RFID enabled flame shooting trampoline

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Video and pictures from the flame shooting RFID enabled trampoline at the Maker Faire! See Dale catch some air! – “The High-Lighter is a trampoline based flame effect. The installation involves a volunteer from the audience jumping on a unmodified trampoline. An ultrasonic sensor placed below the trampoline measures the changes in the height of the trampoline canvas as the user jumps up and down. A microcontroller notes the changes reported by the sensor and triggers a single solenoid valve to open and close. Based upon on the amount of force being applied to the trampoline the solenoid valve will behave differently. The harder someone jumps on a trampoline the longer the solenoid valve will stay open, illuminating a cylindrical metal tube with stenciled designs. LP-Gas will be released through the solenoid valve while it is open and ignited by a nearby pilot light covered in steel wool. A RFID reader is included used to prevent the trampoline from being used without proper authority present.”Link.

3D World of Warcraft screenshots

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Profquotes writes – “I’ve been a fan of 3D photography for a long time. Over the years I’ve built a few 3D cameras, but I’ve never taken 3D images of a game world. Many modern games use a 3D render engine, so the information is there, and I’ve taken a couple of 3D shots of World of Warcraft to experiment. “Link.

Related:

  • Callipygian 3D – Link.
  • How to Make 3D Photos – Link.
  • Make 3-D photos – Link.

Workbench plans – made with Sketchup

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Michael writes – “Here are free workbench plans created in Google’s new 3D design software Sketchup.”Link.

Related:
Sketchup is free – Link.

Makers, if you use Sketchup and make things, let us know – post them in the MAKE Flickr photo pool and also tag them Sketchup, we’ll do a weekly round up or something.

Creepy doll robot

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Ryan writes – “I’ve been following with much interest these robo-one style robots. The servo powered little humanoids with amazing capabilities. I saw a few video clips of the KHR-1 humanoid and decided I wanted it. Then I saw the price. Around $1,200. Then i decided i could build one myself. Imagine a doll, crossed with a robo-one robot. It’s a computer cotrolled robot doll. Very cool, and a little creepy all at the same time.”Link.

Related:

  • Robot projects and more – Link.
  • The next volume of MAKE is all about robots so subscribe now (use code CMAKE for $5 more off! USA) – Link.

Hand built Hood hinges

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Hotrodder writes – “The members on our hotrodding forum have been very impressed by the metalshaping skills of Pakistani “denters”. Complex automotive body panels and pieces are shaped by hand, or with primitive tools. The pics of welding in open-toed sandals with no protection are very cool. With the assistance of a Pakistani doctor/businessman, these metalshapers are selling inexpensive hand-formed body parts to enthusiasts in Western automotive forums. Initially focusing on 4×4 body panels, they are now gearing up to form complete steel hot rod bodies at half the current market price. More info here and here. Very interesting, from both a cross-cultural and lowbuck-maker perspective.”Link.

Really cheap homemade DIY photo studio

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Udi sent in a super-cheap photo studio – “So, you want to start your own homemade studio but you are totally broke and you want it to be cheap. Actually, being cheap is your prime demand from this studio. You don’t need no external fancy lighting or strobes. You just want to try out some still life photography, or you need take some shots for eBay. So this article is just for you. Here is what I have to offer for about 1-3 USD. This studio utilizes a huge soft box and a background. But before we start lets see some of the prime requirements from a studio. We want to get even light, with good shadow management and a smooth background that will not distract from our main subject.”Link.