• Vendredi, Avril 18, 2014 - 01:00
    The Persistence of Jumping Rope

    POV Jump Rope

    [Antonio Ospite] recently took up jump rope to increase his cardio, and also being a hacker decided to have some extra fun with it. He’s created the JMP-Rope — the Programmable Jump Rope.

    He’s using the same principle as a normal POV (Persistence of Vision) display, but with a cool twist. He’s managed to put the microcontroller (a Trinket) and battery into the handle of the jump rope. Using a slip ring system, the RGB signal gets passed to the rope, which contains the LEDs. It’s a pretty slick setup, and he’s written another post all about how he did the hardware.

    To create the images for his JMP-Rope, he’s outlined the steps to a successful POV image on his blog. These include re-sizing the image to a circle (duh), reducing the color palette, and then performing pixel mapping using a discrete conversion (from polar to Cartesian coordinates). After that it’s just a matter of representing your new-found pixel map in a 1D animation, played column by column. [Antonio] stores these frames on the micro-controller as an RLE (run length encoded) indexed bitmap.

    Stick around to see how he made it, and some other cool examples of what it can do!


    Diagram of Persistence of Vision Jump Rope

    Diagram of Handle

    The resulting images from his JMP-Rope are pretty impressive — it almost looks like Firefox was made for a POV display!



    [Thanks Alan!]

    Filed under: led hacks

  • Vendredi, Avril 18, 2014 - 00:11
    Completed Cupcade – The mini Arcade with a Raspberry Pi @Raspberry_Pi #raspberrypi


    egutting writes in…

    Just wanted to let you know I completed mine and it’s in working order. Didn’t have any problems at all as the directions were great and had experience with this “type” of case with the ice cube clock.

    1783 hands

    1783 joust

    1783 parts

    NEW PRODUCT – Cupcade: the Raspberry Pi-Powered Micro Arcade Cabinet Kit – Beta: Never be bored again with an adorable little arcade cabinet you can fit in your bag! This Raspberry Pi-powered kit combines our sharp PiTFT 2.8″ display, mini thumbstick, and mini arcade push buttons and a whole bunch of components to create the most adorable MAME cabinet in the known universe.

    Comes as a big kit with lots of parts including all electronic components, the laser cut case, power adapter, and a pre-burned SD card that is plug-and-play ready. You provide a Raspberry Pi model B, a soldering iron, solder, wire, basic electronic hand tools, tape, etc. This is the beta kit, which works great but is a little advanced and not good for beginners! We’ll be planning out a version with more of the circuitry pre-built in the future. For now we only recommend this project for people who have soldered before and even better, have a little Raspberry Pi/Linux hacking under their belt in case some configuration-file-editing is required. Give yourself a nice long Saturday afternoon to put together (about 4-6 hours altogether).

    We played a bunch of memorable old arcade games, like Ms Pacman, Galaga, Donkey Kong, Arkanoid, DigDug, etc with squee success but some games that are more advanced might be too slow even with overclocking the Pi. There are four buttons total, two next to the joystick for “fire” and “jump” and two in front for “coin” and “start”.

    Many details stand out here that show the love and care PaintYourDragon put into this kit.

    • First: you can configure it for either vertical (Ms Pac-man! Arkanoid!) or horizontal screen (Joust! Qix!). The controls can be set to either joystick-in-center or to the side. We include plastic for both configurations just pick which you want during construction.
    • Second: The SD card comes with a text-based MAME ROM selector screen that works in either V or H mode, with nicely printed out names and joystick/button selection.
    • Third: Pressing the two front buttons for three seconds simulates the Esc key, so you can quit games and safely shut down the Pi without use of a keyboard.
    • Fourth: To load new ROMs, simply plug in the SD card into any computer and drag the zipped up files into the directory, no need for WiFi, logging in or any other nonsense!
    • Fifth: What’s gaming without the noise? There’s a mono speaker and audio amp so you can relive all the bleeps

    Excited? You should be! And since you’re so interested, check out the ultra-detailed tutorial with build photos, instructions, and more!

