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Moto Z2 Specs Leak As Launch Looms

Liliputing - 3 hours 5 minก่อน

Earlier this month the mid-range Moto Z2 Play aws announced. It’s a substantial upgrade over last year’s model, and it’s not the only refresh on the Moto radar. The Z2 is also on the way and it’s just made another early appearance thanks to GFXBench. Based on the data that Winfuture.de posted [Google translate link], […]

Moto Z2 Specs Leak As Launch Looms is a post from: Liliputing

Mechanical Image Acquisition With A Nipkow Disc

Hackaday - 5 hours 27 minก่อน

If you mis-spent your teenage years fishing broken televisions from dumpsters and either robbing them for parts or fixing them for the ability to watch The A Team upstairs rather than in the living room as I did, then it’s possible that you too will have developed a keen interest in analogue television technology. You’ll know your front porch from your blanking interval and your colour burst, you might say.

An illustration of a simple Nipkow disk. Hzeller (CC BY-SA 3.0).

There was one piece of television technology that evaded a 1980s dumpster-diver, no 625-line PAL set from the 1970s was ever going to come close to the fascination of the earliest TV sets. Because instead of a CRT and its associated electronics, they featured a spinning disk with a spiral pattern of holes. These mechanical TV systems were quickly superseded in the 1930s by all-electronic systems, so of the very few sets manufactured only a fraction have survived the intervening decades.

The spinning disk in a mechanical TV is referred to as a Nipkow disk, after its inventor, [Paul Gottlieb Nipkow]. [Nipkow] conceived and patented the idea of a spinning disk with a spiral of holes to dissect an image sequentially into a series of lines in the 1880s, but without the benefit of the electronic amplification that would come a few decades later was unable to produce a viable system to demonstrate it. It would be in the 1920s before [John Logie Baird] would develop the first working television system using [Nipkow]’s invention.

[Baird] with his invention, showing a large Nipkow disk. The operation of a Nipkow disk is simple enough. An image is projected onto its surface across the region through which the spiral of holes pass. As the disk rotates, each of its holes traverses its own arc across the image that is immediately adjacent to that traversed by the hole before it. As each of the holes performs the traverse they gradually scan the image line by line, and when the last hole in the spiral has passed it is immediately followed by the first one at the other end of the spiral and the process is repeated. If a light-sensitive detector is placed behind the disk then it receives a light intensity that corresponds to a voltage output representing the picture as video scan lines.

If the process is reversed and a lamp is placed behind the disk and fed an amplified video signal, as each hole passes in front of it there will be displayed a new line of the picture, and due to persistence of vision in the eye of the viewer the resulting fast-moving dot of light is built up into an image.

A confocal microscope in cross-section, with the Nipkow disk being inside the casing horizontally immediately below the eyepiece. US patent US3517980A.

It is a given that a Hackaday reader is unlikely to stumble upon a Baird Televisor or other mechanical TV set. But the beauty of this technology is that a Nipkow disk is straightforward to make. The elementary school method involves marking a piece of card or similar flat material at the appropriate angles for the position of the holes and then measuring their position from the centre at each angle with a ruler, but a contemporary suggestion was to draw a spiral with the aid of a piece of piano wire wrapped round a central shaft. Alternatively Hackaday readers may wish to try creating a pattern for one programatically, this is the solution I opted for back when I was experimenting with Nipkow disks. My code – VBScript, but it was the 1990s! – has been lost in the mists of time, but it involved first drawing a ring of sync holes following a clock face demonstration script, then drawing another ring with appropriate decrease in distance from the centre for each hole.

Lest you imagine the Nipkow disks are an antiquated technology found only in museums and on the benches of mechanical TV enthusiasts, there is one field at the cutting edge of science in which they still play a part. Confocal microscopy is a technique in which a sample is scanned with a pinpoint of tightly focused light, to produce an extremely narrow depth of field and to reduce or eliminate reflections from out-of-focus parts of the sample. The Nipkow disk has been joined by laser scanning in this task, but retains an edge when a very low light intensity is required for a photosensitive sample.

An outdated method for producing low-resolution television is probably not something that will set every Hackaday reader’s pulse racing. But I’m sure I’ll not be the only member of our community with an interest in this direction. If I’ve just described you, then maybe it’s time to cut yourself a Nipkow disk, and post your mechanical TV set on hackaday.io.

Header image: H. G. Cisin [Public domain].


