The old saying, “garbage in, garbage out” may need to be re-evaluated. Students at Victoria University of Wellington are developing a machine that recycles old milk jugs, extruding an HDPE plastic filament that can then be fed into a MakerBot for 3D printing.
The process involves grinding the plastic into small pieces, then pressing these through a heater and extruder plate to produce a continuous bead of the proper diameter for the MakerBot. Nichrome wire — the stuff of hair dryers and toasters — forms the heating element, and this must be regulated within a specific temperature range for different plastics. The initial grinder design is hand-cranked, but they are working toward a fully automated system. It appears that the machine could also recycle old MakerBot output, provided the grinder has sufficient torque.
So one man’s trash
another man’s treasure
. We envision a future of crazy-haired makers rooting through their neighbors’ garbage, feeding their Recyclebots’ hoppers “Mr. Fusion” style.
Operating under the premise that glass bottles were not being recycled as much as plastic or aluminum because there’s no payment for the effort, the team at The Fun Theory set out to add a non-monetary incentive. Here is the fruit of their efforts, the Bottle Bank Arcade. Now recycling glass bottles comes with a bit of a game.
A light flashes above one of the holes in the recycling bin and then rewards points if a bottle is inserted there quickly enough. This Simon says type concept proved incredibly popular in the video embedded after the break. We would image some of the kids in the video made their parents haul them home and back with some empties so they could play.
In one evening, this modified bottle bank was used over 100 times, while a nearby low-tech repository was used just twice. This is a great way to use some tech knowledge, a love of hacking, and desire to spread joy in order to make the neighborhood more fun and help increase the amount of trash that ends up being recycled. This is the same team that put together the musical subway steps, we hope they keep this trend going!
Continue reading “The glass recycling game”
[Mangonha] has put together this interesting project involving aluminium can recycling (translated, sortof). They’re using an arduino to tally up how much aluminium they have accumulated. That information is then passed on and displayed on a google map. There are families that go around collecting the cans as a means of income, and this system could be very helpful to them. They state that their goal is to eventually have restaraunts and more families included. We’re a bit curious about how helpful this really is. How is that information actually changing the actions of the collectors? Would a simple flag on your door or window signalling enough cans to pick up or not be just as effective?
[via the Make flickr pool]
Recycling is great. We’ve seen a pretty hard push in that direction recently. We like the fact that our modifying of hardware is generally saving it from the dump. Keep in mind, that just using old hardware can be advantageous too. We don’t always need the new shiny thing, maybe we’re fine with what we’ve got. That is exactly what lastyearsmodel.org is about. You can join their facebook group and even get stickers for your old devices.
WEEE Man is an art display that has been roving around England. No, he doesn’t walk or talk. He is here to remind us of how wasteful we can be. Hackers rejoice, we’re part of the solution. It also doesn’t hurt that he is Seven Meters tall and over three tons. WEEE Man looks awesome, but are we the only ones that spotted stuff and thought “ooh, I could have used that for a cool project.”?
[via The Presurfer]
If you’ve never heard about electronic paper, crawl out from under that rock and read up on the Sony Reader and the Amazon Kindle. E-paper is a flexible display made of color-changing beads that mimic ink-on-paper for easy daylight reading. The revolutionary thing about e-paper is that after it’s set, it stays that way without additional power.
This sounds great in theory, but Esquire’s cover is the first time everybody can afford to hack an e-paper display. We took the cover into the Hack a Day lab to document, test, and hack. In the end, we recycled it into something useful that anyone can build. We’ve got all the details on how the display works and what it takes to use it in your own projects. Read about our e-paper clock hack below. Continue reading “How-to: Make an e-paper clock from Esquire magazine”
While not very technical, [3eff_Jeff] posted an interesting modification to an empty air canister that makes it refillable. He was tired of drilling holes in the ozone, so he carefully drilled a hole into the top of the can instead. In the name of caution, he made sure the can was completely empty first by tying the trigger down with a rubber band. After waiting a while he carefully drilled the hole using an oil lubricant, and then epoxied in a Schrader valve from a leftover bike tire tube.
Due to compression of the air as it is pumped into the can, it becomes quite warm. He found that if the can is allowed to cool to room temperature, the air would become very cold once leaving the canister, which would cause condensation problems. So he uses it right after filling, and then empties it out when not in use.
We do not recommend anyone trying this, but it is a unique way to make a commonly used disposable resource in the computer field reusable. If we can use something more than once, we’re definitely for it. That’s why we support recycling components that would otherwise make their way to the landfill.