Robot arms are cool, and to judge from the SCARA arms and old Heathkit robots tucked away in a cupboard of every computer science department in every university in the world, they're still remarkably ...

On the Starship Enterprise, an engineer can simply tell the computer what he'd like it to do, and it will do the design work. Moments later, the replicator pops out the needed part (we assume to atomi...

If binary clocks have you confused by all the math required to figure out what time it is, we have the solution for you: a unary clock. After all, what's simpler than summing up powers of two? Powers ...

Decorating graduation caps is often frowned upon by the administration but [Dan Barkus] is challenging his school authorities to keep from smiling when they see what he has in store. His build will…

Looking for a better way to store your tools during transportation? While we certainly wouldn't recommend trying to check this thing as a carry-on (oh and prepare for it to be searched even in checked...

3D printers have forever changed the hardware hacker movement. From the original RepRap project on up through current commercial offerings, 3D printers have become an indispensable tool for hackers, ...

There are a few interesting Hackaday gatherings going on next weekend. The first is the Bay Area Maker Faire. Most of the Hackaday and Tindie crew will be in San Mateo next weekend, and we're giving a...

Refits of retro TVs and radios with the latest smart guts are a dime a dozen around Hackaday. And while a lot of these projects show a great deal of skill and respect for the original device, there's ...

This DIY mailbox pretty much has it all. Not only is it waterproof and secure, it’s beautifully built and unlikely to arouse the suspicion of or induce fear in the mailman. It’s made of…

(Yeah, we don't know what that title means either.) But holding your PCBs down in one place and nicely registered while you spread solder paste over them is a problem that needs solving, and [Carsten]...

We’ve seen hundreds of ways to create your own PCBs at home. If you have a laser printer, you can put traces on a piece of copper clad board. If you have some hydrogen peroxide and acid, you …

The folks at TOG, Dublin Hackerspace, have a large variac. A variac is a useful device for testing some fault conditions with AC mains powered equipment, it allows an operator to dial in any AC out…

The [Make It Extreme] team has been racking up the builds lately, and a lot of them are heavy with metalworking. When you’re doing that kind of work, and you put as much care into finishing y…

[prubeš] shows that parts printed with carbon fiber filament are as strong, or at least as stiff, as you’d expect. He then shows that his method for producing carbon fiber parts with a mixtur…

A large installed base of powered speakers from a defunct manufacturer and a dwindling supply of working remote controls. Sounds like nightmare fuel for an AV professional - unless you take matters in...

Someone brought a dead Marantz amplifier to [Lansing]'s attention, a rather nice model from the 1980s with one channel entirely dead and the other very quiet. His account of its repair is straightforw...

The Hackaday Overlords (or Hackaday family) are running a series of AMAs on SupplyFX. What is SupplyFX? It's a social network for EEs. Who's in the first AMA? [Brady Forrest], the guy who runs Highway...

In these days of cheap microprocessors and easy access to accurate timing through NTP or from the likes of MSF, WWVB, or DCF77, it's no problem to ensure that any number of clocks keep the same time....

Saturday was the first Madison Mini Maker Faire. In this case, it’s Madison, Wisconsin (sorry Madison, SD I didn’t mean to get your hopes up) where I live. Of course I’m not the o…

For electronics aficionados, there are few devices cooler than music synthesizers. The first synths were baroque confabulations of opamps and ladder filters. In the 70s and 80s, synths began their …

Switch-mode power supplies are ubiquitous. Standard off-the-shelf modules in a consistent range of form factors available from multiple manufacturers. Globalized manufacturing and trade has turned the...