How-To: Rolled Sheet Metal Yakitori Grill

Yakitori Grill from MAKE Volume 30

When longtime MAKE contributing writer Bob Knetzger took a trip to Japan, one of his most memorable experiences was sampling the sizzling street-side grills. In his intro he writes:

Unlike big American grills that cook anything from burgers to ribs to steaks, these specially sized grills were designed to do one thing and one thing only: skewers. Short skewers loaded with chicken, asparagus, meatballs, and other simple ingredients spanned the narrow troughs of red-hot coals. The suspended foods cooked quickly and without burning or sticking to a grate or grill surface.

Bob was particularly fond of the yakitori (marinated chicken on skewers), and designed this simple grill with sheet metal body, cake pan end caps, L-strap legs, wine cork feet and handles, and special roll-proof, double-crook skewers. He shares his step-by-step on the pages of MAKE Volume 30 and on Make: Projects. And yes, the tasty yakitori recipe is also included.

Yakitori Grill Assembled

From the pages of MAKE Volume 30:

MAKE Volume 30Until recently, home automation was gimmicky, finicky, and user-hostile. But today, thanks to a new crop of devices and technology standards, home automation is useful, fun, and maker-friendly. In the special section of MAKE Volume 30, we’ll show you: how to flip any switch in your home with a smartphone, home automation without programming, controlling your HVAC with an Arduino, a webcam security system, and a wall-mounted Notification Alert Generator (NAG) that plays timely reminders as you walk by. Plus, you’ll build a Yakitori Grill, a robust R/C flying-wing airplane, sturdy furnishings from PVC, and more!

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Thoughts on the 7th Annual Maker Faire

Another Faire has come and gone, leaving thousands of people hyper-inspired and super tired. I no longer have a voice, but I’m sure it’ll be arriving any moment now at my front door, like a piece of hand-delivered lost luggage.

I’ve been to every Maker Faire Bay Area since the second one (and both World Maker Faires in NY). Every Faire seems “special,” but this year’s was special in some unique ways to me. I could feel something stirring, amongst the 3D-printed tchotchke and ‘Duino blinky-things. The maker movement keeps growing, expanding into new corners of society, and in many ways, this year felt like a true rite of passage, a Débutante ball or Bar Mitzvah for makers. Here are some of my notes and takeaways from the weekend, with emphasis on those areas of expansion:

* From makers of things to makers of tools and hardware for making things – Those who’ve been involved in making for awhile now are starting to focus their attentions on passing on what they’ve learned, creating new tools and hardware that bring making to more people; they’re interested in “going pro.” Tuesday and Wednesday’s truly inspiring Hardware Innovation Workshop featured dozens of makers who’ve become maker pros and are doing well at it.
* Pros are understanding the R&D value of the maker movement and maker tools – One of the goals of the Hardware Innovation Workshop was to introduce mainstream tech companies to the innovations of makers and to show them how they too can use the tech being developed for more rapid R&D. The maker movement can, on a whole, be seen as one big and playful rogue R&D department. A stellar example of this is the development of game company Toys for Bob’s Skylanders title, which was very much inspired by maker tech (and used prototyping parts purchased from Adafruit!). Skylanders is now one of the best-selling video games in the world. (See some of my takeaway notes from the Hardware Innovation Workshop.)
* The distance between imagination and physical expression is getting shorter and ever-cheaper – Repeatedly, makers showing me their wares were excited to tell me how quickly they’d gone from having an idea to having a physical version of it. There really is a magical cocktail out there now of knowledge communities and resources that can teach you what you need to know, and then affordable, powerful, and accessible tools to render your ideas into atoms. Every year, the resistance between imagination to physical object gets lower.
* The four C’s of being a maker. MAKE Editor-in-Chief Mark Frauenfelder shared a list of four aspects of making during one of his talks that I really liked. They are:

Curiosity — How do things work? How are they made? How can I learn the skills I need to make one?
Control — I want to have more control over my environment, the tech in my life. I want to be able to solve problems myself instead of always buying the solutions.
Confidence — As I learn to make things, I develop a sense of self-efficacy. With every mistake I make, and every successful build, I become a better maker.
Connoisseurship — Making things myself has opened my eyes to the manufactured world around me. I appreciate things other people have made, and I am more observant of the designed and built world around me.

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One Week Left to Submit Proposals for the Open Hardware Summit! #openhardware @ohsummit

Open-Hardware-Summit-2012-Call-For-Submissions-2

Only one week left to submit your proposals for talks, posters, and demos at the 2012 Open Hardware Summit!

The Open Hardware Summit (OHS) invites submissions for the third annual summit, to be held on September 27, 2012 at Eyebeam Art + Technology Center in New York City. The Open Hardware Summit is a venue to present, discuss, and learn about open hardware of all kinds. The summit examines open hardware and its relation to other issues, such as software, design, business, law, and education. We are seeking submissions for talks, posters, and demos from individuals and groups working with open hardware and related areas. Submissions are due by May 31, 2012 BY 11:59pm (EST). Notification of accepted proposals will happen by July 8th, 2012.

