3D-printed bicycle rivals modern aluminum frames

We’ve seen all sorts of objects printed from 3D printers, but the European Aerospace and Defence group (EADS) has shown off the first bike made from nylon—which they’re saying could replace traditional steel and aluminum bikes due to the affordable method it’s created.

The new manufacturing process is known as Additive Layer Manufacturing (ALM) and it allows single products to be grown from a fine powder of metal (such as titanium, stainless steel or aluminum), nylon or carbon reinforced plastics. Drip by drop, each part of the bike is made from powder with the machine connected to a computer loaded with the CAD bike design.

Aluminum bikes are already pretty light, but EADS is saying their nylon Airbike is 65 percent lighter. It’s also more eco-friendly to produce, and due to the nature of 3D printing, individual parts can be printed easily if damaged.

Andy Hawkins, lead engineer for ALM at EADS, described it as ‘a game changing technology’. "The beauty is that complex designs do not cost any extra to produce," he said. "The laser can draw any shape you like and many unique design features have been incorporated into the Airbike such as the auxetic structure to provide saddle cushioning or the integrated bearings encased within the hubs."

By removing production lines and the need for factories, Hawkins believes the costs of ‘manufacturing’ will be significantly reduced and, through this, ALM has the potential to reverse trends of urbanization that have historically accompanied industrialization.

3-D Printing Spurs a Manufacturing Revolution

SAN FRANCISCO — Businesses in the South Park district of San Francisco generally sell either Web technology or sandwiches and burritos. Bespoke Innovations plans to sell designer body parts.

The company is using advances in a technology known as 3-D printing to create prosthetic limb casings wrapped in embroidered leather, shimmering metal or whatever else someone might want.

Scott Summit, a co-founder of Bespoke, and his partner, an orthopedic surgeon, are set to open a studio this fall where they will sell the limb coverings and experiment with printing entire customized limbs that could cost a tenth of comparable artificial limbs made using traditional methods. And they will be dishwasher-safe, too.

“I wanted to create a leg that had a level of humanity,” Mr. Summit said. “It’s unfortunate that people have had a product that’s such a major part of their lives that was so underdesigned.”

A 3-D printer, which has nothing to do with paper printers, creates an object by stacking one layer of material — typically plastic or metal — on top of another, much the same way a pastry chef makes baklava with sheets of phyllo dough.

The technology has been radically transformed from its origins as a tool used by manufacturers and designers to build prototypes.

When one screen is just not enough

Convergence is where it’s at.

A recent article over at Mashable looked at some Nielsen statistics regarding the concurrent use of television and a computer. The general trend indicates that households are growing more comfortable with the idea of using a computer (most likely a notebook) while watching their favorite programs. The surge of real-time social media (like Twitter and Facebook) is probably a big factor.

There have been some neat experiments with convergent programming such as sporting events delivering stats and alternate views during games, adding additional content to repeated shows and of course the ever-present user interaction on Twitter and show bulletin boards.

As multi-platform viewership continues to grow, how will networks and companies take advantage of it?

Some interesting stats from Nielsen:

Wii Headtracking Creates 3D Window Display

Johnny Chung Lee is the PhD student from Carnegie Mellon University who has been rocking Nintendo fanboy hearts pretty hard by making the Wiimote do some spectacular feats. We first saw him track his fingertips on the screen for a "Minority Report" type of interface. Then he created an interactive whiteboard. Now, he’s managed to create a headtracking simulation through the Wiimote, creating an amazing 3D window on the world.

The mod requires you to wear the sensor bar (or any IR-emitting headband, Lee makes some sweet goggles) and place the Wiimote by the screen (it’s hooked up to a laptop with a TV-out for this demonstration). Essentially, your head becomes the mouse peeking through a 3D room, and the gameplay implications would be incredible.

Anyone else thinking that Nintendo should pay this guy whatever he wants to make some awesome games? Or, you know, Sony and Microsoft could always grab him up, too. These ideas just use the Wiimote’s IR—technology that isn’t exactly cutting edge stuff.

Robot Film Crew Knows What Sports Fans Like

SPORTS fans need never miss a match again, thanks to software that could automatically film games and so allow broadcasters to cover them more cheaply by losing camera crew.

Dubbed the Autonomous Production of Images based on Distributed and Intelligent Sensing (APIDIS), the system combines the video stream from several cameras, says Christophe De Vleeschouwer at the Catholic University of Louvain (UCL), in Belgium.

Tracking a ball across various video streams is relatively easy, says De Vleeschouwer, but viewers also want to see what the players are up to. So APIDIS aims for a shot of the action that is a compromise between focusing on the ball and wider views of the pitch by tracking the ball and players simultaneously, calculating which camera captures the most detail (Computer Vision and Image Understanding, DOI: 10.1016/j.cviu.2010.01.005).

APIDIS can be tailored to viewers’ demands, says De Vleeschouwer, by giving preference to shots containing particular players, for example. It has been tested on several basketball matches, a game chosen because of its fast pace. The resulting footage was good enough to attract interest from the US sport broadcaster ESPN, claims De Vleeschouwer.

APIDIS could also be useful for surveillance, when it could track groups of people on CCTV networks, says De Vleeschouwer.