Author: Tom Nardi

2528 Articles

Exploring A New Frontier: Desktop EDM Is Coming

July 5, 2023 by 27 Comments

To say that desktop 3D printing had a transformative effect on our community would be something of an understatement. In just a decade or so, we went from creaky printers that could barely extrude a proper cube to reliable workhorses that don’t cost much more than a decent cordless drill. It’s gotten to the point that it’s almost surprising to see a project grace these pages that doesn’t include 3D printed components in some capacity.

Cooper Zurad

There’s just one problem — everything that comes out of them is plastic. Oh sure, some plastics are stronger than others…but they’re still plastic. Fine for plenty of tasks, but certainly not all. The true revolution for makers and hackers would be a machine that’s as small, convenient, and as easy to use as a desktop 3D printer, but capable of producing metal parts.

If Cooper Zurad has his way such a dream machine might be landing on workbenches in as little as a month, thanks in part to the fact that its built upon the bones of a desktop 3D printer. His open source Powercore device allows nearly any 3D printer to smoothly cut through solid metal using a technique known as electrical discharge machining (EDM). So who better to helm this week’s Desktop EDM Hack Chat?

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VCF’s Swap Meet Experiment Helps Support Expansion

June 29, 2023 by 13 Comments

There was a time when those looking for tech bargains had to either try their luck at the local flea market, or make the pilgrimage out to a dedicated swap meet. But with the rise of websites like eBay and Craigslist these parking lot meetups started to fall out of favor, to the point that they became all but extinct over the last couple decades.

So there was some risk involved when the Vintage Computer Federation decided to dust off the concept as a way of sidestepping New Jersey’s COVID-era limitations on indoor meetups. But as VCF Vice President [Jeffrey Brace] explained during our visit earlier this month, the experiment has more than paid off. Each swap meet has brought in buyers and sellers from all over the Mid–Atlantic region, helping to not only raise money for the VCF’s ongoing preservation efforts, but spread awareness of the organization and their goals.

The VCF hopes to expand their existing museum.

During our chat, [Jeffrey] goes over the origins and growth of the VCF swap meet, and how it compares to their annual Vintage Computer Festival. He also speaks about the Federation’s desire to expand their already impressive museum space into a far larger climate-controlled area that will allow for even more classic computer hardware to be put on display.

We visited the VCF swap meet back in 2021, and came away with the distinct impression that [Jeffrey] and the rest of the team had a winning idea on their hands. We’re happy to report that as of 2023 the areas where we saw room for improvement — namely the lack of on-site refreshment and a somewhat overly narrow focus on vintage hardware — have both been addressed. In its current form, this is truly a must-see event for anyone with an interest in computers, radio, or even just general electronics who happens to live within driving distance of the Jersey shore.

While eBay certainly makes it easy to bid on a piece of gear, you’re unlikely to make a new friend while doing so. Events like this are more than just a way to buy and sell hardware, but provide a chance for like-minded individuals to connect and build a community. We’re glad to see the event grow larger each year, and hope it inspires similar revivals elsewhere.

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Democratizing Space, One Picosatellite At A Time

June 28, 2023 by 50 Comments

There was a time when putting an object into low Earth orbit was the absolute pinnacle of human achievement. It was such an outrageously expensive and complex undertaking that only a world superpower was capable of it, and even then, success wasn’t guaranteed. As the unforgiving physics involved are a constant, and the number of entities that could build space-capable vehicles remained low, this situation remained largely the same for the remainder of the 20th century.

Nathaniel Evry

But over the last couple of decades, the needle has finally started to move. Of course spaceflight is still just as unforgiving today as it was when Sputnik first streaked through the sky in 1957, but the vast technical improvements that have been made since then means space is increasingly becoming a public resource.

Thanks to increased commercial competition, putting a payload into orbit now costs a fraction of what it did even ten years ago, while at the same time, the general miniaturization of electronic components has dramatically changed what can be accomplished in even a meager amount of mass. The end result are launches that don’t just carry one or two large satellites into orbit, but dozens of small ones simultaneously.

