Building your own Halbach-effect brushless DC motor is one thing. Making sure it won't blow up in your face another matter, and watching how [Christoph Laimer] puts his motor to the test is instruct...

[Robert Baruch] found a TMS9900 CPU from 1983 in a surplus store. If that name doesn’t ring a bell, the TMS9900 was an early 16-bit CPU from Texas Instruments. He found that, unlike modern CP…

We have fond memories of air-water rockets, which were always a dime store purchase for summertime fun in the pool. Despite strict guidance from mom to shoot them only straight up, the first target…

For some mobile projects like small carts or rolling cabinets, your standard casters from Harbor Freight will do just fine. But some projects need big, beefy wheels, and these custom cast aluminum whe...

When [ik1xpv] sets out to build a software-defined radio (SDR), he doesn’t fool around. His Breadboard RF103 sports USB 3.0, and 16-bit A/D converter that can sample up to 105 Msps, and can r…

You can’t keep a good hacker down. [Amazingdiyprojects] wants to build a reliable manned multirotor, and by golly, he’s doing it.  After a crash of his petrol powered design, [Amazingdi…

The 3D printing revolution is upon us and the technologies associated with these machines is evolving every day. Stereolithography or SLA printers are becoming the go-to printer for high-resolution p...

Fidget spinners -- so hot right now!

[Ben Parnas], and co-conspirator in engineering inanity [Greg Daneault], brought to the recent Boston Stupid Hackathon in Cambridge, MA, their IoT-enabled Fidge...

Chemist and Biochemist [Thunderf00t] has shown us a really interesting video in which you can spot the wrist he broke 10 years ago using a thermal camera. He was on an exercise bike while filming h…

Are your arms getting tired from pushing your camera back and forth across your camera slider? That must be the case with [Max Maker], which led him to convert his manual slider into a motorized one. ...

We’ve all probably done it — gazed up at a passing jetliner and wondered where it was going and what adventures its passengers were embarked upon. While the latter is hard to answer, th…

A dive scooter, or a submersible ducted fan used by divers, is not a new invention. They’ve been around for years, used by everyone from the villain of the week on Miami Vice to professional …

What do you do when your motherboard is covered in electrolytic grime, has damaged pads and traces that are falling apart? You call [RetroGameModz] to work their magic with epoxy and solder. While …

It's 2017, and getting a PCB professionally made is cheaper and easier than ever. However, unless you're lucky enough to be in Shenzhen, you might find it difficult to get them quickly, due to the vag...

As an entry into this year's Best Product portion of the Hackaday Prize, [kelu124] is developing a hardware and software development kit for ultrasound imaging.

Ultrasound is one of the primary to...

A few months ago, we had a Hack Chat with Chip Gracey, the guy behind Parallax, the Basic Stamp, the Propeller, and the upcoming Propeller II. Now we've finally got around to editing that transcript. ...

There’s a new and very detailed video tutorial about the Raspberry Pi available from the Australian firm Core Electronics.  There are 30 videos and 5 chapters in total. A few of the introduct…

Feel like taking a long walk, but can't be bothered with carrying your drinks? Have no fear, this  "Follow Me" Cooler Bot is here!

Really just a mobile platform with a cooler on top, the robot con...

For your high speed, low torque needs, few things beat a rotary tool like a Dremel. The electric motor has its limits, though, they generally peak out at 35,000 rpm or so. Plus there’s the du…

Had enough of fidget spinners yet? If you haven’t heard, a toy that consists of a bearing in the center of a multi-lobed flat structure that’s designed to spin around the bearing’s axis with little…

Gen. Robert H. Barrow, USMC, once said that “Amateurs talk about tactics, but professionals study logistics.” That’s true in many enterprises, but in warfare, the side that neglec…