Filed under: classic hacks, Featured, History

Deals of the Day (6-28-2017)

Liliputing - 5 hours 29 minก่อน

Sure, LG’s plan to launch a modular smartphone in 2016 and sell a set of modular accessories that could extend the functionality of the phone didn’t really work out all that well for the company. But if you ignore the modular features, the LG G5 is still a pretty good phone… especially now that you […]

Deals of the Day (6-28-2017) is a post from: Liliputing

Shuttle X1 compact gaming PC on the way

Liliputing - พุธ, 06/28/2017 - 23:34

Before there was the Intel NUC and Gigabyte BRIX, there was Shuttle. The company has been making small form-factor PCs and PC cases for ages, but in recent years Shuttle seems to have been focusing primarily on enterprise solutions with PCs designed for digital signage, point-of-sales systems and the like. Now it looks like the […]

Shuttle X1 compact gaming PC on the way is a post from: Liliputing

Friday Hack Chat: Climate Change

Hackaday - พุธ, 06/28/2017 - 23:00

This Friday, we’re talking climate change. Is it possible to remove carbon from the atmosphere before most cities are underwater? What role can hackers play in alleviating climate change? It’s all going down this Friday on the Hack Chat on Hackaday.io

We’ve invited [Tito Jankowski] and [Matthew Eshed] to talk about climate change this Friday over on hackaday.io. [Tito] and [Matthew] are the founders of Impossible Labs, and they’re looking for ways to find, test, and build technology that will remove carbon from Earth’s atmosphere. Their goal is to remove 300 parts per million of carbon dioxide by 2050. Will they succeed? If someone doesn’t, you can kiss every coastal city goodbye.

Their first job is getting everyone to care. [Jankowski] thinks it can be done through better access to information and snazzy graphics — if people knew what was going on, maybe they’d give a darn. So whether you’d like to talk graphics and data or the engineering of carbon sequestration devices, this is a Hack Chat of global importance. Join us!

Here’s How To Take Part:

Our Hack Chats are live community events on the Hackaday.io Hack Chat group messaging. This Hack Chat will take place at noon Pacific time on Friday, June 30th. Confused about where and when ‘noon’ is? Here’s a time and date converter!

Log into Hackaday.io, visit that page, and look for the ‘Join this Project’ Button. Once you’re part of the project, the button will change to ‘Team Messaging’, which takes you directly to the Hack Chat.

You don’t have to wait until Friday; join whenever you want and you can see what the community is talking about.


Filed under: Hackaday Columns

Fly Across the Water on a 3D-Printed Electric Hydrofoil

Hackaday - พุธ, 06/28/2017 - 22:00

Paddleboards, which are surfboard-like watercraft designed to by stood upon and paddled around calm waters, are a common sight these days. So imagine the surprise on the faces of beachgoers when what looks like a paddleboard suddenly but silently lurches forward and rises up off the surface, lifting the rider on a flight over the water.

That may or may not be [pacificmeister]’s goal with his DIY 3D-printed electric hydrofoil, but it’s likely the result. Currently at part 12 of his YouTube playlist in which he completes the first successful lift-off, [pacificmeister] has been on this project for quite a while and has a lot of design iterations that are pretty instructive — we especially liked the virtual reality walkthrough of his CAD design and the ability to take sections and manipulate them. All the bits of the propulsion pod are 3D-printed, which came in handy when the first test failed to achieve liftoff. A quick redesign of the prop and duct gave him enough thrust to finally fly.

There are commercially available e-foils with a hefty price tag, of course; the header image shows [pacificmeister] testing one, in fact. But why buy it when you can build it? We’ve seen a few hydrofoil builds before, from electric-powered scale models to bicycle powered full-size craft. [pacificmeister]’s build really rises above, though.

[pacificmeister], if you’re out there, this might be a good entry in the Hackaday Prize Wheels, Wings, and Walkers round. Just sayin’.

Thanks to [Reuben] for the tip on this one.


Filed under: misc hacks, transportation hacks

ARKit could help iOS leapfrog over Android in augmented reality

Liliputing - พุธ, 06/28/2017 - 21:00

Augmented reality apps have been around for almost as long as smartphones with cameras have been around. But lately they’ve started to get really good thanks to advanced technologies like Google’s Project Tango which uses software and hardware to mix virtual objects and real-world settings in cool ways. But there are only a few devices that […]

ARKit could help iOS leapfrog over Android in augmented reality is a post from: Liliputing

Wooden Laptop Enclosure: New Life for Old Thinkpad

Hackaday - พุธ, 06/28/2017 - 21:00

Technology is designed to serve us and make our lives better. When a device gets outdated, it is either disposed of or is buried in a pile of junk never to be seen again. However, some individuals tend to develop a certain respect for their mechanical servants and make an effort to preserve them long after they have become redundant.

