Category Archives: plasma

Plasma-Powered Thrusters For Your Homebrew Satellite Needs

It seems as though every week we see something that clearly shows we’re living in the future. The components we routinely incorporate into our projects would have seemed like science fiction only a few short years ago, but now we buy them online and have them shipped to us for …read more

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Posted in cubesat, fuel, ion thruster, magnetic, peek, plasma, PocketQube, propulsion, satellite, space, teflon, thrust, Ultem | Leave a comment

Vacuum Sputtering with a Homemade Magnetron

“You can never be too rich or too thin,” the saying goes, and when it comes to coatings, it’s true that thinner is often better. The way to truly thin coatings, ones that are sometimes only a few atoms thick, is physical vapor deposition, or PVD, a technique where a …read more

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Posted in full bridge rectifier, high voltage MOT, magnetron, microwave oven transformer, misc hacks, plasma, sputtering, thin film, vapor deposition | Leave a comment

Cold Plasma Torch Produces a Cleansing Flame that Never Consumes

It’s basically a lightsaber. Except smaller. And with an invisible blade. And cold to the touch. But other than that, this homebrew cold plasma torch (YouTube, embedded below) is just like the Jedi’s choice in elegant weaponry.

Perhaps we shouldn’t kid [Justin] given how hard he worked on this project …read more

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Posted in Argon, electron, electron temperature, flyback, high voltage, ion, ionization, misc hacks, plasma, RF | Leave a comment

Grape Plasma Explained

You’ve probably seen the videos of a grape — cut almost totally in half — in a microwave creates a plasma. A recent physics paper studies the phenomenon with a lot of high-tech gear and now the actual mechanism is known. [Veritasium] interviews the scientists and explains the grape plasma …read more

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Posted in grape, microwave, plasma, science | Leave a comment

DIY Arc Light Makes An Unnecessarily Powerful Bicycle Headlight

Remember when tricking out a bike with a headlight meant clamping a big, chrome, bullet-shaped light to your handlebar and bolting a small generator to your front fork? Turning on the headlight meant flipping the generator into contact with the front wheel, powering the incandescent bulb for the few feet it took for the drag thus introduced to grind you to a halt. This ridiculous arc-lamp bicycle headlight is not that. Not by a long shot.

We’re used to seeing [Alex] doing all manner of improbable, and sometimes impossible, things on his popular KREOSAN YouTube channel. And we’re also used …read more

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Posted in ballast, bicycle, electrode, graphite, lithium ion, misc hacks, plasma, reflector, transportation hacks | Leave a comment

Add Some Edge To Your Blades With Blown-Arc Plasma

If you polled science fiction fans on what piece of technology portrayed by the movies that they most desire, chances are pretty good that the lightsabers from the Star Wars franchise would be near the top of the list. There’s just something about having that much power in the palm of your hand and still needing to be up close and personal to fight with it. Plus being able to melt holes in bulkheads is pretty keen, as are the cool sounds.

Sadly, the day we can shape and contain plasma in a blade-shaped field is probably pretty far off, …read more

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Posted in blown-arc plasma, high voltage, jacob's ladder, lightsaber, plasma, weapons hacks | Leave a comment

Plasma Etching In A Microwave

Deep inside your smartphone are a handful of interesting miniature electromechanical devices. The accelerometer is a MEMS device, and was produced with some of the most impressive industrial processes on the planet. Sometimes, these nanoscale devices are produced with plasma etching, which sounds about as cool as it actually is. Once the domain of impossibly expensive industrial processes, you can now plasma etch materials in a microwave.

Of course, making plasma in this way is nothing new. If you cut a grape in half and plop it in a microwave, some really cool stuff happens. This is just the 6th …read more

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Posted in microwave, plasma, plasma etching, tool hacks | Leave a comment

A Plasma Speaker Using A TL494

We’re used to loudspeakers as circular components with a paper cone and a big magnet inside which is suspended a coil that is connected to our audio amplifier. But moving-coil speakers are not the only way to create sound from electricity, there are one or two other weapons in the audio designer’s arsenal.

One of the more spectacular and entertaining is the plasma speaker, and it’s one [Marcin Wachowiak] has been experimenting with. A continuous plasma in the form of a discharge between two electrodes is modulated with an audio signal, and the resulting rapid changes in the volume of …read more

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Posted in hardware, plasma, plasma speaker, pwm, TL494 | Leave a comment

Linear Track Makes Plasma Cuts Neat And Simple

No microcontroller, no display, and not even an LED in sight. That’s how [Made in Poland] decided to roll with this motorized linear plasma cutter, and despite the simplicity it really gets the job done when there’s metal to be cut.

Plasma cutting makes slicing and dicing heavy stock a quick job, but it’s easy to go off course with the torch or to vary the speed and end up with a poor edge. This tool takes the shakes out of the equation with a completely homebrew linear slide fabricated from square tubing. A carriage to hold the plasma cutter …read more

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Posted in linear, metalwork, motorized, plasma, tool hacks | Leave a comment

Linear Track Makes Plasma Cuts Neat And Simple

No microcontroller, no display, and not even an LED in sight. That’s how [Made in Poland] decided to roll with this motorized linear plasma cutter, and despite the simplicity it really gets the job done when there’s metal to be cut.

Plasma cutting makes slicing and dicing heavy stock a quick job, but it’s easy to go off course with the torch or to vary the speed and end up with a poor edge. This tool takes the shakes out of the equation with a completely homebrew linear slide fabricated from square tubing. A carriage to hold the plasma cutter …read more

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Posted in linear, metalwork, motorized, plasma, tool hacks | Leave a comment