hackaday.com Archives - 11 March 2013, Monday

  • PCB stencils for $200

    PCB stencils for $200

    hackaday.com 11 Mar '13, 11pm

    There’s some really cool stuff to find if you wander around a Michaels craft shop or Hobby Lobby long enough. Recently, [Ben] picked up a craft cutter – a small vinyl cutter-like device meant for scrapbooking and other crafty endevours. He’s using this machine to create solder paste s...

  • One piece, 3D printed crossbow

    One piece, 3D printed crossbow

    hackaday.com 11 Mar '13, 9pm

    Centuries ago, craftsmen and smiths of all sort spent hundreds of hours crafting a crossbow. From the fine craftsmanship that went into making the bow to the impeccable smithing a windlass requires, a lot of effort went into building a machine of war. Since [Chris] has a 3D printer, h...

    1. ready-for-battle brainspl.at 14 Mar '13, 3pm
  • Hackerspace intro: HeatSync Labs

    Hackerspace intro: HeatSync Labs

    hackaday.com 11 Mar '13, 7pm

    [Todd Harrison] wrote in not with a project but with a video tour of his local hackerspace: HeatSync Labs in Mesa, Arizona. He took a camera along with him over the weekend to record what you can expect when visiting the space. You’ll find the tour embedded after the break. It starts ...

  • Building new, weird CPUs in FPGAs

    hackaday.com 11 Mar '13, 5pm

    The popularization of FPGAs for the hobbyist market means a lot more than custom LED controllers and clones of classic computer systems. FPGAs are also a great tool to experiment with computer architecture, creating new, weird, CPUs that don’t abide by the conventions the industry has...

  • Laser toting robot taunts house cat

    Laser toting robot taunts house cat

    hackaday.com 11 Mar '13, 3pm

    It’s no secret that cats have a weakness for the little red dot produced by a laser pointer. [Rodney] put that trait to work by automating the movement of a red laser pointer. After mounting it on a servo motor he got down to work programming an Arduino to move it in a playful manner....

  • Coffee pot aquarium keeps fish warm without cooking them (hopefully)

    Coffee pot aquarium keeps fish warm without cooking them (hopefully)

    hackaday.com 11 Mar '13, 1pm

    The two main components are already in place: a clear glass vessel for the water and a way to heat it. The real trick is to use the heating element to gently warm the water to the appropriate temperature. Perhaps the key piece of the project is that the device already had a timer that...

  • Launching a glider from space

    Launching a glider from space

    hackaday.com 10 Mar '13, 11pm

    The return vehicle is unpowered, but that shouldn’t be a problem as launching from a weather balloon will provide plenty of altitude for the flight. Because the temperature experienced in that part of the atmosphere is so cold [David] had to take several things into account. Obviously...

  • Makerbot shows off 3D scanner

    Makerbot shows off 3D scanner

    hackaday.com 10 Mar '13, 9pm

    Their “MakerBot Digitizer” is most likely based entirely on open source technology or readily available hardware that people have already been using for several years. And I’ll take some issue with the statement “the fact remains if you’re sourcing a 3D printer for a high school shop ...

  • Another salvo in the PIC vs. AVR holy war

    hackaday.com 10 Mar '13, 7pm

    I think the development environments and toolchains available for each platform are vital. I switched from PIC to AVR because AVR-GCC is a strong development option that lets me work on my preferred systems with no hassle — when I made the switch, the PIC dev tools were lackluster on ...

  • DIY Lighting Solutions

    DIY Lighting Solutions

    hackaday.com 10 Mar '13, 4pm

    With daylight savings time starting up, you might not have quite as much need for lighting, but this pair of hacks should keep everything well lit whether outside or indoors. Check out the videos of both in action after the break. The first lighting solution comes to us from [Ben]‘s Y...

  • Tracking a car like it were a computer mouse

    Tracking a car like it were a computer mouse

    hackaday.com 10 Mar '13, 3pm

    This is [Paul Mandel's] Ground-truth velocity sensor . That’s a fancy name for a device which tracks the movement of a vehicle by actually monitoring the ground its travelling over. This differs from simply measuring wheel rotation (which is how traditional odometers work) in that tho...

  • Android Development 101 – A tutorial Series - Hack a Day #android

    Android Development 101 – A tutorial Series

    hackaday.com 10 Mar '13, 12pm

    Android is the prime OS for developing applications in today for many reasons. The main reasons being that it is Open Source and Intuitive. In addition it uses Java for development, which is quite an easy language to get used to and develop in. This being said, a lot of you have great...

  • Oil truck transforms into giant mobile grill

    Oil truck transforms into giant mobile grill

    hackaday.com 09 Mar '13, 9pm

    [Ken Foster], owner and creator of this $40K+ beast, worked with welder [Gary Webb] to custom design and fabricate every component of the vehicle, from hinges to hydraulic systems. They claim not a single part came from a box. The cooking area, complete with speakers and spotlights, h...

  • New post: Hard drive centrifuge for sensitizing copper clad boards

    Hard drive centrifuge for sensitizing copper clad boards

    hackaday.com 09 Mar '13, 7pm

    The narration and subtitles of the video found after the break are both in Portuguese, but it’s not hard to figure out what’s going on here. He begins by using double-sided foam tape to secure the piece of copper clad board to the hard drive platters. You’ll want to center it as best ...

  • Dispensing change for low-stakes gambling

    Dispensing change for low-stakes gambling

    hackaday.com 09 Mar '13, 5pm

    Dispensing change for low-stakes gambling March 9, 2013 By Brian Benchoff Leave a Comment Every year, [Nathan] hosts an Oscar party with a lot of drinking, adoring the off-color comments of [Joan Rivers] and some low stakes wagering. Everyone throws a dollar into the pot for a particu...