    Don’t forget, a Raspberry Pi Model B is NOT included!

    In the Adafruit store!

  • Jeudi, Avril 17, 2014 - 23:00
    DIY Replica of Joffrey Baratheon’s Crown

    joffrey's crown

    Joffrey Baratheon may be a despicable character, but the king does have nice threads. He wears richly embroidered tunics and an intricate crown – it’s understandable if you want to dress like him. Instructables user xeijix came up with a 3D model to print the crown on a PP3D printer. The printer worked on one half of the crown at a time; here’s what he did to assemble them:

    After removing the scaffolding, I needed to sand the the crown a bit.

    The crown from the show had a lot of textured marks on the crown, I opted not to add those textures. For my purposes, it wasn’t that important.

    After sanding, I glued the pieces together with superglue.

    I painted the crown with a can of Krylon gold spray paint.

    After it’s painted, you could add pre-made jewels from the craft store or you could cast your own with resin and pigment.

    Read more at Instructables.

  • Jeudi, Avril 17, 2014 - 22:06
    NEW PRODUCTS – SMT Test Socket – TSSOP-16 and SMT Test Socket – Medium SOIC-8 (200mil)

    1795 1796 isosforblog

    You know those ZIF sockets we have for DIP chips? Well these are just like that but for SMT parts!


    NEW PRODUCT – SMT Test Socket – TSSOP-16: Now you can program and test out your favorite new parts in TSSOP packages. This test sockets is good for any 4.4mm / 0.147″ wide TSSOP/SSOP with up to 20 pins. Simply press down on the top, place the chip in carefully and then release to latch the chip in. The chip is held securely against gold ‘fingers’ in the socket. Please note the body of the chip you’re trying to use and read the datasheet diagrams carefully – a chip with a body wider than 4.4mm not fit!

    The socket is soldered onto a pair of PCBs that turn it into, essentially, a 20 pin DIP with 0.6″ spacing that can be breadboarded fairly easily.

    In stock and shipping now.


    NEW PRODUCT – SMT Test Socket – Medium SOIC-8 (200mil): And you can program and test out your favorite new parts in SOIC-8 or smaller packages. This test socket is good for any SOIC/SOP “Medium” chip in a 200mil wide body that has 8 pins. Simply press down on the top, place the chip in carefully and then release to latch the chip in. The chip is held securely against gold ‘fingers’ in the socket. 150 or 300mil wide chips will not fit, but we do have other sockets for narrow/wide SOIC chips.

    The socket is soldered onto a pair of PCBs that turn it into, essentially, a 20 pin DIP with 0.6″ spacing that can be breadboarded fairly easily.

    In stock and shipping now.

    Both of these test sockets are high quality, Japanese construction from Yamaichi

  • Jeudi, Avril 17, 2014 - 22:00
    Interactive 3D Projection is Foggy At Best

    fog proj

    Have a projector and a smoke machine handy? You might want to give this fog projection thing a shot! It’s called the MisTable and it’s a three-dimensional playground for interactive manipulation of images.

    It’s a project by Bristol Interaction and Graphics group of the University of Bristol, and it’s an interesting twist on 3D projection. They’ve created what they call the MisTable which features a smoke machine, “smoke screens”, and three projectors. What it results in is an interactive table for two people. The tabletop surface is a display, as is the see through fog in front of each person (the “fog screens”).

    While it is fairly easy to understand and explain, there’s a handy diagram after the following break showing how the system works. Our question is, when are one of you guys or gals going to try making one?


    For a much clearer hologram-esq projection, there’s always glass like in the Pepper’s Ghost Illusion! But we have to admit being able to reach through the screen with the MisTable is pretty neat too.

    [Thanks Douglas!]

    Filed under: Tech Hacks, video hacks, Virtual Reality

  • Jeudi, Avril 17, 2014 - 20:59
    Several Techniques to Produce Laser Cut Helical Springs! #3DThursday #3DPrinting


    Fascinating tutorial documents a few routes to produce working slinkies, from 3D printing to laser-cutting acrylic , and cardboard shipping tubes:

    I created the helical spring GIFified1 [below] by using the Trotec rotary attachment in a Speedy 300 to laser cut a 3D printed PLA plastic tube.

