Possible Fire Hazard: Wanhao “Recalls” Duplicator i3 3D Printer

Wanhao is reaching out to its customers and resellers, warning them of a design flaw in their Duplicator i3 that may cause fires. The printers suffer from an issue that causes crimp connections of the nozzle heater cartridge’s supply line to fail due to the mechanical stress in the cable drag chain. In…... [Continue...]
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[Geohot] Selling His “Self-Driving” Car Tech for $1k by New Year

This week [Geohot] announced the launch of his self-driving car hardware. This is the natural extension of his proof-of-concept shown off in December which he parlayed into a Silicon Valley startup called comma.ai. [Geohot], whose real name is [George Holtz], is well know for jailbreaking the iPhone and making Sony look…... [Continue...]
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Ask Hackaday: Are Gaming PCs Hard to Build?

No. No they’re not. But let’s talk about it anyway. The endless trenches of digital worlds are filled with hardcore gamers from all walks of life. They can be found exploring post-apocalyptic Boston in Fallout 4, and commanding Sgt. Recker through a war-torn landscape in Battlefield 4 for hours on end. Their…... [Continue...]
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Portable Workbench Crams An Entire Workspace Into One Box

Making on the go is sometimes required in today’s busy lives, and if you find yourself traveling — say, off to university like [ZSNRA] — then a convenient solution is required. To that end, a portable electronics workbench was built in the shape of a relatively nondescript plywood box. Plywood and foam-core are…... [Continue...]
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Hacklet 125 – DIY Laptops

In the old days of the 1970’s, the only way to get your own computer was to build one from scratch. Thanks to an army of hackers like [Woz], PC’s are no commodity objects that can be bought for a couple of hundred dollars. The magic of building your own still is…... [Continue...]
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Drone Flys 12 cm on Wireless Power

[Sam M] wrote in with a quick proof-of-concept demo that blows our socks off: transferring enough power wirelessly to make a small quadcopter take flight. Wireless power transfer over any real distance still seems like magic to us. Check out the videos embedded below and you’ll see what we mean.…... [Continue...]
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Drone Flies 12 cm on Wireless Power

[Sam M] wrote in with a quick proof-of-concept demo that blows our socks off: transferring enough power wirelessly to make a small quadcopter take flight. Wireless power transfer over any real distance still seems like magic to us. Check out the videos embedded below and you’ll see what we mean.…... [Continue...]
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Wilderness Radio Build

[AA7EE] is no stranger to building radios. His latest is a from-scratch build of a 20 meter QRP transceiver based on the popular SST design. Although the SST has been available as a kit, [AA7EE] incorporated some design changes from others and some of his own, too. He even added an onboard…... [Continue...]
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Hackaday Prize Entry: High End Preamps

While compact disks are seeing an uptick in popularity thanks to a convenient format that offers a lossless high-quality 44.1 KHz sample rate with 16-bit depth, some people are still riding the vinyl bandwagon of 2010. With that comes a need for the best hardware, and that means expensive cartridges…... [Continue...]
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High Performance Crystal Radio

When you think of a crystal radio, you probably think of something simple maybe built out of household scraps. Not if you are [Chris Wendling]. He recently posted a video (see below) of his high-performance crystal set. He doesn’t take any shortcuts: he has several hundred feet of antenna wire,…... [Continue...]
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Smartphone TV Remote Courtesy of Homekit and ESP8266

Good grief, this smartphone-to-TV remote really drives home how simple hardware projects have become in the last decade. We’re talking about a voltage regulator, IR LED, and ESP8266 to add TV control on your home network. The hardware part of the hack is a homemade two sided board that mates an…... [Continue...]
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Waste Shark Aims To Clean Our Harbours And Oceans

Drones are adding functionality to our everyday lives, and automation is here to help humanity whether we’re ready for it or not. In a clever combination of the two, [Richard Hardiman] of RanMarine has developed small drone-boats that scoop up garbage from the ocean — he calls them ‘Waste Sharks.’…... [Continue...]
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Retrotechtacular: Railroads In The Jet Age

It started with one of those odd links that pop up from time to time on Hacker News: “The strange and now sadly abandoned Soviet Jet Train from the 1970s“. Pictures of a dilapidated railcar with a pair of jet engines in nacelles above its cab, forlorn in a rusty siding…... [Continue...]
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A Better Way to Measure Your Impact on the World

Close your eyes and think of an electric wheelchair. What do you see? Is it sleek, futuristic, and elegant… worthy of the moniker: iChair? No, no it is not. It’s a boxy tank-like thing with grey knobbed wheels that is powered with lead-acid batteries. Why is that? Obviously there are…... [Continue...]
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RC Car Piloting with the Blast Shield Down

Many of us have had a radio controlled car at some time in our youth, though it’s probable that none all of us entirely mastered it. There are memories of spectacular crashes, and if we were really unlucky, further boosts to Mr. Tamiya’s bank balance as fresh parts had to be fitted.…... [Continue...]
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Resistance in Motion: What You Should Know About Variable Resistors

Adjusting the volume dial on a sound system, sensing your finger position on a touch screen, and knowing when someone’s in the car are just a few examples of where you encounter variable resistors in everyday life. The ability to change resistance means the ability to interact, and that’s why variable resistance devices…... [Continue...]
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Capcom CPS2 security programming guide

Eduardo Cruz from Arcade Hacker  writes: Dear all, after a few months of testing we are extremely happy to release the new clean desuicide / security programing method for Capcom’s CPS2 hardware. This guide is the result of almost two years of work by an small group of arcade enthusiasts…... [Continue...]
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Grand Theft Auto V Used To Teach Self-Driving AI

For all the complexity involved in driving, it becomes second nature to respond to pedestrians, environmental conditions, even the basic rules of the road. When it comes to AI, teaching machine learning algorithms how to drive in a virtual world makes sense when the real one is packed full of squishy…... [Continue...]
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A New OS For Apple II Computers

Although this sort of work is usually reserved for KansasFest and other forums for highly technical and very skilled Apple enthusiasts, [John Brooks]’s release of a new version of the ProDOS operating system is no less important. It is, without a doubt, the greatest release the Apple II platform will…... [Continue...]
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Hackaday Prize Entry: Neopixel Pocket Watch

A timepiece is rather a rite of passage in the world of hardware hacking, and we never cease to be enthralled by the creativity of our community in coming up with new ones. Today’s example comes from [Joshua Snyder], who has made a pocket watch. Not just any pocket watch, he’s…... [Continue...]
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