Sunday, March 9, 2014 - 19:01Next Weekend: The Midwest Reprap Festival
Guess what next weekend is? It’s the Midwest Reprap Festival, in Goshen, Indiana. We’ll also be there keeping tabs on an absurd amount of new RepRaps and other 3D printers, new filaments, and distributing a ludicrous amount of Hackaday swag.
The highlights of the fest include the folks from Lulzbot and UltiMachine, [Prusa] showing off his i3, [Nick Seward] and the Wally, Simpson, and Lisa RepRaps, and hundreds of other RepRappers showing off their latest projects and printers.
Here’s the best part: it’s all free! It would be cool if you register before making the trip out, but any way you look at it, it’ll be an awesome weekend. It’s also the largest US gathering of 3D printer aficionados that isn’t on the east or west coast.
Sunday, March 9, 2014 - 18:49Print the Legend: Exclusive First Look Preview
The first full-length 3D printing documentary, "Print the Legend" will make it's debut Sunday at SXSW Film as part of their Startup Alley programming focused on the intersection of entertainment and technology "shaping the means of viewing, sharing and producing content".
Sunday, March 9, 2014 - 16:15TI’s New LaunchPad and Cloud Connectivity with Exosite
After Friday’s announcement of Texas Instruments’ new Tiva C Series TM4C1294 Connected LaunchPad, we were eager to talk our neighbors in the SXSW Create tent about the board. Their tweet-up yesterday afternoon provided the perfect chance to get a few more details on the $20 IoT-focused microcontroller and its cloud […]
Sunday, March 9, 2014 - 16:00Ask Hackaday: Wiping Your Bum With An Arduino?
Over or under? Standing or sitting? Truly, toilet paper has been the focus of the most irreconcilable arguments ever. The folks on the Arduino StackExchange have a far more important question: how do you trigger an alarm when your TP supply is low?
[Asheesh] asked the Internet this question in response to his kids never replacing an empty roll. This eliminates the most obvious means of notifying someone of an empty roll – looking at it before you sit down – and brings up a few interesting engineering challenges.
Most of the initial ideas deal with weight or some sort of light sensor that can differentiate between the white TP and the brown roll. A much, much more interesting solution puts a radioactive source in the TP holder’s spring-loaded rod and uses a sensor to detect how much TP is left. A quick back-of-the-wolfram calculation suggests this might be possible, and amazingly, not too dangerous.
We’re turning this one over to you, Hackaday readers. How would you design an empty toilet paper alarm? Bonus points awarded for ingenuity and cat resistance.
Image source, and also one of the longest and most absurd Wikipedia articles ever.
Sunday, March 9, 2014 - 15:30Sneak Peek: Philips’ SlimStyle LED 60W replacement bulb review
Philips is introducing a new 60W-replacement dimmable LED bulb called the SlimStyle that looks radically different. Its design showcases a low-cost innovative approach is exactly what’s needed in the world of LED replacement bulbs. I got hold of a preliminary version and put it through its paces — before tearing it down.
Sunday, March 9, 2014 - 13:00Fetching Etchings for Stainless Steel
What do you do when you have a 10-gallon brew kettle (or any other stainless steel or aluminium thing) with no volume markings (or Hack a Day logos)? If you’re [Itsgus], you use science to etch some markings with a few household items and a 9V and you call it a day.
[Itsgus] used 1/4c vinegar and 1/4tsp of salt to form an electro-etchant and applied it with a Q-tip connected to the negative terminal of a 9V. He used tape to connect a wire between the positive terminal and the kettle. The vinegar dissolves the salt, creating negatively charged ions. Connected correctly to a 9V, the process removes metal where the current flows. If you were to connect it in reverse, you would add a small amount of metal.
The process only takes a few seconds. When the etchant starts to sizzle and bubble, Bob’s your uncle. Even though the stainless steel’s natural coat re-oxidizes over the etches, you should probably wash that thing before you brew. If you prefer adding metal to removing it, try electroplating copper on the cheap.
Sunday, March 9, 2014 - 12:00StarBots Animatronic Kits: Another Kickstarter Success Story
Sunday, March 9, 2014 - 10:00Another Awesome Electronics Lab in a Box
We called, and [Brian Zweerink] answered! Here’s another awesome example of making an electronics lab in a box!
But first off, who the heck is [Brian Zweerink]? He’s a fellow who helped us win the Redbull Creation Challenge of 2012 by building and programming the circuits for The Minotaur’s Revenge Dueling Labyrinths! We really need to do stuff like that again… What do you guys think?
Anyway, back to the hack. [Brian's] version of the Make Your Electronics Lab in a Box, is similar, but also unique. What we like about his version is the electrical outlets inside the box for plugging in tools, the super-handy-stash-away-magnifying-lamp, and the size of his box; lots of room for storing components up on the top shelf! The only thing he’s missing is his oscilloscope, which was a bit too deep for the box, so it had to stay separate.
What do you guys think?