    It is one of many helical springs I’ve laser cut over the past three months2. The springs vary in design and material – so far, I have used 3D printed PLA, clear acrylic, and cardboard shipping tubes. Take a look at the [top] picture for a sneak peak of the whole collection.

    The 3D Printed / Laser Cut Spring concept is pretty cool, I think, and a decent lead in because it’s recognizable, but definitely not what I’m most excited to show in this Instructable. So before I lose you, scroll down to Step 1 and check out the wave springs. Lots more pictures and videos after that. Eventually, I’ll give an explanation of how they are made

    Check out the full details for how they are made and how they work at Instructables!

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  • Jeudi, Avril 17, 2014 - 20:50
    NEW PRODUCT – PrintrBot Simple Metal 3D Printer – Black – Assembled


    NEW PRODUCT – PrintrBot Simple Metal 3D Printer – Black – Assembled: New from Printrbot, the Metal Simple is a brand new rock solid, all metal, fully-assembled Printrbot Simple! As opposed to the Printrbot Simple Kit, all of the laser cut wood parts have been replaced by rock solid metal and assembled. In fact, the total number of parts have been reduced to just a fraction of the wooden model. The all metal construction combined with a GT2 belt pulley system produces a 3D print that rivals those of other manufacturers which cost thousands more!


    The Printrbot Simple is an exercise in 3D printing minimalism. It includes only what is needed to get started in the world of 3D printing. With the All-metal Printrbot Simple you’ll have a fully-functioning 3D printer that weighs only 12 lbs and fits nicely on your desk!


    In stock and shipping now.

  • Jeudi, Avril 17, 2014 - 20:00
    3D-Printing Product DIY Hacking Off-the-Shelf Products with 3D Printed Parts @ Takt Project #3DxProductDesign #3DThursday #3DPrinting

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    3-Pring Product DIY Hacking Off-the-Shelf Products with 3D Printed Parts @ Takt Project:

    3-PRING PRODUCT is a new D.I.Y. idea proposal that can change the usage of the product, or pursue user’s own better usability by adding 3D-printed parts to ready-made products. This time we used ready-made products of MUJI as an example.

    Just like ‘Sampling Techniques’ in music industry which creating a new track by quoting tracks or sounds in the past, create an original product with adding own made parts while quoting ready-made product. In this instance, We treat a 3D printer as a music instrument that can enhance the prospect exponentially for this ‘sampling’ process.

    With making joint parts for plastic product, or parts which utilized size that is peculiar to ready-made product by 3D printer, it expand the possibility of incubate a new kind of customizing at this 3D printer generation.

    From this perspective, the products in stores are not so much completed product but semifinished product, in another words, we can retake them as a material for new creation. This kind of changing perspective is that we wanted design through this project, and we also think there are possibilities for new creation regarding products in intermediate region where connect between ‘consumer’ and ‘manufacture’, not a choice between the two of them….

    Read More.

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  • Jeudi, Avril 17, 2014 - 19:44
    Women Techmakers: Make your passion – features @adafruit Ladyada!

    Women Techmakers: Make your passion (video).

    We’re all driven by passion. Hear from innovative women leaders as they share their personal stories, solutions, and impact on the technology industry. Featuring:

    Suzanne Xie (Founder and CEO of Hullabalu)

    Jeannie Yang (Chief Product and Design Officer at Smule)

    Kelly Ellis (Software Engineer at Google)

    Brynn Evans (Design Lead at Google)

    Limor Fried (Lead Engineer and Founder at Adafruit Industries)

    Ashley Gavin (Director of Curriculum at Girls Who Code)

    Shannon Spanhake (Deputy Innovation Officer for the City of San Francisco)

    Joanna Smith (Developer Programs Engineer at Google)

    Mary Lou Jepsen (Head of Display Division at Google[x])

    Megan Smith (Entrepreneur at Google[x])

    Jay Wong (UI Designer and Prototyper at Google)

