Usually I write about ham radio. But looking at communication devices of the future from the past, I thought it would be fun to have a Star Trek: The Original Series Bluetooth communicator for a cellphone. I worked with Dave Clausen to hack one together from a toy Star Trek communicator, a Bluetooth module, and a microcontroller. Following are the directions and program to make your own. And of course a video to show how the Star Trek Bluetooth Communicator works.

And if you really want to geek it up, the Star Trek Bluetooth Communicator can also be used with the Yaesu VX-8R ham radio. It also makes an awesome gift. Read on for the full tutorial.

Contraptor is a DIY open source construction set for experimental personal fabrication, desktop manufacturing, prototyping and bootstrapping. Various сartesian robots can be assembled from Contraptor and used as a prototyping platform for projects such as XY plotter, mini CNC machine, 3D printer etc. You can make components of the Structural + Basic linear motion subsets of Contraptor at home for about $300 in parts and materials, plus shipping, taxes and time. Sketchup models of Contraptor components are hosted on Google 3D Warehouse while the DXF exports and SVG templates are hosted on Thingiverse, a cool new site for sharing hardware designs. If you like the set but don't want to make it, we're working with Hines Design Labs to fabricate a small quantity of Contraptor subsets, and then release the design/manufacturing files under an open source license, so that anyone with Shopbot could do the same. The initial kits are planned to be sold at or below cost - $150 to 250 depending on the subset. We need 10 committed buyers for Structural subset kit ($200) and 10 for Basic linear motion subset kit ($250).

Gordan Savicic and Gottfried Haider of DSbrut fame have tipped us off that they've just released their DS Bluetooth adapter for the Nintendo DS.

Almost two years in the making, we're happy to finally release our DS Bluetooth adapter. The tiny Slot-1 cartridge allows you to hook up the Nintendo DS wirelessly with other devices such as GPS-receivers, robots and so forth. Today we're making all materials of the project openly available, including the schematics and a GPL-licensed software library for the Nintendo DS, because we believe in open hardware design and want to encourage collaboration in the hardware hacking community.

If you've got a homebrew Nintendo DS project that we should know about leave a link in the comments.

Nice work Ian.

Man, what don't monomes do? Robert Böhnke puts the popular open source controller to work as a Twitter display.

Related:
Monome's 64 (video) fingers

Josh Klein developed a machine that trains crows to trade coins for peanuts. Literally, for peanuts. So you fill this thing with peanuts and set it out, say, in a public park, and the crows will scour the ground for loose change, carry it to the machine, and drop it in a slot in exchange for food. The project, dubbed "CrowBox," made a big splash when he unveiled it back in 2007. Now he's made the complete plans for the CrowBox freely available online so you can roll your own. And there's no reason you couldn't train your fly-monkeys-fly to gather other crow-portable objects. Twenty-dollar bills? Keys? iPods? Human eyes? The possibilities are endless. Set one up at the beach! Train seagulls to trade whole wallets for pre-shucked oysters!

MakerBeam is an open-source metal building system. There's a technology called T-slot (example here) that is widely used for industrial automation, robotics and machine enclosures.

MakerBeam has defined a standard called Mini-T which is a miniature version of T-slot. It's small enough to work as a model building system, and precise and strong enough to build real machines and robots with it.

I don't do CAD or 3D printing, but this software at least looks promising from my armchair. It's an open source CAD/CAE app based on OpenCasCade, QT, and Python. It offers features like macro recording, the ability to run as a server and dynamically load application extensions, and it runs on Windows, Linux, and Mac. One of the many cool features it offers is 100% scriptable objects in Python:

Besides the standard object types such as annotations, meshes and parts objects, FreeCAD also offers the amazing possibility to build 100% python-scripted objects, called Python Features. Those objects will behave exactly as any other FreeCAD object, can be saved in a document and opened on any other installation of FreeCAD, since the python code that defines the object is also saved in the document.

