Regular submitter [Jared Bouck] from Inventgeek.com has sent us this cool project. He wanted to make a fireball cannon, but didn’t want to settle for plain old fireballs.Instead of using a common  propane system, he built an alcohol based one so he had a “blank slate” to start with. He then applied some copper chloride to get the desired greens and blues. With all of the fire displays we see, how come we don’t see more colored flames? Check out the overview video after the break.

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[Jared Bouck] is on a roll this week. We just covered his Diamond thermal paste and now he’s got more for us. To celebrate the re design of his website, he has released the plans for the paintball turret. As you may recall, we absolutely loved this design when he originally showed it to us. Though he has had kits available for a while, he has finally put the plans up for download. You can cut your own parts and build it yourself. He mentions that version 2 is coming shortly, we wait with bated breath.

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Reader, [Ben Godding], sends in the video for his senior design team’s automated paintball sentry. The frame is made of plasma cut aluminum. The paintball gun uses a custom hopper mounted remotely from the gun body. It has two webcams offering a 160 degree field of vision, and the image processing is done by a dual core pentium CPU booting windows xp off a compact flash card. The computer interfaces with the 1/4scale RC servos using a PIC24. The paintball sentry can either be configured via a computer GUI when a monitor is available or a baclkit keypad and…

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