    Bandana Malik (Student at The Flatiron School)

    Jenny Young (Owner of Brooklyn Robot Foundry)

    Heidi Zak Spector (Co-Founder at ThirdLove)

    Aminatou Sow (Founder of Tech LadyMafia)

    Cassandra Dixon (Support Engineer at Fastly)

    Natalie Gordon (CEO and Founder at BabyList)

    More @ Women Techmakers & Google+

  • Jeudi, Avril 17, 2014 - 19:30
    Iron Man Mk 3 by RoboGenius #eggbot

    Ironman eggbot

    Iron Man Mk 3 by RoboGenius @ Thingiverse:

    Designed for The Original Egg-Bot Kit.

    Colors are Sharpie Ultra Fine unless otherwise noted.

    4 Color-Layer Plot

    1. Banana Clip Yellow
    2. Rose
    3. Red
    4. Black

    Read more.

    Source for Eggbot Trace

  • Jeudi, Avril 17, 2014 - 19:30
    What happens if you expose a Peep to vacuum?

    And now you know :)

  • Jeudi, Avril 17, 2014 - 19:10
    Updates – Alternatives to ULINE shipping supplies – shipping boxes, packing materials and mailing supplies #makerbusiness #manufacturing @uline

    Uline Alternatives-1

    Some maker biz folks sent some suggestions for ULINE packaging alternatives, here are some more resources!

    Here are our reps for the companies we use.

    Cornell-Robbins Paper and Box Company

    Phil Robbins

    Staples Industrial

    Joe Berardi



    Newark / element14


    Global Industrial


    Do you have a favorite supplier? Remember, post up in the comments here or on Google+ !

  • Jeudi, Avril 17, 2014 - 19:00
    60 NeoPixel Ring Camera Mount


    You can build this massive camera light with our 60 NeoPixel ring. This camera ring update works with ANY DLSR and ANY lens.
    Adafruit NeoPixel 60 Ring GIF

    Perfect for macro photography, this light gives a signature ring around your eyes, making an awesome lighting effect.

    A 3d printed light ring adapter holds the electronics and mounts to any dslr hot shoe.

    Check out the circuit diagram and full tutorial on The Adafruit Learning System

    Macro Photography with Adafruit NeoPixel Ring

  • Jeudi, Avril 17, 2014 - 19:00
    Using Non-Crappy Software With The Da Vinci Printer


    The Da Vinci printer from XYZprinting is turning out to be one of the best buys in the world of cheap, consumer printers. Sure, it uses chipped filament, but that’s an easy fix for anyone who knows what a .hex file is. And yes, the Da Vinci host software is a mess of proprietary garbage with limited functionality, but [Mark] has figured out a way around that.

    When [Mark] received his Da Vinci, he immediately started snooping around inside the printer’s guts, like any good tinkerer should. He found an SD card holding all the sample prints that ship with the printer, all in a convenient Gcode format. Inside these sample .STL files were all the calls you would expect – setting the temperature, changing the layer height, and all the other good stuff you’d find in any other RepRap.

    With a little bit of modification to .STL files generated by any slicing program, [Mark] isn’t limited any more by the terrible host software that ships with the Da Vinci. Combine this with the ability to reset the chip inside the filament cartridge, and [Mark] has a printer at least as functional as any open hardware model.

    Filed under: 3d Printer hacks

  • Jeudi, Avril 17, 2014 - 19:00
    3D Printed Frog Dissection Kit – Printed Curriculum Unit #3DxEducation #3DThursday #3DPrinting

    After the MakerBot Frog Dissection Kit launched on Thingiverse in early March, a number of variants were produced by the community including the Flexy-Frog (video above) printed by Gyrobot. It was printed at 80% scale in 1.75mm using Filaflex from Recreus. “Adds that extra bit of flexible realism.” Check out details from the original kit launch below!

    The MakerBot Frog Dissection Kit is the first 3D printable curriculum unit for teachers and their students to download and 3D print in the classroom. Now you can teach students about basic anatomy without having to deal with the yuck factor of dissecting a real frog!