Filed under: tool hacks
Sunday, March 9, 2014 - 08:00Mars One Way: Meet the people who want to go to Mars and never come back
There were 200,000 people who applied to participate in a project called Mars One. It’s a private enterprise to establish a permanent human settlement on Mars and film a reality show along the way. The idea is to go in crews of four starting in 2024. The thing is, right now the technology can only get them there. “Mars One Way” documents the thoughts and theories of Five hopeful Mars One astronauts as they contemplate the reality of leaving planet Earth forever, for a new home on Mars.
Sunday, March 9, 2014 - 08:00Two artists live in a giant hamster wheel
Meet artists Ward Shelley and Alex Schweder. They’ll be living in a giant hamster wheel for ten days. via Animal:
“A lot of people associate it with 2001: A Space Odyssey. Others think of a hamster wheel,” artist Ward Shelley tells ANIMAL, standing 25 feet above ground, perched on top of a large wooden wheel where he has been living for four days. Inside the wheel is partner artist Alex Schweder. For ten days, the artists are eating, sleeping and pissing in/on the installation they’ve constructed at Williamsburg’s Pierogi Gallery.
This is the fourth collaboration between Shelley and Schweder in a series they call “The Social Relationship Architecture Project.” Each time they’ve built a different dwelling space that requires them to work together in order to live. This time, they’ve arranged the various components and furnishings of a home on a giant wheel. “In Orbit is a two bedroom apartment, in a sense,” Schweder says. “One is on the inside and one on the outside.”
Sunday, March 9, 2014 - 07:00Vintage Vertical Nixie Clock
There’s no shortage of Nixie-related projects online, but this vertical wall clock is a solid build and looks pretty sleek. [andreas] actually sourced the wood from an old handrail, into which he drilled six holes for the tubes with 30mm bits, then treated it with some woodworm poison after noticing holes his drill wasn’t responsible for.
The schematic is what you’d expect for a Nixie clock, designed with 123D circuits. [andreas] provides both top and bottom layers in a high-res PDF if you’d prefer to etch your own boards at home rather than order a PCB from the man. He took the finished board and soldered all the components in place, using tape to prevent some short circuit possibilities and mounting the result onto a pair of black plastic rails. The entire assembly mounts to the wooden case and is rounded off with glued-on end caps and a back cover. As always, be aware of the danger presented by the high voltage requirements of Nixie Tubes, and don’t go licking the components.
Filed under: clock hacks
Sunday, March 9, 2014 - 07:00Scientists Create 3D Printed Heart Membrane That Can Keep Heart Beating Perfectly Forever
The video above is showing a rabbit’s heart beating perfectly outside of the animal’s body. The circuit lined, stretchable membrane covering it is allowing it to stay alive and to pump blood on its own. This incredible device was developed by scientists at the University of Illinois at Urbana-Champaign and Washington University in St. Louis by scanning the heart and creating a 3D printed model to act as a mold from which the membrane is cast and then integrated with the actual organ. It could become available to human hearts within the next 10 to 15 years.
This device is not just a custom-made pacemaker. According to University of Illinois’ materials researcher John Rorgers, co-leader of the team who has developed this device, it’s like an artificial pericardium, the natural membrane that covers the heart:
“But this artificial pericardium is instrumented with high quality, man-made devices that can sense and interact with the heart in different ways that are relevant to clinical cardiology.”
Washington University’s biomedical engineer Igor Efimov says that it is a huge advancement. The circuits you’re seeing are a combination of sensors that constantly track the tissues’ behavior and electrodes that precisely regulate the heart muscles movement:
“When it senses such a catastrophic event as a heart attack or arrhythmia, it can also apply a high definition therapy. So it can apply stimuli, electrical stimuli, from different locations on the device in an optimal fashion to stop this arrhythmia and prevent sudden cardiac death.”
Sunday, March 9, 2014 - 06:00Time Magazine | Gigapan | 1 World Trade Center
Sunday, March 9, 2014 - 06:00New App Can Help You Double Your Reading Speed in Minutes
Check out this clever brain hack! A new app making its debut onto Samsung devices, Spritz, promises to help users increase their reading speed to up to 1000 words per minute, roughly the equivalent of an entire Harry Potter novel in a little over an hour. The app works by removing the need for the eyes to scan through lines of text by setting an ideal recognition point for each word and then flashing the words on the screen at a controlled speed. From PCMag:
The technology “removes the inconvenience of scrolling, swiping, squinting and pinching to read on your devices by streaming individual words, one by one, at the user’s desired speed,” according to the Boston-based startup. Developed and tested for more than three years, the technology allows the brain to focus on each word, promoting faster reading and higher information retention.
The most time-consuming part of reading is the eye movement from word to word, Spritz said. The company’s technology takes eye movement out of the equation by streaming individual words inside of a special display called a “redicle,” which helps the eyes position themselves at the exact recognition point for each word.
When testing the app, Spritz found that new users were able to learn how to “spritz,” and double their traditional reading speed, in just a few minutes.