The project is still in alpha. The only official builds are in Windows and 32-bit Debian Linux, but you can download (from their SourceForge site) unofficial builds for AMD-based 64-bit Debian/Ubuntu, openSUSE. and Intel Mac OS X.

FreeCAD

At Maker Faire Rhode Island, I saw Christina waiting near the AS220 Fab Lab for her son Forest. She was holding some of the replacement parts that he had made for his MakerBot. We talked a bit about what making means to her and Forest. They're already looking forward to Maker Faire 2010.

MAKE subscribers, watch your mailboxes for Volume 20: Kids, which should be arriving very soon.

Evil Mad Scientist Laboratories, pioneers of the Cylon Jack-O-Lantern, just released a new Larson Scanner kit!

Today we're releasing a new open-source project and kit, which is an updated approach to the "Larson Scanner." The Larson scanner is named in honor of Glen A. Larson, the man responsible for producing both the original Battlestar Galactica and Knight Rider television shows, and consists of a set of red LEDs that scan back and forth.

Three years ago, we showed how to make a Cylon Jack-O-Lantern, in what has become one of our all-time most popular tutorials. The circuit for that project was based on a 555 timer, driving a 4017 decade counter, and has 6 pixels of resolution. To create the incandescent fading effect, we added low-pass transistor drivers. We also wrote up a version of that article for the 2007 MAKE Magazine Halloween special, which included a slightly nicer version of that same circuit.

And while it's been popular, we've always had some nagging reservations about it, and in particular its battery life. This year, we decided to do something about it and made a much better version of the Larson Scanner, and so here it is!

The kit is open source and designed to be hackable. Read more about the kit in their announcement.

From MAKE magazine:

DIY HALLOWEEN from MAKE & CRAFT!

DIY HALLOWEEN from the editors of MAKE and CRAFT brings you 40-plus DIY projects for the holiday that's made for makers. From the craftiest costumes to amazing animated props and the latest in computer-controlled haunted house effects.

Check it out!

• Source code, Schematics, PCB files
• Design
• Downloads

AT A GLANCE

* Open-source hardware offers an advanced start on your design.
* Open-source software complements open-source hardware.
* Open-source hardware prepares your PCB (printed-circuit-board)-fabrication and -assembly houses for high-volume production.
* You may want to share your improvements by making them open-source additions, as well.

Many designers are familiar with open-source software, such as Linux, in which the source code is available to all. However, fewer are familiar with organizations offering open-source hardware. These organizations release free information, including schematics, BOM (bill-of-materials) information, and PCB (printed-circuit-board)-layout data, covering the overall hardware design.

Designers with this information can build or add to a freely available design. In many cases, open-source software supports the original design, providing additional advantages. Some aspects of open-source hardware go beyond the sharing of the design itself.

These aspects can save time and money for not only hardware developers but also PCB designers and fabricators, contract manufacturers, and even software developers.

You can license open-source projects from organizations such as Creative Commons, which offers the Attribution-ShareAlike licensing program. Creative Commons stipulates that a user must attribute the open-source work in the manner that the original designer specifies but not in a way that indicates that the original designer endorses the user's work. Likewise, if users provide that work as open-source hardware, releasing it back to the community for access by others, then they must provide that work under the same Attribution-ShareAlike licensing...

This is still a work in progress but the MakerBot actually seems to print braille rather well. I can't read braille so I can't judge for sure whether it's readable but it certainly seems like it. The trick is to get the G-code right to prevent warts on the front face (i'm still fiddling with this). I think this might have a lot of potential. A braille bracelet will be next in my printing/designing queue.

Creatrope has posted an interesting discussion on the use of Phil Jergensen's reusable grid beam elements for Halloween props. I dunno how much I can get behind the whole gridbeamer thing just yet, but for seasonal stuff it does make a certain sense: If you like it a whole bunch, store it complete, and if you don't, take it apart and reuse the elements.