To find out more about this brave new world of space exploration, we invited Nathaniel Evry, Chief Research Officer at Quub, to host last week’s DIY Picosatellites Hack Chat.

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Jack In, The 2023 Cyberdeck Challenge Starts Now

June 20, 2023 by 17 Comments

The modern laptop is truly a masterpiece of engineering, craming an incredible amount of processing power into a thin and lightweight package that can run for hours on its internal batteries, all for just a few hundred bucks. Combine that with the ubiquitous smartphone, and it’s safe to say that the state of mobile computing has never been better.

A retro-futuristic portable computer with a touch screen and a shoulder strapDespite this, over the last several years we’ve watched cyberdecks go from a few one-off examples to a vibrant community of truly personal computing devices. While there are some exceptions, most of them are larger, more expensive, and less portable than what’s available on the commercial market. But that’s not the point — a cyberdeck should be a reflection of the hacker that built it, not the product of a faceless megacorp.

Which is why we’re excited to officially announce the 2023 Cyberdeck Challenge, starting now and running all summer through to August 15th.

Whether it’s a ridiculously over the top wearable that wouldn’t look out of place in a cyberpunk anime or a pocket-sized gadget that you operate with a handful of unlabeled buttons, we want to see it. All we ask is that it be a functional device capable of some useful amount of computing, anything beyond that is up to you. Turn in one of the top three designs, and you’ll earn a $150 USD DigiKey shopping spree, just what you need to pack a few extra bells and whistles into your rig.

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Review: InfiRay P2 Pro Thermal Camera

June 19, 2023 by 65 Comments

It probably won’t surprise you to learn that Hackaday is constantly hounded by companies that want us to review their latest and greatest gadget. After all, getting us to post about their product is cheaper, easier, and arguably more effective than trying to come up with their own ad campaign. But if you’ve been with us for awhile, you’ll also know that in-house reviews aren’t something we actually do very often.

The reason is simple: we’re only interested in devices or products that offer something useful or unique to this community. As such, the vast majority of these offers get ignored. I’ll give you an example. For whatever reason, multiple companies have been trying desperately to send me electric bikes with five-figure price tags this year. But since there’s no obvious way to turn that into useful content for the readers of Hackaday, I’m still stuck pedaling myself around like it’s the 1900s. I kid of course…I haven’t dared to get on a bike in a decade.

So I don’t mind telling you that, when InfiRay contacted me about reviewing their P2 Pro thermal camera, the email very nearly went into the trash. We’ve seen these kind of phone-based thermal cameras before, and it seemed to be more of the same. But after taking a close look at the specs, accessories, and claims laid out in the marketing material, I thought this one might be worth checking out first-hand.

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Light Meets Movement With A Minimum Of Parts

June 15, 2023 by 20 Comments

We often say that hardware hacking has never been easier, thanks in large part to low-cost modular components, powerful microcontrollers, and highly capable open source tools. But we can sometimes forget that what’s “easy” for the tinkerer that reads datasheets for fun isn’t always so straightforward for everyone else. Which is why it’s so refreshing to see projects like this LED chandelier from [MakerMan].

Despite the impressive final result, there’s no microcontrollers or complex electronics at work here. It’s been pieced together, skillfully we might add, from hardware that wouldn’t be out of place in a well-stocked parts bin. No 3D printed parts or fancy laser cutter involved, and even the bits that are welded together could certainly be fastened some other way if necessary. This particular build is not a triumph of technology, but ingenuity.

The video below is broken up roughly into two sections, the first shows how the motorized crank and pulley system was designed and tested; complete with various bits of scrip standing in for the final LED light tubes. Once the details for how it would move were nailed down, [MakerMan] switches over to producing the lights themselves, which are nothing more than some frosted plastic tubes with LED strips run down the center. Add in a sufficiently powerful 12 VDC supply, and you’re pretty much done.

As it so happens, this isn’t the first motorized lighting fixture that [MakerMan] has put together.

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