Sunday, March 9, 2014 - 04:00A Cocktail Shaker With Android And Arduino
The most rewarding part of any project must be sitting down to see the fruits of your labors set in action for the first time and relaxing with a nice drink. [Tony DiCola] is really showing off his ability to think ahead, because his smart cocktail shaker takes care of the post-build celebration, measuring out drinks with exacting precision.
The build measures out precise amounts of any liquid with the help of a small electronic scale [Tony] picked up from Harbor Freight. Instead of trying to interface with the electronics in the scale, he instead connected a INA125 instrument amplifier to the load cell. An Arduino micro measures the weight on the load cell, and with the known densities of gin, vermouth, and Kahlua, [Tony] can get a very good idea of how much liquid is in the cocktail shaker.
The really neat part of this build is the interface: [Tony] wrote an Android app for his tablet that talks to the Arduino with an Adafruit Bluefruit Bluetooth adapter. The app receives the current weight on the load cell, displays the current amount of liquor in the cocktail shaker, and provides step-by-step instructions for making any cocktail.
It’s a handy little device to keep around the liquor cabinet, and with an absurd amount of pumps and valves could easily become the basis for a very cool cocktail bot.
Sunday, March 9, 2014 - 01:00Automated Phone Cracker/App Tester Steps it Up a Notch
Delta robots like this automated phone tester are awesome: high speed, accuracy, and mesmerizing to watch. [Justin Engler], a security researcher from ISEC Partners (also speaks at DEFCON on occasion) needed a robot to help with repetitive testing. He contacted the folks over at Marginally Clever to see if they could help him out, and they came up with this slick delta robot.
Normally they build these robots out of plywood, but [Justin] requested a bit more of a modern look, and although it looks blue, it’s actually clear acrylic: they haven’t removed the protective film yet. The robot is quite functional, but [Justin] plans on upgrading it in the future to increase the top speed. It currently has a built-in camera, using OpenCV to watch the log-in screen as it tries every combination as quickly as possible.
Stick around to see it in action!
[Justin] and his robot will be at SXSW on Saturday, March 8 if you want to see it in person. Plus maybe you’ll see us there!
Saturday, March 8, 2014 - 23:27Calling All Austin Makers! SXSW 3D Printed Scavenger Hunt
Saturday, March 8, 2014 - 22:24Join FAA-Conquering Drone Lawyer Brendan Schulman in a Conversation with MAKE
Bring on the drones! This weekend MAKE has been taking to the air at SXSW, and along with our flight demonstrations, we’re excited to have a visit from drone lawyer Brendan Schulman, one of the foremost legal experts in the field of unmanned aircraft use who just won the first-ever […]
Saturday, March 8, 2014 - 22:00The Tannin DIY MIDI Controller
[Shantea] needed a DJ controller. While there are commercial controllers out there, none of them fit what he was looking for. He solved the problem by building the Tannin DIY MIDI controller. Tannin features 19 buttons, 16 potentiometers, and 4 LEDs. Buttons can send different MIDI messages for short presses and long presses. Pots can send 6 note on/off messages as well as MIDI control messages depending on their position. The LEDs blink in beat with the MIDI in clock. Everything is programmable and can be mapped thousands of different ways. The heart of the system is an Arduino Nano. [Shantea] used the hairless-midi library to convert MIDI to serial. The Arduino interfaces to a PC via serial over USB. On the host PC side, he ran loopbe30 to create a virtual MIDI cable to Traktor, his DJ software.
We love a build that looks just as good on the inside as on the outside, and Tannin doesn’t fail to impress in this respect. The frame is MDF, and the control panel is laser etched plastic on 3mm of Plexiglass. We really like Tannin’s flavone flair. Inside the case, wiring is kept organized and neat by zip ties and strips of wood below the button grid. [Shantea] had some noise issues connecting pots to flying wires, so he used a custom printed circuit board with a ground plane to gang the pots into 2 banks of 8. The results are something any controllerist would be proud of. Click past the break to see Tannin in action.
Filed under: musical hacks
Saturday, March 8, 2014 - 21:53Spark Boulder is Giving Student Entrepreneurs a Home #makerbusiness @bfeld
One of the key components of any university is space for studying, acting, writing, and painting – but what about space for starting up companies? The University of Colorado Boulder has been at the forefront of breeding and teaching entrepreneurship for many years now, but it has been missing a communal area where student entrepreneurs can work, gather, and live.
Enter Spark Boulder. Spark is the first space dedicated for startups and entrepreneurially-minded students at CU. The community has really rallied together to make this happen – Spark’s founders, a set of students and alumni who buy into the concept of “doertocracy,” have the support and involvement of both on-campus and off-campus organizations.
Entrepreneurial energy is nothing new to CU; its community is recognized as one of the most vibrant in the country, its resources are now blossoming in something substantial, and its students are more entrepreneurial minded and motivated than ever. Giving this community, these students, and these resources a space to live is the next step to developing more viable startups at CU.
Spark Boulder opened it’s doors on 2/21 and it’s already become the home for student entrepreneurs that the founders envisioned.