A German hacker named Ray has printed a working handcuff key, to the Dutch national pattern, on his RepRap. You can download the .STL file here. Not that we encourage that sort of thing. <SUBLIMINAL>Do it do it do it do it.</SUBLIMINAL> [via Boing Boing]

Two great Drawdio videos from Ars Electronica Festival via leobard & Jay! Kit is available in the Maker Shed too!

Strategy & Business magazine has an interesting article on the shan zhai manufacturers in China at the moment. It’s the first business press article I’ve seen in the US that takes a relatively balanced approach to reporting on them. It’s worth a read, as it’s a trend that’s already affecting business, particularly the electronics business. It suggests a new approach to economic recovery as well, one based on small companies well-networked with each other.

I first learned about the shan zhai on a recent trip to Shenzen, China, hosted by PCH International and Bunnie Huang (Bunnie’s got a good blog post describing the shan zhai). The popular image of these companies in the US is that they’re producing cheap knockoff goods based on established multinationals, but there’s more to it than that, as S&B and Bunnie point out.

So here's a random idea I had.

Most readers are probably familiar with Dave Gingery's series of books on building a set of homemade machine tools. The technique, basically, involves building an inexpensive homemade charcoal furnace and crucible for melting aluminum, then using traditional green-sand casting techniques to mold the various machine parts from wooden patterns. Much of the content of Gingery's books details the construction of these patterns.

As I have recently discovered, however, lost-foam casting is a much more accessible metal-casting technique than traditional green-sand. It requires no special flasks, no special sand, and no consideration of parting-line placement in designing patterns. Basically you make your pattern from styrofoam, bury it in sand, and pour hot aluminum into it. The foam vaporizes and diffuses into the sand, and you're left with a perfect aluminum duplicate. The only downside is that the pattern itself is destroyed, so if you screw up the casting or want more than one copy of a part you need a new pattern.

Here's what I'd like to see: Some enterprising soul with a CNC foam cutter could sell kits of the Gingery machine patterns ready-cut in XPS foam.

Then, if you wanted to build the Gingery tools, you wouldn't have to spend a lot of time learning the art of green-sand casting, or building the special tools required, or carpentering on the patterns themselves, most of which will only be used once anyway. You'd just buy a few ounces of pre-cut foam patterns in a kit, bury them in sand, and start pouring hot aluminum right away. Depending on sales volume, it might even be practical to make the foam patterns in conventional molds, the same way styrofoam packaging inserts are produced, at lower cost than CNC machining.

If you're interested, supportive, or (for your own unfathomable reasons) furious, feel free to sound off in the comments.

When I wrote the first version of this article six years ago, I called it “Why Free Software usability tends to suck”. The best open source applications and operating systems are more usable now than they were then. But this is largely from slow incremental improvements, and low-level competition between projects and distributors. Major problems with the design process itself remain largely unfixed.

Many of these problems are with volunteer software in general, not Free Software in particular. Hobbyist proprietary programs are often hard to use for many of the same reasons. But the easiest way of getting volunteers to contribute to a program is to make it open source. And while thousands of people are now employed in developing Free Software, most of its developers are volunteers. So it’s in Free Software that we see volunteer software’s usability problems most often.

That gives us a clue to our first two problems...

Many designers are familiar with open-source software, such as Linux, in which the source code is available to all. However, fewer are familiar with organizations offering open-source hardware. These organizations release free information, including schematics, BOM (bill-of-materials) information, and PCB (printed-circuit-board)-layout data, covering the overall hardware design. Designers with this information can build or add to a freely available design. In many cases, open-source software supports the original design, providing additional advantages. Some aspects of open-source hardware go beyond the sharing of the design itself. These aspects can save time and money for not only hardware developers but also PCB designers and fabricators, contract manufacturers, and even software developers.