Submission topics
Topics of interest for the summit include, but are not limited to:

  • Digital fabrication
  • DIY bio
  • Soft circuits
  • Wearables and fashion tech
  • Quantified-self hardware
  • Means of supporting collaboration and community interaction
  • On demand and low volume manufacturing
  • Distributed development and its relationship to physical goods
  • Software design tools (CAD / CAM)
  • DIY technology
  • Ways to share information about hardware that’s not captured in source files
  • Business models
  • Competition and collaboration
  • Sustainability of open hardware products (e.g. how to unmake things)
  • Industrial design
  • Open hardware in the enterprise
  • Specific product domains: e.g. science, agriculture, communications, medicine
  • Legal and intellectual property implications of open-source hardware
  • Open hardware in education
  • Addressing the gender imbalance in the open hardware community
  • And any other topic you think relates to openness and hardware. We want to hear all about it!

John who is helping out the summit wrote -

This year there are three types of proposals you can submit. You can propose a talk, a poster, or a project demo. The talk concept is self-explanatory. The demo sessions are just what they sound like: show off your open-hardware project! In case you need examples, here are two from last year by RobotGrrl and Chris Novello.

New for this year is the poster presentation concept — I think this has a lot of potential for sharing great ideas that might otherwise be missed. Posters fill the gap between project demos and talks. They’re less formal than plenary talks, but more conceptual (as opposed to hands-on) than demos. They give you a chance to exhibit a project or organization that you can’t physically present or which is beyond initial hardware design but not far enough along to be an auditorium presentation. If this sounds like you, consider submitting a poster presentation!

Manga Helps You Learn Surface-Mount Soldering


As electronic components get smaller, look to see more and more hobbyist kits utilizing surface mount technology (SMT) components, which attach to the surface of the PCB rather than having their leads running through holes on the board. The tininess of the components and the perceived difficulty in placing them accurately turn off many people. Hopefully, this 18-page instructional comic by Greg Peek and Dave Roberts will change their minds!

So, if reading the comic gets you amped to try it out, pick up a SMT kit and give it a try! If you can’t find anything you like, Wayne and Layne are offering two SMT variants of existing products: the Blinky Grid matrix and their Blinky POV persistence-of-vision toy are both available in SMT now.

Readers, if you know of any other cool SMT kits, leave a link in comments!

Apple iPhone Charger Teardown

iPhone charger disassembled

Great article by Ken Shirriff on the circuit and build of the iPhone charger. Like most people, I think I have taken this little device for granted for the years that I’ve owned an iPhone.

Disassembling Apples diminutive inch-cube iPhone charger reveals a technologically advanced flyback switching power supply that goes beyond the typical charger. It simply takes AC input anything between 100 and 240 volts and produce 5 watts of smooth 5 volt power, but the circuit to do this is surprisingly complex and innovative.

Ken Shirriff’s blog: Apple iPhone charger teardown: quality in a tiny expensive package

Bio Computer Germinates Plants

With every passing project I feel like my basement is being converted from a living only area, to a work and project area. Computers being built, gadgets being taken apart, Lego projects all around. I’m not complaining by any means, but I do feel as my basement becomes populated with more and more tech based projects that the environment is missing something organic, something natural to balance things out.

… at some point I started wanting to use the heat from a computer as a way to warm the soil and help with germination/growth. I’m about as far from a botanist as it comes, I did some reading online and became pretty interested in the effects of soil temperature on germination/growth. I read different studies and papers from various universities. It was not too long into that process that I became hooked on the idea of using computer heat as a way to control the soil temperature of some sort of living plant life.

[via Hacked Gadgets]

$49 Android PC from Via

For the price of a cheap date you could pick up Via’s new APC all-in-one computer. It’s about the size of a smartphone and about as powerful. It comes with Android 2.3 pre-installed, so it could make a decent media streamer or Android development platform. It comes without a case, but conforms to the mini-ITX and MicroATX formats. They’re taking pre-orders and expect to ship in July. [via geek.com]

MAKE Asks: Tricky Troubleshooting


Make: Asks is a new weekly column where we ask you, our readers, for responses to maker-related questions. We hope the column will spark interesting conversation and that we’ll get to know more about each other.

When using an XBee for the first time, I found that if I tried to run the “Hello World” code, I could only get my flashing LED to work if I unplugged one of my indicator LEDs, and vice versa. After going through what I thought was every possible troubleshooting measure, it turned out the culprit was a weak solder joint where the power was coming through. It provided enough juice for just a couple of LEDs, but no more than that. It took a while to figure out but it was one of my most maddening problems to fix.

This week’s question: What was a bug or tricky problem on a project you’ve done, and what did you finally do to figure it out and get it working?

Post your responses in the comments section.

LED Matrix Glasses

Garrett Mace was rocking a pair of LED matrix glasses at Maker Faire:

The shades are a 20×6 matrix (with some pixels missing of course) driven by SPI from an integrated Arduino-compatible in the right temple. There is a Lithium-Polymer battery on the left temple. You can charge the glasses through USB, and download new code to it over the same connection. A button on the right temple allows switching between modes or auto cycling animated patterns.

[via HaD]