    This Frog Dissection Kit includes a lesson plan for teachers, digital files to 3D print a large, life-size frog body, and six 3D printed organs that fit together like puzzle pieces. Download the files, let us know how it prints, and stay tuned for more enriching educational experiences from MakerBot Academy.

    Read More.

    Frog dissection kit


    Every Thursday is #3dthursday here at Adafruit! The DIY 3D printing community has passion and dedication for making solid objects from digital models. Recently, we have noticed electronics projects integrated with 3D printed enclosures, brackets, and sculptures, so each Thursday we celebrate and highlight these bold pioneers!

    Have you considered building a 3D project around an Arduino or other microcontroller? How about printing a bracket to mount your Raspberry Pi to the back of your HD monitor? And don’t forget the countless LED projects that are possible when you are modeling your projects in 3D!

    The Adafruit Learning System has dozens of great tools to get you well on your way to creating incredible works of engineering, interactive art, and design with your 3D printer! If you’ve made a cool project that combines 3D printing and electronics, be sure to let us know, and we’ll feature it here!

  • Jeudi, Avril 17, 2014 - 18:30
    New Project: Vinyl Digitizer Phono Preamp

    Vinyl DigitizerWith the Vinyl Digitizer Phono Preamp, you can "dub" records onto your computer and convert the sound files for your phone, MP3 player, car, or anywhere else you need music.

    Read more on MAKE

  • Jeudi, Avril 17, 2014 - 18:28
    OpenStack Study Group ( May 21 )

    Above is a photo of the building that OpenStack ( nova at least ) was born in. That’s node number 6 on the internet, and the home of E root server. The dishes while no longer in use, used to provide internet to places like scandanavia. I also used to work there, as part of the Nebula Project.

    Today the OpenStack foundation released their latest version of the software, code named Icehouse. Named for a street in Hong Kong ( where the last developers summit was held ). Many are just calling it Igloo because it’s easier. Anyways, to celebrate the new release of OpenStack, I’ll be trying to start up an OpenStack study group.

    That will be on May 21st starting at 6:00 PM ( 18:00 ).


    Read on for more detailed information…

    About the event.

    This first meeting will be fairly informal. An introduction to the group and the world of developing for OpenStack. If it looks like we’ve got a solid group of folks, I figure we’ll get a better sense of what it is we want to do going forward. For me, I’d like to setup a once a month block of time to hang out with other OpenStack folks and share notes or just hack away on ‘all the things’. I’d love to also maybe setup a show and tell time as well. So that folks who want to show off some code, or some project can do so. But very informal. IE no vendor pitches =P

    Who should come?

    Please only rsvp if you intend to come and really are interested in getting your hands dirty. This is not a networking event, or a sales pitch, or a recruiting opportunity. This is hackery. Pure and simple.

    I figure you’ll need to have at least some rudimentary grasp of python and a pretty solid understanding of Linux operations and networking. I figure most people who would be interested would have exposure to OpenStack or similar software such as CloudStack, Eucalyptus or maybe even Ganeti.


    May 21, 2014, 6pm till we get tired ( 9:00 or so I would imagine )


    At NYC Resistor. 87 3rd Ave 4th Floor ( no elevator we use stairs ) in Brooklyn NY. This is about three blocks from the Atlantic Pacific street station near the Barclays center.

    NYC Resistor is a somewhat famous hackerspace with a focus on learning, making, and sharing.

  • Jeudi, Avril 17, 2014 - 18:26
    MakerBot Retail | Yale’s Eberhart to Speak in Greenwich


    From Early Adopter to 3D Printing Master
    John Eberhart, a lecturer at the Yale School of Architecture, remembers a time when the only tools available to an architecture student were two hands and a lathe. Times have changed.

    Join us at the MakerBot Retail Store in Greenwich, CT this Thursday, April 24th and discover how Eberhart is using MakerBot Desktop 3D Printers to change the way students think about architecture. Eberhart will discuss his 15-year career as a professional architect and instructor at the Yale School of Architecture. Click here to register.