My relationship with my first laptop is a shining example of how to hold onto beloved hardware way too long. I converted that laptop into a desktop with a number of serious modifications which helped me learn about woodworking along the way. Maybe it’s more pragmatic to just buy new equipment. But you spend so much time each day using your devices. It is incredibly satisfying to have a personal connection that comes from pouring your own craftsmanship into them.

Why the Effort? IBM Thinkpad R60 via Notebook Review

The laptop in question is an IBM R60 which I lugged around during the first three years after I graduated. It was my companion during some tough times and naturally, I developed a certain attachment to it. With time its peripherals failed including the keyboard which housed the power switch and it was decided that the cost of repair would outweigh its usefulness.

Then came the faithful day when I was inspired to make something with the scrap wood that had accumulated in my workshop. This would be my second woodworking project ever and I did not have the professional heavy machinery advertised in most YouTube videos. Yet I had two targets in mind with this project.

  1. Make the R60 useful again.
  2. Learn about woodworking for creating enclosures for future projects.

Armed with mostly hand tools, a drill and a grinder that was fitted with a saw blade, I started with the IBM R60 to all-in-one PC mod. Following is a log of things I did and those I regret not doing a.k.a. lessons learned. Read on.

Patience Is Power

First things first. Since the keyboard is dead and the power switch is on the keyboard, I needed to figure out a way to turn it on. After a short Google search that turned up nothing useful, I decided to trace out the pins on the keyboard connector that could be used to trigger the operation. Trial and error resulted in the isolation of the two pins that were the key.

I ripped out the ribbon cable from the faulty keyboard and was able to solder two wires to the appropriate contacts. A PCB mount push button was chosen because my intention was to mount it to the side of the chassis. In the video below, you can see that the hack works as expected.

Hot glue is so useful in such cases and I applied generously to the cable to tack it along the chassis as well as the edge where the button finally rests. That solves the power-up problem and I intend to use an external mouse and keyboard for the finished system.

Cuts and Bruises

It is evident that the hinges had to be removed in order to be able to fold the display backward, however, another challenge awaited. The ribbon cable that connects the display to the motherboard is not designed to wrap around the enclosure like I planned and is shorter than I would have like; much shorter.

Instead of discarding the chassis and LCD covers, I made the choice that involved power tools. The idea was to cut a slot in the main chassis so as to allow the cable to easily reach its destination. After unscrewing the connector and removing it, I carefully made the necessary incision.

A cut in the battery slot, as well as the LCD back cover, was necessary and though it may not be the cleanest, it did work out. My concern here was the cable itself and as you can see in the picture above, it suffered a bit of damage.

Evolution of the Enclosure Concept

The next part was the creation of an enclosure and I wanted to use the scrap wood I had lying around. I am not an experienced carpenter, to say the least. In fact, this was my second woodworking project and I used mostly manual tools for the project. The largest part is the LCD and I took some measurements to see if I could make a small box-like enclosure.

The result was something that did not resemble an enclosure, however, I am sharing the image here because it was a starting point. The ports could all be accessed however it was not something that could be presented. I continued to test my hypothesis of the usability of the system when put to work. I installed Kali Linux since the WiFi card could be used in a multitude of ways including a honeypot for network experiments.

The hardware worked at this point leaving only the enclosure in an unfinished state.

For the final design, I chose the standard all-in-one desktop form factor and decided to cut 12mm plywood into required sizes. The thick plywood meant that the completed frame would be quite heavy but it would also give me room to trim and drill if necessary.

Before I nailed everything together, I mocked it up to see where the slots for the ports and power plug would go. This is important since cutting out holes will become very difficult after things have been stitched together.

I marked everything out before I made the cuts and measured it twice since there was no scrap wood left. Instead of putting it under a saw, I decided to use a drill with a large bit to make holes.

My decision paid off and I used a circular saw to cut the rest of the slots. Normally this kind of stuff is done with a jig saw but I used my power saw with a small wood scrap for fulcrum and it worked out nicely. The resulting slots were later filed and cleaned up with the paint job. Once I was sure everything was in place, I used wood glue and nails to make the final enclosure. I took the blurry picture above, but you get the point.

