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Burning Propane Beautifully Illustrates How a Tesla Valve Works
When you hear the name “Tesla”, chances are good that thoughts turn instantly to the company that’s trying to reinvent the motor vehicle and every industry that makes it possible. While we applaud the...
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It’s About Time We Saw Another Infinity Mirror Clock
Have you made an infinity mirror yet? They’re pretty much a rite of passage project at this point. But unlike that DIY power supply, most of them serve no function beyond looking cool (not that there’s...
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Why Is Your Cellphone Not A More Useful Computer?
Sometimes when you are browsing randomly through the tech feeds, up pops an article that just crystallizes a nascent thought that had been simmering below the surface for a long time, and is enough to...
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ArrBot is a Fast Way To Get Out Standing in a New Field of Robotics
[Junglist] correctly points out that agricultural robotics is fast on its way to being the next big thing (TM) and presents his easy to build ArrBot platform so others can get hacking fast. The frame...
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Say What You Will, A Fursuit is a lot of Work.
One thing [Dr. Cockroach]’s build log shows is that a fursuit isn’t an easy thing to make. Furries came out of early American comics and grew into the subculture the internet just can’t leave alone...
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Bottle Organ Breakdown
A keen-eyed commenter pointed us to a homemade bottle organ that plays like a piano. The complexity gets turned up with foot-powered bellows and custom keys, but the magic of [Mike] and [Simon...
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The Home-Made Drill Press Of Your Dreams
We are lucky to live in an age when tools have almost never been so affordable, when if we’d like a drill press on our benches we can pick one up for not a lot from our nearest discount store. If the...
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See How Wildly Different Air Conditioners Can Be (On The Inside)
Air conditioners are easy to take for granted. From refrigerators to climate control, most of us would miss them dearly if they disappeared. That’s part of what draws [Josh Levine]’s interest in air...
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The Boxy All-In-One Nintendo 64 Your 1990s Self Always Wanted
In 1997, chances are that if you didn’t have a Nintendo 64 already, you wanted one. (Never mind that the games cost the GDP of a small country.) It gave you both the supreme game designing talent of...
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A LED Cube Designed for Easy Assembly
LED cubes are mesmerizing and fun, but they’re usually a pain to build. Not so with [burkethos]’s cleanly designed cube. Many cubes are put together in an elaborate sculptural style. Traditionally...
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Hackaday Links: December 15, 2019
When you’re right, you’re right. Back in January, we predicted that exoskeletons were about to break out as a mainstream product, and gave several examples of prototypes poised to become products. So...
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Weird World of Microwaves Hack Chat
Join us on Wednesday, December 18 at noon Pacific for the Weird World of Microwaves Hack Chat with Shahriar Shahramian! We’ve been following him on The Signal Path for years and are excited to pick his...
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Prusa Dares You to Break Their Latest Printer
Two months after its surprise reveal at the 2019 East Coast RepRap Festival, the Prusa Mini has started shipping out to the first wave of early adopters. True to form, with the hardware now officially...
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Kelly Heaton’s Artwork Blurs the Line Between Traditional and Electronic
Digital electronics are all well and good, but it’s hard to ignore the organic, living qualities of the analog realm. It’s these circuits that Kelly Heaton spends her time with, building artistic...
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How To Design A Low Cost Probe-Oscilloscope
[Mark Omo] sends in his write up on the design of what should hopefully be a sub-$100 oscilloscope in a probe. Many problems in engineering can be solved simply by throwing money at the them. It’s...
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Busy Box Beats Baby’s Boredom
We would love to be a fly on the wall Christmas morning to see [Wilksyonreddit]’s kid tear the paper off of this adult-level busy box. Can you imagine the unbridled glee? It should certainly make the...
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What Time Is It On Mars?
Time is tricky, and it’s only gonna get worse when we become a multi-planet species. Fortunately, [Folkert van Heusden] has a clock ready for what may be our second home with the Mars Clock. This...
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Linux Fu: Stupid SSH Tricks
If you connect to remote computers over the Internet, it is a pretty good chance you use some form of SSH or secure shell. On Linux or Unix you’ll use the ssh command. Same goes for Linux-like...
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A Nixie Radio Clock Fit For a Victorian Mad Scientist
[Ioszelos] built a nixie clock with a dizzying array of features. Do you ever wish that you could log in to your clock from your phone and turn off your TV? We assume that [Ioszelos] did. The clock...
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Tidy Board Rework Uses Flex PCBs, No Wires
PCB rework for the purpose of fixing unfortunate design problems tends to involve certain things: thin wires (probably blue) to taped or glued down components, and maybe some areas of scraped-off...
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