Lawnbot400 saves wheelbarrow trips

We may be good at soldering but when it comes to hauling topsoil our scrawny arms quiver. [Johndavid400] did the smart thing here by letting the machine do all the work. Instead of hauling an entire truckload of dirt across the yard one wheelbarrow at a time, he built a shelf on the top of his Lawnbot400. We saw this lawnmower Arduino-powered, remote control mower back in November. The addition of its ability to handle some of the manual labor makes it the perfect backyard hack.

[Via Embedds]

Heated MakerBot build stage

This heated build stage seeks to make 3D printing with the MakerBot a little easier. When hot ABS or PLA meet the cold, cruel world they have a tendency to warp. This was concern for [Devlin Thyne] when he was developing our Hackaday badges. What you see above is 10 Ohm nichrome embedded in clear silicone, then sandwiched in between two plates of glass. The device is made to interface with the MakerBot and includes a thermister for temperature sensing. With a small firmware upgrade you can now set the build stage temperature which should make larger printed objects a bit easier to deal with. A while back we saw a hotbed for the RepRap, but this implementation should be cheaper and easier for the smaller MakerBot applications.

Polaroid instant film, reborn.

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.

Fan-powered skateboard

[Chris Neal] is starting his hacking career young. He built this fan-powered skateboard for his fourth grade ‘Invention Convention’. The ideas were his own but he had some help with the construction from his uncle who owns a repair garage. On the back of the board there’s a motorcycle battery that powers the fan. We’re not sure where that fan came from, but apparently it can push a rider at about 3-5 MPH. [Chris] scored a free MacBook pro from this hack after being featured on the Ellen DeGeneres Show.

For some reason this sparks the memory of the drill powered minibike.

[via Gizmo Watch]

$500 Craigslist car competes against $400,000 race car…

…and wins. Well, 3rd in class, but still surprisingly well for such a cheap entry. This is truly a show that with enough elbow grease and headlight fluid anything can be accomplished money just makes it a ton easier.

Everything from the roll cage to the 5 minute gas tank fix was fabricated by [Bill Caswell]. Well — fabricated is a rough term for duct tape at that point, but this is still an awe-inspiring and truly motivational story for any hacker and car enthusiast alike.

[Thanks TJ Walker]

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