grave. He goes into a decent amount of detail explaining the physical construction, offering several tips to prolong the life of this prop. Unfortunately, he doesn’t enlighten us as to his control scheme. Is it manually controlled? Is it automated? Does it get activated by passers by or is it always going?

Last year, we posted most of the Halloween projects after Halloween. This year we would like to try to get you those ideas and inspiration far enough ahead of time to help you put them to use. Send us your favorite Halloween projects so we can get them published.

[via Makezine]

Pneumatic Bed Alarm Clock

June 26, 2009 by Caleb Kraft 50 Comments

[youtube=http://www.youtube.com/watch?v=kQ-l5PlDa-k]

For four years, this guy has been using this Pneumatic bed alarm clock to wake up. Apparently “I’m a really heavy sleeper” is an understatement. It is computer controlled and runs from two seperate air sources. He entered it in a radio show contest and we’re guessing he won. You can see the test run at the radio station after the break. We really can understand the fun of building this. But actually using it for four years, without suffering any major injuries, is an accomplishment of it’s own.

Continue reading “Pneumatic Bed Alarm Clock” →

Scratch Built Air Muscles

December 21, 2008 by Eliot 9 Comments

airmuscle2

We first talked about air muscles in 2005 while lusting after Shadow Robotic’s dexterous hand. The pneumatic devices are known for being lightweight and compliant. They’re designed to be used in robot arms and legs. [jelengar] stumbled across this guide to building your own air muscles. We’re not exactly sure what the original source is since it reads like a machine translation. The core is a piece of silicone tubing used in aquariums. It’s sealed at one end with a bolt. Braided electrical sheathing is slid over the tube and secured using multiple wraps of 24gauge wire. They say to test it using 20psi, but there’s no mention of what the limits are.

Cythbot, Pneumatic Guitar Hero

November 22, 2008 by Eliot 7 Comments

cythbot

Here’s yet another robot hoping to dominate the human race through the power of ROCK. Cythbot was built to demonstrate Cyth Systems machine vision systems. The device uses a camera to watch the Guitar Hero monitor and identify notes for button presses. The strum bar is then triggered after a delay. The notes are identified solely by pixel intensity since star power can cause them to change shape and color. All button presses are done using pneumatics. The whole system is self-contained and doesn’t require a separate computer for processing. Our favorite part is that the controller remains completely unmodified and the industrial light tree used to indicate notes. The team says that the pneumatics aren’t quite fast enough to hit 100%, unlike some humans. Video of the bot in action after the break. Continue reading “Cythbot, Pneumatic Guitar Hero” →