  • 3D display controlled with the Leap Motion

    hackaday.com 09 Mar '13, 3pm

    Thought of the same thing aswell when i first learned about peppers ghost, but i don’t think it would work in the context your giving. you’d just get a strange image that can only be viewed from one angle, you wouldn’t be able to rotate around it and see different ‘views’ because the ...

  • Airport X-ray machine teardown

    Airport X-ray machine teardown

    hackaday.com 09 Mar '13, 1pm

    At this point the series includes six lengthy segments. The first episode, which you’ll find embedded after the break, starts with an external overview of the hardware. [Mike] mentions that it’s not functional at that point. He guesses that this has to do either with security settings...

  • Playing Led Zeppelin on a C64

    hackaday.com 09 Mar '13, 11am

    None of it is. It’s got a static sound to it because this was about the best you could by rapidly changing the volume of the SID chip to play a rudimentary digitized sample. The C64 was never designed to play digitized samples and so it was a hack that worked although very primitive. ...

  • (late) Friday link: 3D printed prosthetic hand helps out for about $150 I love this stuff.

    3D printed prosthetic hand helps out for about $150

    hackaday.com 09 Mar '13, 8am

    In regards to bandit’s comments, they are something the abled bodied community may no be able to understand. Alex’s comment goes to show that those within the disability community can’t fully understand the experiences of others within the community. I don’t think it’s not that bandit...

  • Making a Commodore 64 portable

    Making a Commodore 64 portable

    hackaday.com 09 Mar '13, 3am

    This is [Wpqrek's] Commodore 64 modified to go on the road with him . The elderly machine has a special place in his heart as it was what he learned to code on. He performed a series of hacks which house everything necessary to use the machine inside the original case. Obviously the h...

  • Printed machine does nothing until the heat death of the Universe

    Printed machine does nothing until the heat death of the Universe

    hackaday.com 09 Mar '13, 1am

    A 2:1 gear reduction slows down a spinning shaft to half speed and doubles the torque. Repeat this a few times, and you’ve got a ludicrous amount of torque moving too slowly to see with even precision instruments. That’s the idea behind [Jeshua]‘s project, a Printed Machine partially ...

  • Hackaday Links: March 8, 2013

    Hackaday Links: March 8, 2013

    hackaday.com 08 Mar '13, 11pm

    If you’re making a GPS-enabled project, you may have noticed the commonly available GPS modules are pretty expensive – usually around $50. Here’s one for $8 . It’s a U-blox PCI-5S GPS receiver on a PCI Express card. There are test points for serial and USB data, though, so fitting thi...

  • Putting yourself inside a display

    Putting yourself inside a display

    hackaday.com 08 Mar '13, 9pm

    Here’s an interesting build that combines light, sound, and gesture recognition to make a 360 degree environment of light and sound. It’s called The Bit Dome , and while the pictures and video are very cool, we’re sure it’s more impressive in real life. The dome is constructed of over...

  • Pumping 1080p video out of an FPGA

    hackaday.com 08 Mar '13, 7pm

    I recently completed a PCIe soft IP core design; the connection between the core and the PHY was 250MHz (4ns). You’re required to use time constraints (and give it an idea of how long each trace is between the FPGA and PHY) to get it to work. That was using a device without built-in P...

  • Hackerspace develops ways to get Peeps to spill their secrets

    Hackerspace develops ways to get Peeps to spill their secrets

    hackaday.com 08 Mar '13, 5pm

    You shouldn’t be surprised that the event posting starts with Peep waterboarding. But from there the rigs do get a lot more creative. For instance, the electric chair above connects the bunny to a stun gun (there’s no mention of what that big set of capacitors has to do with this. The...

  • Quick wallet hack adds pickpocket alarm

    hackaday.com 08 Mar '13, 2pm

    I had the idea to make some kind of alarm that would go off if anyone but me removed the wallet from my pocket. A quick google search revealed tons of wallet alarms, but I noticed that they all had a credit card form factor(that’s good) and would make noise when exposed to light(that’...

  • Handwriting suck? Build a machine to do it for you

    Handwriting suck? Build a machine to do it for you

    hackaday.com 08 Mar '13, 11am

    Children of the information age are doomed to have the worst handwriting just for lack of use if nothing more. But some students at Olin College harnessed technology to find a solution to that problem. Meet Herald, a CNC machine that can produce beautiful calligraphy . The machine use...

  • Human powered emergency cell phone charger

    Human powered emergency cell phone charger

    hackaday.com 08 Mar '13, 3am

    Using just a few ordinary around the house items, [The King of Random ] turned a cordless electric drill into a human powered electrical generator. If the drill is run in reverse and cranked by hand, the generated energy can be transferred through the battery terminals to a connected ...

  • Real multifunction “Sonic Screwdriver”

    Real multifunction “Sonic Screwdriver”

    hackaday.com 07 Mar '13, 11pm

    “I don’t understand, you don’t have the technology.” OK, so it’s not actually a futuristic tool with the same capabilities as the one off the hit TV series Dr. Who, but this homemade “sonic screwdriver” is a multifunction device that’s pretty cool nonetheless. Created around an Arduin...

  • BGA rework station

    BGA rework station

    hackaday.com 07 Mar '13, 9pm

    SMD components may be a little challenging for the home builder – even though the’re inordinately practical for homebrew PCBs – but if you play around with electronics and solder long enough, you’re eventually going to run into the horrors of BGA parts. Instead of convenient pins, BGA...