Paint it Red!

The enclosure at this point was rough and not really fit for paint. The first thing to do was to add a coat of wood primer to fill in the gaps a bit. Next, I added a coat of wood filler and then sanded it down for a smooth finish. I started with 80 grit paper and move to 220 in a total of 5 steps.

The idea is to fill in any unevenness in the wood with filler and make everything plane. I then added another coat of primer and then some red enamel. I could have chosen laminates or something else but this was an experiment and an opportunity to learn. Watching paint dry was not as fun as I had hoped but I did get a glossy smooth finish at the end.

The Face That Launched the Project

The enclosure is incomplete without the front face and I had already reserved a piece for that. The size of the display was measured and marked on the designated piece. Cutting it was tougher than I thought and it is better to shave off a bit more than required since the edge will need to be prepared later anyway.

The board was primed and painted the same as the enclosure with red enamel to match with the back. The edges could use some wooden ply edges to make things smooth but I wanted to minimize my bill of materials so this had to do.

For the border on the display window, I used some white-silver plastic corner molding I had left over in the scraps. Lucky! I cut them up to the right size to the best of my abilities and used super glue to hold them in place.

Screws and Boring Stuff

To hold things together, screws should be used but they will look ugly along the white border. Improvisation led to the addition of screw holes from the back running through the ply-board all the way to the front. I used a smaller drill bit to first make the hole (end-to-end) and then a larger bit to make a counter bore.

That was the final screw and the enclosure was missing just one detail… the Jolly Wrencher. I had one from the Hackaday Prize a few years ago and I also added a few other decals to finish the job.

Woodworking in a 3D Printing World

When we see projects with wooden boxes online we usually don’t appreciate the effort that went into creating it. I for one thought it would be easy and found it to be a messy experience as compared to 3D printing. Here are a few takeaways.

  • Try to use connectors where possible. They can save a lot of time in the long run.
  • Keep a few push buttons in stock. You already know why.
  • Be ultra-careful of cables and components. I damaged a part of the display cable and wish I had taken my own advice.
  • If you decide to cut wood manually, decide if you want to add décor (trim) later. If so then shave a bit more than you need but just a little bit.
  • Sanding takes time. There are no shortcuts to a perfect finish in woodwork.
  • Safety gear is a must. You don’t want to lose pieces of you.
  • When in doubt, get a professional advice.

My old beat up laptop got a new lease on life and I plan to use it as a desktop until something terminal happens to it. The enclosure prepared has some imperfections and those make it unique. It speaks volumes about the effort that has been put into it and has increased the sentimental value of the machine.

I have learned a bit about working with wood and will be experimenting with lumber next. The only drawback I have seen is the additional weight as opposed to plastic. The advantage of being sturdy is something that can come in handy for large volume projects. Share your projects and tips and hopefully, beginners like me will get better with time.


Filed under: computer hacks, Hackaday Columns

Copper, Brass, Mahogany, and Glass Combine in Clock with a Vintage Look

Hackaday - พุธ, 06/28/2017 - 18:00

No two words can turn off the average Hackaday reader faster than “Nixie” and “Steampunk.” But you’re not the average Hackaday reader, so if you’re interested in a lovely, handcrafted timepiece that melds modern electronics with vintage materials, read on. But just don’t think of it as a Nixie Steampunk clock.

No matter what you think of the Steampunk style, you have to admire the work that went into [Aeon Junophor]’s clock, as well as his sticktoitiveness –he started the timepiece in 2014 and only just finished it. We’d wager that a lot of that time was spent finding just the right materials. The body and legs are copper tube and some brass lamp parts, the dongles for the IN-12A Nixies are copper toilet tank parts and brass Edison bulb bases, and the base is a fine piece of mahogany. The whole thing has a nice George Pal’s Time Machine vibe to it, and the Instructables write-up is done in a pseudo-Victorian style that we find charming.

If you haven’t had enough of the Nixie Steampunk convergence yet, check out this Nixie solar power monitor, or this brass and Nixie clock. And don’t be bashful about sending us tips to builds in this genre — we don’t judge.

[Horatius], thanks for the tip.


Filed under: classic hacks, clock hacks

New Ransomware Crippling Chernobyl Sensors

Hackaday - พุธ, 06/28/2017 - 15:00

[The BBC] reports Companies all over the world are reporting a new ransomware variant of WannaCry. this time it has taken out sensors monitoring the Chernobyl nuclear disaster site.