Modded from the 64 Fingers Monome sequencing software, Charlie Visnic's 64 (Video) Fingers, adds video manipulation to the popular controller's open-source arsenal - download here. [via Matrixsynth]

More:
Open-source grid controller - the monome

We keep hearing about all of these amazing devices and objects that other people are making with CNC tools like laser cutters, Shopbots, mills, and maybe you are feeling left out. You may be like the college student in the mid 1980's who didn't like completing papers on the typewriter and looking for a way to use the word processor. If today, you make a design for the part you need, how can you get it machined? You can leverage the power of 100 thousand garages.

You may be surprised to learn, that there are several thousand shops all over the world with tools for digital fabrication (sometimes called CNC tools) that can make exactly what you want (how can replicating parts be that easy?). There's probably even one near you. Some are regular businesses, some are part-timers, and some are small shops that have some spare production time: each has the capability to help you make all kinds of things. You know what a 'Copy Center' is for getting printed pages and projects made, 100kGarages is like a virtual 3D copy center for getting real parts and projects made.

Check out Bill Young's thoughts on the idea at 100k Garages.

From David Ackley, Liquidware, and Illuminato Labs comes the Illuminato X Machina project -

It’s a small “motherboard cell” that can interchangeably link and connect up to other cells, either rightside up or upside down, to adaptively route packets and power to its neighbors, like a grid of biologic cells, passing nutrients and resources to their neighbors. Also, each board can program its neighbors using a dynamic bucket-passing bootloader that allows any given cell in the grid to over-ride or re-program neighbors.
[…]
Each cell runs a 72 MHz ARM processor with 56 digital I/O pins, and the ability to accept power from any one of its 4 edges. This means that the cellular grid can expand in any direction, and the reversible interconnections mean it can grow like a crystal in any orientation.

In this BBC piece, an IBM engineer on the Isle of Wight, shows off the 16th century thatched cottage that he's wired with sensors and connected to Twitter. In the article that accompanies the video, he uses a term he's apparently coined for objects that tweet: "tweetjects."

I'm here to try and stage a lexicographical intervention. As the editor of Wired's Jargon Watch column for 12 years and as a computer and Internet terms consultant for the Oxford American Dictionary, I'm asking, no I'm begging, please don't call 'em "tweetjects!" "Blobjects" was bad enough, but at least it made a kind of ham-handed sense. Then we had "blogjects." I'm still trying to get that one out of my mouth. Now tweetjects? Sounds like a breakfast cereal that's too good to taste any good. The brilliant American lexicographer (and CRAFT magazine contributor) Erin McKean says that we vote with our usage. Please people, vote "No" on this tortured term.

The Tweeting House: Twitter + Internet of Things

Clay Shirky recently described revolutions as situations in which "...the old stuff gets broken faster than the new stuff is put in its place." He was talking about newspapers, but the insight can apply much more broadly. Advertising, for example, seems to be going through its own revolution, with existing models falling to tatters without a clear successor waiting in the wings. Education is another example, and some would argue that a similar process is underway in the realm of international power and politics.

Shirky's observation came to mind while watching a recording of Bruce Sterling's closing keynote for the ReBoot conference last month. Late in the talk, Bruce tosses out this line: "Objects are print-outs." He goes on to discuss how to rethink one's relationship with material possessions in an increasingly precarious world, but the "objects are print-outs" line stuck with me. It encapsulates not just an attitude towards material possessions, but--in one pithy phrase--one possible shape of the next economy.

Open source suds, anyone?

Halfluck Automated Brewing System (HABS)

Peter Semmelhack, Founder and CEO of Bug Labs, sent us the following piece on creating an open source movement in health care technology. We thought it was interesting and something MAKE readers might want to chew over and chime in on. - Gareth

This is my first attempt at putting into words what I've been contemplating for several weeks, so you'll have to forgive me if it seems a bit rough around the edges. But I've learned that when an idea bangs around in my head long enough, it's usually a good idea to share it with others and either start a larger discussion or euthanize it. So here it is. Tell me what you think.

