22 May '16, 5am

Hackaday Prize Entry: Open Source Electrospinning Machine

Hackaday Prize Entry: Open Source Electrospinning Machine

To keep the build affordable and easy to reproduce for other makers, [Douglas] uses available materials and came up with a few design tricks that could also be applied to other projects. The belt-driven vertical axis is based on PVC pipes, on which a 3D-printed bushing block slides up and down, adjusting the distance between the nozzle and the collector plate. An acrylic door with a safety switch prevents the polymer spray from escaping from the spinning chamber. In the heart of the machine sits an Arduino Uno with a gShield, controlling the stepper motors and talking to the host computer. The 3D-printed syringe pump, a custom design, swings out from the side of the machine to allow for easy refilling. Submerged in mineral oil, which may have been chosen to reduce the risk of overheating and arcing, lies a half-wave series voltage multiplier, cranking up the voltage from a...

Full article: http://hackaday.com/2016/05/21/hackaday-prize-entry-open-...

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Hackaday Prize Entry: Internets Of Energy

Hackaday Prize Entry: Internets Of Energy

hackaday.com 21 May '16, 5am

More and more, the power grid is distributed. Houses have solar panels on their roofs, and where possible, that excess pow...

Hackaday Prize Entry: Sniffing Defibrillator Data

Hackaday Prize Entry: Sniffing Defibrillator Data

hackaday.com 23 May '16, 5am

There’s a lot of implantable medical technology that is effectively a black box. Insulin pumps monitor blood sugar and del...

Hackaday Prize Entry: A Cute Synthesizer

Hackaday Prize Entry: A Cute Synthesizer

hackaday.com 16 May '16, 5am

For electronics aficionados, there are few devices cooler than music synthesizers. The first synths were baroque confabula...

After The Prize: SatNOGS Builds Satellites

After The Prize: SatNOGS Builds Satellites

hackaday.com 20 May '16, 5am

When Hackaday announced winners of the 2014 Hackaday Prize, a bunch of hackers from Greece picked up the grand prize of $1...

Hackaday Prize Entry: DIY Ceramic PCBs

Hackaday Prize Entry: DIY Ceramic PCBs

hackaday.com 15 May '16, 5am

We’ve seen hundreds of ways to create your own PCBs at home. If you have a laser printer, you can put traces on a piece of...

Hackaday Prize Entry: Harmonicas, Candy, And Van Halen

Hackaday Prize Entry: Harmonicas, Candy, And Va...

hackaday.com 18 May '16, 5am

Right now, the design has a hopper full of M&Ms dropping through a channel where a camera looks at each individual piece o...

Hackaday Prize Entry: Worldwide Educational Inf...

hackaday.com 25 May '16, 5am

I dunno… there’s a lot of quality education available on the internet. Kahn academy and edX come to mind. Specifically, if...

Hackaday Prize Entry: Robotic Prosthetic Leg Is...

hackaday.com 26 May '16, 5am

We’ve been 3D-printing parts for self-replicating machines before, but we’ve been working on the wrong machines. Software ...

Hackaday Links: May 22, 2016

hackaday.com 22 May '16, 11pm

Lulzbot’s TAZ 6 has been released . Lulzbot’s printers consistently place in the top three of any 3D printing list, and th...

Hackaday Prize Entry: Industrial Servo Control On The Cheap

Hackaday Prize Entry: Industrial Servo Control ...

hackaday.com 24 May '16, 5am

Stepper motors are good for what they do, open-loop positioning along a grid, but as far as industrial motors go they’re r...

Hackaday Prize Entry: You Know, For Kids

Hackaday Prize Entry: You Know, For Kids

hackaday.com 02 Jun '16, 5am

Almost every connector manufacturer sells this, though maybe not in a one-pin format. They’re wire-to-board contacts desig...

Hackaday Prize Entry: ForEx Display is A Well Executed Hack

Hackaday Prize Entry: ForEx Display is A Well E...

hackaday.com 13 May '16, 5am

[Stefan] works in a place where knowing the exact state of the foreign-exchange market is important to the money making sc...

Hackaday Prize Entry: Wirelessly Charged Self-H...

hackaday.com 17 May '16, 5am

Many productive hackers bleed a dark ochre. The prevailing theory among a certain group of commenters is that they’re full...

Hackaday Prize Entry: A Low-Cost Robot Arm

Hackaday Prize Entry: A Low-Cost Robot Arm

hackaday.com 14 May '16, 5am

Robot arms are cool, and to judge from the SCARA arms and old Heathkit robots tucked away in a cupboard of every computer ...

Hackaday Prize Entry: Ears On The Back Of Your Head

Hackaday Prize Entry: Ears On The Back Of Your ...

hackaday.com 01 Jun '16, 5am

To fix this problem, he came up with a simple hack, the metrophone. An ultrasonic sensor is hung from a backpack. The user...