    Eberhart was always an early adopter. He began his career at Yale as a student of architecture and was the first in his class to use a 3D computer rendering to present his final project. Yale hired Eberhart right out of college, and he got to work making the architecture program one of the most technologically advanced in the country. He even purchased a high-end 3D printer in 1999. However, there was one big obstacle: cost.

    “Yale architecture students have to pay for their own building materials, and our earlier 3D printers ran students $200-400 per print,” Eberhart explains. Those prohibitive costs are a thing of the past and Eberhart’s students have made thousands of successful prints since he purchased his first MakerBot Replicator 2 Desktop 3D Printers last year.

    MakerBot Replicator 3D Printers Unleash Student Creativity
    The ability to 3D print early iterations of a design gives students the opportunity to incorporate greater personality, risk, and creativity into their conceptual drafts. Eberhart says that many students are taking advantage of the broader range of possibilities by letting their imaginations run wild. In the past few years, he’s seen more elaborate lattices, curvy Frank Gehry-esque designs, and far-out concepts than ever before.

    Don’t miss John Eberhart’s lecture and Q&A this Thursday at the MakerBot Retail Store located at 72 Greenwich Avenue, Greenwich, CT.

    Register here.


  • Jeudi, Avril 17, 2014 - 18:00
    A Viral Marketing Gag Uses 3-D Printers and Rubber Chickens #3DxMarketing #3DThursday #3DPrinting

    A Viral Marketing Gag Uses 3-D Printers and Rubber Chickens. From Wired:

    When was the last time you talked about your favorite cracker on Twitter? It’s a dry subject and the marketing team responsible for promoting Nabisco’s new Belvita brand crackers knew that their key selling point, “Nutritious sustained energy all morning,” wasn’t going to light the social web on fire without a little help. Instead of following their traditional strategy of minting coupons or, God forbid, coming up with a strategy involving QR codes, Belvita decided to embrace 3-D printing in a crassly commercial, and wildly successful, ad campaign.

    Creative agencies Droga5 and Fake Love took on the challenge of making this vision a reality by turning to Twitter and encouraging people to share their greatest morning accomplishments—say nailing the perfect pour-over or starting their commute just as a fist-pumping anthem came on the radio. Cracker enthusiasts the world over started responding with their stories, encouraged by celebrities like Jane Lynch and Mario Lopez, using the hashtag #MorningWin.

    The agencies hired actors, complete with props ranging from spatulas to rubber chickens, to act out the best scenarios. Each tableau was scanned, 3-D printed, spray painted gold, affixed to a trophy, and mailed to the person who inspired it. Virtual trophies were awarded on Facebook and people were delighted to receive validation of their life’s minutiae in miniature plastic form.

    Belvita’s brand managers imagined the printing happening on a sterile soundstage and shooting footage for a commercial, but the creatives at Fake Love had an idea that would expand the campaign’s reach into the real world. They rented a store front in New York City and set up a shop that was equal parts art gallery and bakery. Inside the store, visitors could observe actors clad in fluorescent green unitards pantomime tweets from followers across the globe. Passersby could watch a bank of printers transform the outlandish ideas into objects in the store’s window….

    Read more about the background to the campaign and how they executed it here.

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  • Jeudi, Avril 17, 2014 - 17:49
    NEW PRODUCT – Small Enclosed Piezo w/ Wires


    NEW PRODUCT – Small Enclosed Piezo w/ Wires: This small (14mm diameter) piezo element is nicely enclosed so you can attach easily. Piezo elements convert vibration to voltage or voltage to vibration. That means you can use this as a buzzer for making beeps, tones and alerts AND you can use it as a sensor, to detect fast movements like knocks. You can also use it under a drum pad to make a drum/crash sensor

    It’s rated for up to 9Vpp use but you can also use 3V square waves and its plenty loud. For music use with an Arduino, check out the Tone tutorial. For sensing, the Knock tutorial is your guide! There are thin wires attached, we plugged them into a solderless breadboard, but they might too thin to plug in directly into the Arduino socket headers.


    In stock and shipping now.