This news might be disturbing to many of you especially if you are against the use of guns. Cody Wilson, founder of Austin-based organization Defense Distributed, wanted to make as many gun parts as possible into 3D printable files that can be downloaded from their website Defcad.org. Now he has announced plans to launch a new search engine with which people can find 3D printed gun components and other patented stuff.

The upcoming search engine, Defcad.com, will be an improved version of the organization’s current website. Wilson plans to make money from his search startup by hosting paid advertising.

In the video posted below, a very serious Wilson talks about his organization’s history and ideas. He is also talking about 3D printer company Makerbot, which removed 3D printed gun files last year, and its CEO Bre Prettis. Makerbot’s decision of course is sensible as this is a route most companies are not willing to take.

Defense Distributed is going on strong currently, according to Wilson. He says that an ad on Defcad.org has generated about $4,000 a month and the company also receives as much as $2,000 a month in donations. But certainly everything won’t be easy for them, as objections are rising from all around. According to Wired, Wilson is one of the “15 most dangerous people in the world”. Maybe Wilson finds that as good publicity.

Check out the video and leave your thoughts about Wilson and his ideas below.

What do you think: Are easily printed 3D gun components a potential problem, or not?

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3D printing is becoming more and more popular these days and the researchers at the Vienna University of Technology have come out with an interesting development. Their new high-precision 3D printer can create nanometer-sized objects and that too in record breaking speeds. As you can see above, they have 3D printed a nanoscale racing car perfectly.

With their nano 3D printer, which is capable of creating objects no bigger than a sand grain, they have precisely created complex structures including a racing car, a model of St. Stephen’s Cathedral in Vienna, and the London Tower Bridge. That’s impressive considering the size of these objects.

The technique that they are using for making objects at this scale is known as two-photon lithography. Using a series of mirrors, the team directs a laser through a liquid resin. The laser beam hardens the liquid resin at precisely the correct spots. What you get will be a “polymerized line of solid polymer”.

The 3D printer is capable of printing 100 layers (200 lines per layer) in just 4 minutes. That’s about five meters of polymer printed in a second, which is reportedly a world record. Their biggest hurdle in the printing process was controlling the movement of the mirrors for making sure that the laser was directed precisely.

And what’s the future of all this, you ask? The researchers have started to experiment with bio-compatible resins. That means in the future, they might be able to create biological parts, which can be used in human bodies, via a 3D printer. And the technique can be used to create large 3D objects with precision and without spending too much time.

Check out the video to see the nano printing process.

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