DIY

A Texas man has become the first person to successfully fire a real bullet from a gun created on a home 3D printer. Sound crazy? In fact, the blueprint for the pistol is available for free online for anyone to access. And it's legal.

University of Texas law student Cody Wilson, 25, released a video of a 3D-printed gun named the "Liberator" taking test shots over the weekend. The gun is mostly made of plastic, with the exception of two metal pieces: a metal firing pin and a 6-ounce piece of steel that's required by law under the Undetectable Firearms Act. Of course, the piece of steel that makes the weapon visible to metal detectors, and legal, can certainly be omitted by future hobbyists.

Wilson invited Forbes reporter Andy Greenberg to witness the trial. Greenberg reports that 15 of the gun's 16 pieces were printed by a Stratasys Dimension SST 3D printer -- the metal firing pin is the 16th piece. … Read more

People like to claim that education is in crisis.

But it's surely no more in crisis than humanity itself, as it veers toward an unknown future while leering into screens for its solution.

However, Bartow High School in Florida garlanded itself in a particularly educative spirit this week by expelling a 16-year-old girl for putting a couple of chemicals into an 8-ounce water bottle and watching it go bang.

Should this tale not have exploded before your eyes this week, Kiera Wilmot wasn't merely expelled for this misdeed on school premises, she was also charged with felony possession … Read more

Thor's hammer + Tesla coil = zzzzap. Before we get into this, let's talk about safety. You probably shouldn't try this at home. Or at work. Or pretty much anywhere else. We're talking 80,000 volts of electricity. Unless you really know what you're doing, don't try to mess with the elemental forces of nature that were harnessed for this project.

Caleb Kraft from Hackaday and Tesla coil expert Staci Elaan teamed up to bring a comic book legend to life. To make Thor's hammer, Mjolnir, truly summon lightning, they had to provide the lightning in the form of a solid-state Tesla coil embedded into a foam prop. At the push of a button, 80,000 volts of electricity arc from the hammer's top.… Read more

You're not the only one who missed out on dropping $1,500 for Google Glass Explorer Edition. An Australian geek, who goes by the "Evil Dead" name Ash_Williams on Australian PC hardware community forum Overclockers, doesn't have one either. So he made his own.

The hacker's version is called Flass, a combination of "fake" and "glass." It's powered by a Nokia N9 phone. The TV-out feature of the phone feeds the eye display, which is mounted on a set of real glasses using cable ties.

Ash_Williams has gone through four different versions of Flass so far.… Read more

When trying to survive a harrowing near-death situation in a video game, it's likely that looking away from the action -- even just for a moment to check your health -- could mean certain doom. To avoid this gaming conundrum, Reddit user Bfayer created his own real-life video game status bar in the form of a 3-foot transparent tube filled with water and color-changing lights that shift based on his character's health (or mana, etc).

Bfayer calls his device the "Liquid Lifebar," which currently only works with the side-scrolling exploration game Terraria. The demo video shows the creation of the Lifebar and how the water rises, falls, and changes color according to his character's status as he fights monsters. … Read more

On his Blackout Props Facebook page, Archie Whitehead introduces himself, saying, "Hi! I'm 17 and have just got into special effects, props, and costumes." By "just got into," he actually means, "I just build an awesome wearable Iron Man suit from scratch while you were busy surfing cat videos online."

The materials for the suit alone cost around $500. Some portions of the costume are made from foam rubber. Automotive spray paint gives it the glossy, just-built-by-a-billionaire look. Battle scars across the helmet hint at some epic conflict. It took several months to put the costume together.… Read more

The most common portable hard drives have USB 2.0 connections, which are great for compatibility, but terrible for performance. If you have an old USB 2.0 portable hard drive, you can increase its transfer rates by upgrading it to USB 3.0. For as little as $15, you can double your drive's real-world performance. Here's how:

Disclaimer: Opening your portable hard drive's enclosure will likely void your warranty. It's also possible that you'll damage the original enclosure and or the internal hard drive. We recommend you back up any data that may be … Read more

When is an AT-AT not an AT-AT? When it's Captain Bayley's Infernal Mechano-Perambulator. The captain (also known as Mark), created a steampunk AT-AT out of a vintage toy. It's the details that amaze.

You could get lost in the depths of this steamy tribute to the famous "Star Wars" machine. There's a smoke stack blowing out fluffy clouds of fake smoke. The finish is done in a weathered-copper look. By golly, is that a lightsaber-esque unicorn horn on top of the nose? Mossy plant life hanging from the mouth makes this AT-AT look a lot friendlier than the killing machines from the movies.… Read more

NEW YORK--Guitars. Skulls. Bracelets. Colorful heads. And so much more.

That was what was on display at the Inside 3D Printing event here today, a celebration of all things 3D printing, and one of the first-ever professional events dedicated solely to the decades-old technology that has been taking the world by storm over the last few years.

Just about ever leading company in the field was on hand, from 3D Systems to MakerBot to Stratasys, and many others. And hundreds of people packed the event hall, eager to see the latest machines, and hear from some of the leaders in … Read more