We have all heard of the growing problem of ransomware and how Windows XP systems seem especially susceptible to WannaCry and it’s variants which were originally zero day vulnerabilities stored up by the NSA then leaked by WikiLeaks. Microsoft did release a patch. It’s been everywhere in the media but it still seems that some people didn’t get the memo.

Ukrainian state power plants and Kiev’s main airport, among others, have been affected. Probably most interesting and scary of all is that Chernobyl monitoring stations have been taken out, and monitors have to take radiation levels manually for the moment.

It seems that most reports are coming from old Soviet Bloc states (Ukraine, Russia, and Poland), which raises the question of where the attacker is based. Kaspersky Lab is reporting that it’s believed the ransomware was a “new malware that has not been seen before” with a close resemblance to Petya. So as a result, the firm has dubbed it NotPetya.

NotPetya is spreading rapidly affecting companies all over the world with no signs of slowing just yet. Will we see an end to WannaCry variants any time soon?

 


Filed under: news, security hacks

An Enchanted Rose For A Beauty

Hackaday - พุธ, 06/28/2017 - 12:00

Being a maker opens up so many doors in terms of ways to romance one’s partner through passion projects. If their passion is Disney films, then you may handily make them the enchanted rose from Beauty and the Beast for their birthday. Easy-peasy.

In addition to the love and care that went into this build, redditor [Vonblackhawk2811] has included a set of LEDs, salvaged from cheap flashlights and electronic candles, which are controlled by four toggle switches and offer multiple lighting selections — candlelight, soft white, colour cycling, and bright white — to appropriately set the mood. As if that wasn’t enough to romance his sweetheart, he’s also included an aux cord input and a pair of speakers so they may be serenaded by a tune or two as they dance the night away.

Liberal use of hot glue and duct tape are keeping the electronics secured, preventing any shorts. After all — what would it say if this gift went up in flames? An inspired stencil design — hand drawn and cut out — was used to apply a spray-on frosted glass finish to the cloche, and a romantic phrase was burned into the base, completing this heartfelt gift. The only quibble we have is that now we all have to step up our game in the courtship department.

That is, unless one is sporting the Romance Pants.

[via /r/DIY]


Filed under: misc hacks

Qualcomm Snapdragon 450 brings better performance (and efficiency) to the mid-range

Liliputing - พุธ, 06/28/2017 - 11:02

As expected, Qualcomm’s new Snapdragon 450 chip is about to bring a huge performance boost to mid-range smartphones. The new chip offers is a 14nm processor that offers higher clock speeds than the 28nm Snapdragon 435 processor that launched just a few months ago. But it should also offer better graphics and video playback performance, […]

Qualcomm Snapdragon 450 brings better performance (and efficiency) to the mid-range is a post from: Liliputing

Qualcomm’s new Fingerprint sensors work under glass, under displays, and underwater

Liliputing - พุธ, 06/28/2017 - 11:01

Qualcomm is probably best known for making the chips that power smartphones, but the company has also been developing fingerprint sensors for a while. The company’s latest drop the Sense ID name and are just called Qualcomm Fingerprint Sensors. And along with the no-nonsense name come features designed for modern smartphone hardware. For example, there’s […]

Qualcomm’s new Fingerprint sensors work under glass, under displays, and underwater is a post from: Liliputing

Qualcomm launches Snapdragon Wear 1200 platform for wearables

Liliputing - พุธ, 06/28/2017 - 11:00

Qualcomm’s latest smartwatch chip is designed for low-power, always-connected devices. The new Snapdragon Wear 1200 platform is a 28nm chip that features a 1.3 GHz ARM Cortex-A7 processor and support for the new LTE IoT standard. While LTE IoT doesn’t provide the kind of high-speed internet access you get from 4G LTE, you do get […]

Qualcomm launches Snapdragon Wear 1200 platform for wearables is a post from: Liliputing

Machine Learning IDE in Alpha

Hackaday - พุธ, 06/28/2017 - 09:00

Machine is an IDE for building machine learning systems using TensorFlow. You can sign up for the alpha, but first, have a look at the video below to see what it is all about.

You’ll see in the video, that you can import data for a model and then do training (in this case, to find a mustache in an image). You’ll see the IDE invites an iterative approach to development since you can alter parameters, run experiments, and see the results.

