Digital Preservation for Old Batteries

The times they are a-changin’. It used to be that no household was complete without a drawer filled with an assortment of different sizes and types of batteries, but today more and more of our gadgets are using integrated rechargeable cells. Whether or not that’s necessarily an improvement is probably …read more

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Hackaday Podcast 083: Soooo Many Custom Peripherals, Leaving Bluetooth Footprints, and a Twirlybird on Mars

Hackaday editors Mike Szczys and Elliot Williams ogle the greatest hacks from the past 168 hours. Did you know that Mars Rover didn’t get launched into space all alone? Nestled in it’s underbelly is a two-prop helicopter that’s a fascinating study in engineering for a different world. Fingerprinting audio files …read more

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3D Printed Doggie Braces

[Tye’s] dog Lucifur unfortunately has degenerative arthritis causing her a lot of pain in her feet. The vet suggested orthotic carpal braces to help alleviate the pain, but they come at a price tag of at least $1600. Given her current budgetary limitations, [Tye] decided to try the DIY route. …read more

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Printed TS100 Case Beats the Heat with a Bearing

As we’ve said many times in the past, the creation of custom cases and enclosures is one of the best and most obvious applications for desktop 3D printing. When armed with even an entry-level printer, your projects will never again have to suffer through the indignity of getting hot glued …read more

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3D Printering: The Search for Better Search

There’s no question that a desktop 3D printer is at its most useful when it’s producing parts of your own design. After all, if you’ve got a machine that can produce physical objects to your exacting specifications, why not give it some? But even the most diligent CAD maven will …read more

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A Power Bank For Soldering On The Go

If you have a portable gadget, the chances are you’ve probably used power banks before. What few could have predicted when these portable battery packs first started cropping up is that they would one day be used to power soldering irons. Dissatisfied with the options currently available on the market, …read more

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Prusa Launches Their Own 3D Model Repository

If you own a 3D printer, you’ve heard of Thingiverse. The MakerBot-operated site has been the de facto model repository for 3D printable models since the dawn of desktop 3D printing, but over the years it’s fallen into a state of disrepair. Dated and plagued with performance issues, many in …read more

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3D-Printing Wankel Engine from Mazda’s Beloved “Rotary Rocket”

Although there was briefly a company called Rotary Rocket, the term is much better known as a nickname for the Mazda RX-7 — one of the few cars that used a Wankel, or rotary, engine. If you ever wondered how these worked, why not print a model? That’s what [Engineering Explained] did. They printed a 1/3 scale model and made a video explaining and demonstrating its operation. The model itself was from Thingiverse, created by [EricThePoolBoy].

One thing we really liked about the model was the use of lights to show the different stages of combustion. Cool air intake is …read more

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