The world’s smallest phone charger

http://www.3ders.org/articles/20150819-3d-printing-helps-uk-designers-develop-the-nipper-the-worlds-smallest-phone-charger.html

3D printing helps UK designers develop The Nipper, ‘The World’s Smallest Phone Charger’

When considering that nearly everybody carries a smartphone these days – in addition to their keys and wallet – it makes perfect sense why so many designers and manufacturers have been actively designing accessories ranging from speakers and cases to stands and sleeves for the mobile devices.  However, the one problem that everybody runs into is also among one of the most difficult to solve: battery life.

Inspired by the need to create a portable, on-the-go power solution for smartphone users that doesn’t involve carrying bulky cases or powerpacks, designers Doug Stokes and Chris Tait of Design on Impulse in the UK recently created what they are calling “The World’s Smallest Phone Charger” – AKA “The Nipper”.

Consisting of two AA batteries and a magnet that reside on a user’s keyring (the batteries are only installed when in use), the 10 gram Nipper is capable of charging smartphones while users are out and about or perhaps most importantly – during an emergency situation.

“The Nipper was primarily designed for emergency use,” explain the designers.

“When all else fails, when all hope is lost – in situations where you desperately need to use your phone but have no access to laptops, electrical sockets, wind turbines or solar panels the Nipper will be there for you.”

The design of the Nipper contains 3 neodynium magnets that are responsible for both making an electrical connection to the circuit board as well as holding the batteries together.  According to the designers, the circuit is actually a “boost converter” that converts the power from the batteries into a 5v power supply to charge your phone.  For today’s modern smartphones, this means that the batteries can supply an additional 10% battery capacity in 30 minutes, and 20% in just over an hour.

Like so many other hardware developers today, Stokes and Tait turned to 3D printing to make their idea for the World’s Smallest Phone Charger real – and have put the concept on Kickstarter to help it gain some traction; already, the campaign has surpassed their $10K goal by more than $3K and it has three weeks left to go.

“If we’re making small volumes of Nippers, we’ll 3D print the cases out of high quality nylon, but if demand is high and we have to make a full Nipper army we’re going to injection mold the cases out of polypropylene,” says the designers.

“The two halves of the Nipper are connected by either fabric or genuine leather straps. The neodynium are nickel plated on the classic Nippers, and gold plated on the premium Nippers.”

While the concept is certainly impressive, the fact that Tait and Stokes just graduated school together and entered a national design competition to develop The Nipper makes the story all the more impressive.

“One moment we were doing our finals and the next we were in the centre of London, working on a product we’d come up with in our flat which we’d been given support to make into a reality,” said Stokes.

“A lot of people who have just graduated are spending the summer travelling or trying to find a job and move out of home. But being able to go straight from university to working in Somerset House every day, where you’ve got Parliament on one side and St Paul’s on the other, is pretty amazing.”

Considering that the device comes in a number of colors and will likely expand to include multiple strap options, the charger is likely to fit with anybody’s style similar to modern smartphone case designs.

For those interested, a ‘Classic Nipper’ can be purchased starting at just $23 over on Kickstarter.

3ders.org

by Simon | Aug 19, 2015

http://www.3ders.org/articles/20150819-3d-printing-helps-uk-designers-develop-the-nipper-the-worlds-smallest-phone-charger.html

3D printed kidneys

Thanks to innovative ink from Harvard’s Lewis Lab.

A 3D-printed battery the size of a grain of sand made its debut earlier this year, with the help of Harvard Professor Jennifer Lewis, a core faculty member at the Wyss Institute. To achieve the feat, Lewis and her team had to create specialized, “disappearing” inks — inks so unique they’re making more than microbatteries; they’re close to creating fully-functioning printed kidneys.

Jennifer Lewis spoke at the MIT Technology Review’s EmTech conference Tuesday about microscale 3D printing. Harvard’s Lewis Lab is focused on the directed and self-assembly of soft functional materials, and has made progress in creating human tissues that include rudimentary blood vessels, all with a 3D printer.

The 3D printer builds the tissue in layers, as well as various types of cells and materials. Lewis’s team has constructed “hollow, tube-like structures within a mesh of printed cells using an ‘ink’ that liquefies as it cools,” according to the MIT Technology Review. Once liquefied, the ink can be removed with a light vacuum, leaving behind an empty channel to then be infused with the cells that normally line the body’s blood vessels.

At EmTech, Lewis said “her group is using the same approach to making the tubes inside kidneys that help filter blood.” The team is starting with kidneys, “because they account for 80 percent of the need for organ transplants.”

A lot of work still needs to be done until patients start receiving 3D-printed organs. On stage Tuesday, Lewis said there are still challenges in sustaining cells and keeping them viable as researchers are printing.

“We’ll probably never be able to print the capillaries, which are on the order of 10 microns,” Lewis added. “Our thinking about this is to use top-down printing to create some overarching structure, and then let biology do the rest.”

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by  | 09/25/14 2:11pm