The IDE syncs with “the cloud” so you can work on it from multiple computers and roll back to previous results easily. We don’t know when the IDE will leave alpha status (or beta, for that matter), but the team’s goal is to release a free version of Machine to encourage widespread adoption.

If you want to learn more about TensorFlow, you are in the right place. We’ve also covered a bare-bones project if you’d rather get started that way. You can also find some good background material going all the way back to the early perceptron-based neural networks.


Filed under: software hacks

YouTube channel IoT view counter

dangerous prototype - พุธ, 06/28/2017 - 06:53

Kenneth Finnegan built this YouTube channel IoT view counter, inspired by Becky Stern’s IoT counter:

I’ve wanted an Internet connected read-out for some time now, inspired by the awesome shadow box IoT projects Becky Stern has been doing (weather, YouTube subscribers). I’m certainly not to the same level of packaging as her yet, but I’ve got a functional display working with a Hazzah and an eBay seven segment display module.

Project info at Kenneth’s blog.

Check out the video after the break.

Dual-Purpose DIY Spot Welder Built with Safety in Mind

Hackaday - พุธ, 06/28/2017 - 06:00

Ho-hum, another microwave oven transformer spot welder, right? Nope, not this one — [Kerry Wong]’s entry in the MOT spot welder arms race was built with safety in mind and has value-added features.

As [Kerry] points out, most MOT spot welder builds use a momentary switch of some sort to power the primary side of the transformer. Given that this means putting mains voltage dangerously close to your finger, [Kerry] chose to distance himself from the angry pixies and switch the primary with a triac. Not only that, he optically coupled the triac’s trigger to a small one-shot timer built around the venerable 555 chip. Pulse duration control results in the ability to weld different materials of varied thickness rather than burning out thin stock and getting weak welds on the thicker stuff. And a nice addition is a separate probe designed specifically for battery tab welding — bring on the 18650s.

Kudos to [Kerry] for building in some safety, but he may want to think about taking off or covering up that ring when working around high current sources. If you’re not quite so safety minded, this spot welder may or may not kill you.


Filed under: misc hacks, tool hacks

Dallas Semiconductor DS1284 die decap: A look at a 30 year old design

dangerous prototype - พุธ, 06/28/2017 - 05:45

Dallas Semiconductor DS1284 die decap from Electronupdate:

The Dallas Semiconductor DS1284 (and related DS1286 which integrated a battery and crystal in the same package) found lots of use in industrial control and test equipment.
30 years ago processor chips contained not much other than the processor. Utility functions such as real time clocks, non volatile ram and watchdogs were always external.
Dallas semiconductor was quite successful in creating some of these utility chips which put a number of functions into a single device. The company was eventually acquired by Maxim in 2001.

More details at Electronupdate blog.

Check out the video after the break.

Micron kills off Lexar flash drives, storage cards, and other products

Liliputing - พุธ, 06/28/2017 - 05:16

Say goodbye to the Lexar brand of removable storage products. Parent company Micron Technology is “discontinuing its Lexar retail removable storage business.” That means you won’t see new Lexar-branded USB flash drives, SD cards, card readers, or other memory products. I suspect it’ll take a while before stores sell out of any remaining inventory though, […]

Micron kills off Lexar flash drives, storage cards, and other products is a post from: Liliputing

#FreePCB via Twitter to 2 random RTs

dangerous prototype - พุธ, 06/28/2017 - 04:24

Every Tuesday we give away two coupons for the free PCB drawer via Twitter. This post was announced on Twitter, and in 24 hours we’ll send coupon codes to two random retweeters. Don’t forget there’s free PCBs three times a every week:

  • Hate Twitter and Facebook? Free PCB Sunday is the classic PCB giveaway. Catch it every Sunday, right here on the blog
  • Tweet-a-PCB Tuesday. Follow us and get boards in 144 characters or less
  • Facebook PCB Friday. Free PCBs will be your friend for the weekend

Some stuff:

  • Yes, we’ll mail it anywhere in the world!
  • Check out how we mail PCBs worldwide video.
  • We’ll contact you via Twitter with a coupon code for the PCB drawer.
  • Limit one PCB per address per month please.
  • Like everything else on this site, PCBs are offered without warranty.

We try to stagger free PCB posts so every time zone has a chance to participate, but the best way to see it first is to subscribe to the RSS feed, follow us on Twitter, or like us on Facebook.

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