Trash Heap Projector

March 29, 2010 by Caleb Kraft 21 Comments

[youtube=http://www.youtube.com/watch?v=S5jymxi62RI]

Being hackers, sometimes we just want to hack something together, not engineer it. This projector is a great example. Made mostly out of cardboard and duct tape (or duck tape if you prefer). He picked up a 12v LED array, a cheap fresnel lens, an LCD from a “back up monitor” and a focusing lens taken from a magnifying glass. Sure, we’ve seen better, much better. But seeing an evenings worth of feverish wire twisting and taping is always pleasant. It may look pretty dim in the video, it may be as well, but keep in mind that it is common for them to appear much brighter in person or if shot with a night setting on a digital camera.

Flash Animations On Peggy2.0

March 29, 2010 by Caleb Kraft 8 Comments

[vimeo=http://vimeo.com/10453715]

The LED display toy known as the Peggy2.0 just keeps getting cooler and cooler. [Leonard] is now sharing with us how we can stream flash animations to one. It requires some Java and an Arduino, but the final effect is quite fluid and responsive. We’ve seen the Peggy grow from basically an electronic litebright to doing video and even being chained together to make larger displays.

[via EMSL]

Lawnbot 400: An Update To An Update

March 26, 2010 by Caleb Kraft 13 Comments

Driven by the relentless nagging encouragement of the Hackaday commenters, [Johndavid400] has improved the Lawnbot 400. No longer does it just sport a makeshift wooden shelf. he now has a wheel barrow attachment. It looks quite sturdy as long as that front hinge holds out. There is an actuator coming in the near future for dumping the contents as well. Also, we suspect that might be a shovel in this picture.

Robots From Dolls

March 26, 2010 by Caleb Kraft 20 Comments

Here at Hackaday, we may be somewhat divided in our opinions of Anime and Manga. We were all pretty impressed by this robot build(translated) though. We’re not totally clear on who actually did this build, but we can see a few pictures and a video on the site. The original doll looks to be roughly 3 or 4 inches tall, judging by the Eeepc keyboard that it is standing on. We counted 7 servos stuffed into this thing with a controller board hiding in the back of its hair. You’ll have to watch the video to see most of the details. It looks like there is one in the head, one in each shoulder, both hip joints, and both feet. Though the motion at the end of the video is limited, we still think it is impressive. Creepy, but impressive.

note: the video is not embedded in the translated version. Just go to the non translated to watch it.

[thanks Francesco]

Polaroid Instant Film, Reborn.

March 25, 2010 by Caleb Kraft 37 Comments

The impossible has happened. While that may sound a bit over dramatic, the project itself was titled “the impossible project”. What is it that is so impossible? The revival of Polaroid instant film. This is not a newer, digital alternative, this is film you can actually buy and plop into your old Polaroid camera. What’s the big deal? All they had to do was start producing it again right? Not really. They’ve completely re-engineered it from scratch. That’s pretty impressive. We had heard, early last year, that they were going to attempt it, and we’re pleased to see that they’ve succeeded.

That being said, a handheld, home hacked digital instant picture device sounds kind of cool. It would probably be an easy one to build too.

Massive No-touch Physically-interfaced Display

March 23, 2010 by Caleb Kraft 23 Comments

[youtube=http://www.youtube.com/watch?v=8bHWuvzBtJo]

[Daniel] wrote in to show us the project his group has been working on. It is a massive display wall consisting of 28 projectors and 30 computers. With a resolution of 7168×3072, viewing a 13.3 gigapixel image is a treat. That treat is made even stronger by the fact that navigating the image is done multitouch style with a touchless system built from web cams. We’ve seen lots of projects come out of the NUI group with similar interfaces, but none that used the webcams like this. Usually, the webcam is detecting some kind of interaction between the person and an infra red light source. Maybe that is happening here and we just don’t see it.

Ask Hackaday: Now A Regular Occurrence

March 21, 2010 by Caleb Kraft 32 Comments

A while back, we announced that we would be bringing new features to Hackaday. One in particular that garnished a lot of interest was our question answer type thingy. Well, in case you hadn’t noticed, that has not happened yet. Without divulging too much into the secret machinery that lies underneath Hackaday, I’ll just say that we(the writers) don’t necessarily have control over all aspects of the site. An example would be the copyright. Yes, we finally got it updated. Thanks for all of your emails. No, none of us had access to that part of the site, so don’t bother letting us know how simple that change should have been.

We are as eager as you to see some good ideas and good feedback flowing through this site, so we’re going to start a regular post, entitled “Ask Hackaday”. This isn’t entirely new, we’ve done it before actually. This is just to let you know that we intend to do it regularly, and to set some ground rules. “Ask Hackaday” will mostly center around you, our readers, and your ideas. We will publish a question, and possibly our thoughts, but the main content will be your responses. We have a huge collective of intelligent creative readers and it would be a shame not to tap into that pool of knowledge. When you are offering an answer, be thorough, give details, and please be kind.

Send your questions to askHAD@hackaday.com for consideration. They will be chosen based on a complicated system of random number variation involving furry woodland creatures and how we feel at the moment that we read them. Do not get offended if you question does not get published. We get tons of questions already and we don’t intend to publish them all.