Hackaday Links: March 20th, 2013

Giant fresnel lens is dangerous fun

giant-fresnel-lens-is-dangerous-fun

Here’s an interesting, and rather dangerous, use for those old big screen TVs that are frequently listed for FREE on Craigslist. With the lens from the old TV built into an adjustable wooden frame, [Grant] was able to melt a stack of pennies, instantly burn wood, melt spots in concrete, and serve his family a cooked egg… Cool.

Projection mapping app helps create hologram like performance stage

projection-mapping-app-creates-live-desktop-stage

[Aimino] used an iPad, a mobile projector, and a mosquito screen to create a trippy hologram like stage. It might not seem like much at first, but it’s actually a pretty interesting effect. Watching the video makes me wonder what other applications this could have in the near future.

The world’s strongest magnet

worlds-strongest-magnet

At a cost of over $14 million dollars and weighing in at 35 tons, the 45 Tesla Hybrid is the strongest DC magnet on Earth. It’s powerful enough that the film crew couldn’t even safely get in to take footage of it.  Over half of their camera tapes were wiped clean just while being in the same facility that houses it!

Virtual Body chair uses 4 of our 5 senses

virtual-body-chair

Created in the hopes of providing a VR experience for seniors with mobility problems who can no longer travel the world, Tokyo Metropolitan University’s Ikei Laboratory presents the ‘Virtual Body’ exhibition. Included are a 3D monitor, a pair of headphones, a fan to create breezes and spread scents, a chair that moves and vibrates, and moving foot pedals.

Iron Man laser gauntlet pops balloons with ease

functional-iron-man-laser-gauntlet

If you’re an Iron Man fan with disposable income, you might want to check out this functional full metal laser gauntlet. Built from scratch using no blueprints or guides, [AnselmoFanZero] sells them for around $3K USD.

VFX1 Virtual Reality Headset LinkBox

 

[Kevin Mellott's] take on the VFX1 was to update it so it can be used with modern computers requiring just a USB socket and VGA feed.

The VFX1 is a Virtual Reality Headset that hit the market in the first half of the 90′s. The headset was the first of its kind to hit the home market and was ahead of its time. The VFX1 was developed and marketed by Forte Technologies, who’s assets where purchased in 1997 by Vuzix who now produce modern day Video glasses with optional tracking system.

What [Kevin] has achieved is nothing more than remarkable. The original system required a massive ISA card and a link from this card to the Feature Connector on the display card. [Kevin] did away with the ISA card and FCON replacing it with what he calls the LinkBox. This LinkBox has serial or USB out and accepts stereo/mono VGA input or RGB.

The system can now be used with modern day computers including laptops. Those into VR should really check this out.

[Read more...]

Where is my *%$#! virtual reality display?

For years I’ve been asking, loudly and frequently, where’s my F*&#$%ing virtual reality?  I realize that many of us, depending on what influenced our dreams of VR will have different definitions, so let me elaborate. When I was a kid, I played Dactyl Nightmare at the Union station in St. Louis. You stepped inside this “stage”, donned a massive clunky headache inducing HMD, and brandished a floating joystick of doom to challenge other players and a flying Pterodactyl.  I was awe struck. My 12 year old brain decided that this was the future.

[Read more...]

VR! now with more kinect, wiimote, and vuzix

Those of us that remember when you could actually go to a mall and play on a VR game machine, tend to remember it fondly. What happened? The computing horsepower has grown so much, our graphics now days are simply stunning, yet there’s been no major VR revival. Yeah, those helmets were huge and gave you a headache, but it was worth it.  With the 3d positioning abilities of the latest game crazes, the Wiimote and the Kinect, [Nao_u] is finally taking this where we all knew it should have gone(google translated). Well, maybe we would have had less creepy anime faces flying around squirting ink, but the basics are there. He has created a VR system utilizing the Wiimote for his hand position, a Vuzix display for head positioning, and the kinect for body tracking. Even with the creepy flying heads I want to play it, especially after seeing him physically ducking behind boxes in the video after the break. Long live VR!

[Read more...]

Well-balanced flight simulator

Here’s a flight simulator which uses concepts simple enough for anyone to build. As you pilot your virtual craft, the cockpit you’re sitting in moves as well. But unlike some of the more extreme simulator builds we’ve seen, this uses basic materials and simple concepts to provide that motion. Its center of gravity is balanced on a base frame. The joystick slides as you move the nose of the craft up and down, shifting the center of gravity causing the cockpit to tilt as well. The pilot sees the simulated flight through a wearable display. There is a stationary reference in front of him which allows the system to measure head movements, panning and tilting the virtual display to match. Check out the overview video after the break, or click through to the page linked above and watch all 22 episodes of the video build log.

[Read more...]

I’m one step closer to Azeroth

While looking for a way to injure his neck and live in the World of Warcraft all at once, [Gavan Woolery] came up with the idea for this virtual reality setup. That monitor, residing just inches from his eyes, is putting out 1080p at 120Hz. His plan is to pair up the motion sensing seen in the video after the break with an NVIDIA 3D Vision Kit for something close to total immersion.

To be fair, [Gavan] never mentions WoW, but we all know where this is going right?

[Read more...]

CES: Augmented Reality

I got my hands on a set of augmented reality glasses that were displayed with a Monkey-Ball style game. This wasnt anything too new as far as the augmented reality goes, however the glasses that were used with the game featured stereo cameras on the center of the outside of the lens, which allowed a true 3D augmented vision that you wouldn’t have to stare into a screen for. These glasses were still in the demo stage, but if they ever make it out into retail, I think that they would be exactly what could bridge AR from a fun toy to a useful tool. Another review video after the break.

[Read more...]