I believe we need an open source movement dedicated to health care. In essence, I want to rally the same fanatical zeal that has helped build some of the best, most complex software systems (LAMP, etc) ever devised to help address some of the world's thorniest health care problems. I understand that's a very easy thing to say and enormously complicated to actually do, but I'll try to provide a simple example of how I think we could start. After all, open source as we know it today did not start with Linux.

Right now, if you have someone in your life with Type 1 diabetes, I bet it's safe to say that you'd want notification (email, txt msg, IM, etc.) if he or she experienced a life threatening low or high blood sugar level. You'd especially want to know if they experienced one of these events and then fell down. It's also a safe bet that you know getting this type of alert is virtually impossible today. There isn't a device or gadget you can go buy that provides it. Building a wireless glucometer with an integrated accelerometer would not be too hard technically. In fact, I know a few people who could hack it together in a week.

The same could be said about a device that helps monitor the breathing of kids with juvenile asthma, or the whereabouts of someone suffering from Alzheimer's. I could go on, but you get the point. There are hundreds, if not thousands, of specific (and specifically precise) tools that could be developed to help everyone lead healthier lives, and help communities take care of one another. If you look at all the active communities devoted to open source software - games, music, programming languages, etc. - I'd like to hope that it's not too far a stretch to believe we can inspire the same energy and passion around improving the health and well-being of others. Think of the benefits associated with groups worldwide sharing their discoveries, methods and processes to achieve better results. This is not new territory. It happens everyday right now with FOSS communities.

One of the biggest hurtles is economics. Building these types of systems are expensive. But maybe there is a way address it. There are approximately 1M children suffering from juvenile diabetes in the US (29,000 new occurrences each year). If the community could design, build, and certify an open source prototype device that could potentially reduce mortality by even 5% per year, you would have a huge impact. Potentially, the Juvenile Diabetes Research Foundationa (JDRF) could sponsor its manufacture and sell it/give it to any/all sufferers. Assuming a reasonable price for making 1M devices (say $90 --> $90M to equip every child with a device, though, of course that wouldn't be necessary) it would be within easy reach of any number of foundations and/or government programs. Or sell it at a profit with the proceeds going back to JDRF. Communities have worked this way in the past. Why not apply it here?

This is just one example. I'm sure there are better ones. But the point is, you could make the same case for virtually any health issue. The key to living longer, healthier lives, and lowering the costs of providing care is via better information. Getting better information is what good tools are designed to do. I'm arguing that we should explode the creation of these tools. But rather than rely solely on the world of business to lead the charge, why not organize and energize communities of hackers to create the technical foundations for a health care revolution unlike anything we've seen before? It can't be any more complicated than hacking a Linux kernel ;)

P.S. For a list of some of the activity going on now around health care and open source, check here

Justin Huynh sent in this:

At Maker Faire a couple weeks ago, Matt and I showed off the Open Source Gameboy and OpenBerry, and in the tradition of hacking together arduino versions of cool handheld gadgets, Matt put together the Open Source PSP with two player ping-pong on it. It's got two inputshields and a touchshield slide, sitting on a triplewide extender which is all hooked up to the arduino. Here's a link to the blog and youtube.

Our friends over at Sparkfun have announced their decision to officially make some of their kits open source. Nathan and company have always been supporters of OSH, but now they're going to be putting links to the engineering files up to at least some of their kits. The first is the ClockIt kit, an alarm clock kit built around the ATMega168. The listing for the kit ends with links to the Eagle files (licensed under CC v3.0 Share-Alike), the schematic, the source code, and a link to an "Improve Source Code" forum posting. Nice. "One of the great things about open source is the ability to say 'Hey, I'm pretty sure this works, but it may not be the best way to do it. Can you help me out?,'" says Nathan Seidle.

ClockIt