Africa Teaches the West How to Build a Car

October 23, 2013 by kris de decker Filed Under: Africa, Cars, DIY, Low-tech cars, Random, Trash

Smati turtle 1 african car

Today’s cars look like spaceships and are built by robots in futuristic factories. At least, that’s the picture in the developed world.

In Ghana, West Africa, both the cars and the auto industry look rather different. In a neighbourhood called Suame Magazine, an estimated 200,000 artisans take apart discarded western cars and use the parts to build easily repairable vehicles that are suitable for African roads. All this happens manually and in open air.

Artist Melle Smets and researcher Joost van Onna, both from the Netherlands, set up shop in Suame Magazine and built a unique African concept car in collaboration with the local community: the SMATI Turtle 1. Their project calls into question western ways of dealing with technology, waste, employment and automation.

Picture: The SMATI Turtle 1

[Read more…]

A Mattress that Lasts a Lifetime

March 16, 2013 by kris de decker Filed Under: Craftsmanship, Low-tech solutions, Random, Trash, Wool

mattress that lasts a lifetime

“Our mattress is worn out. We need a new one, but I’ve been dreading buying a new one. I don’t like the waste of it all: The ignoble dragging of the old mattress to the curb. The prospect of sleeping on a brand new construct of toxic foam and fire retardants… In Greece, Italy and France mattresses are made by local craftsmen, and are stuffed with 100% wool. These mattresses basically last for life. When the wool gets compressed the mattress guys will empty it out, fluff it up, and re-stuff it, adding more wool if necessary.” [1]

“The bed Mary bought was made by Signor Oldani, a Milanese bed-maker and upholsterer. He made beds the Italian way, and the way we used to make mattresses in England before the introduction of short-lived internally sprung ones.

The beauty of the mattress is that when it needs a wash, the wool can be pulled out, stuffed, in batches, into pillow cases, put through the washing machine and after drying, carded back into fluffy pile before being returned to the mattress cover.

Every few years, it needs to be re-carded, as the wool slowly compacts, says Mary. In Italy during the summer, the mattress man, il cardatore, tours Italian homes, pulls out the wool from their mattresses, re-cards it, adds some more, as the process reduces the stuffing a bit, rebuttons and then sews the mattress cover back up again. Mary submitted her mattress to this process four times.” [2]

“Totally by chance, I found two places in Paris that still make their own 100% wool mattresses by hand… It was ready two days later. They told me to come back in 10 years to have the mattress redone: they pick it up in the morning, take out the wool stuffing, clean and refluff it, put a new cover on it, and then deliver it back to you before bedtime.” [3]

Read more: 1 / 2 / 3. Via Root Simple.

Pedal Powered Electronic Waste Recycling Machine

September 25, 2012 by kris de decker Filed Under: Human power, Pedal power, Pedal powered machines, Recycling, Trash

Bicyclean recycling electronic waste“The bicyclean is a safe, affordable, and efficient alternative for
harvesting electronic waste in developing regions. The bicyclean is a modified bicycle, where a processing chamber replaces the rear wheel and an external steel frame supports the rear hub. Processing of the circuit boards occurs within the sealed chamber and the particles are removed in a covered tray. A feed tube presses circuit board pieces into a large grinding wheel and become pulverized.”

“The particles pass a magnet that extracts ferrous metal particles. The particles then flow over a small eddy current rotor, which is positioned underneath the grinding wheel and powered by a 3:1 gear ratio with the bicycle chain. The changing magnetic fields of the eddy current rotor repulse conducting metal, but have no effect on non-metals; the metal particles are projected horizontally while the nonmetals fall vertically, separating particles in the bottom collection tray. The bicyclean requires a single operator.”

Read more: Bicyclean. Via Co.EXIST.

More Waste = More Money

February 20, 2012 by kris de decker Filed Under: Trash

A battle is brewing in Delhi, India over access and control to garbage. For decades, informal wastepickers and recyclers have turned garbage into cash. They cost the government and taxpayer nothing yet they significantly reduce the waste sent to already overflowing landfills, improve recycling rates and “cool the earth” by reducing carbon emissions. But recent government plans to privatize trash collection have put the livelihoods of the wastepickers under threat. Meanwhile, new plans to build incinerators funded by carbon credits mean the resources the recyclers depend on may soon go up in smoke. Watch the movie: Delhi Waste Wars.

The Greenest Building Is The One Already Standing

January 25, 2012 by kris de decker Filed Under: Architecture, Buildings, Trash

“Until now, little has been known about the climate change reductions that might be offered by reusing and retrofitting existing buildings rather than demolishing and replacing them with new construction. This groundbreaking study concludes that building reuse almost always offers environmental savings over demolition and new construction. Moreover, it can take between 10 and 80 years for a new, energy-efficient building to overcome, through more efficient operations, the negative climate change impacts that were created during the construction process.” Read more.

Harvesting Steel Wire

December 15, 2011 by kris de decker Filed Under: DIY, Reuse, Steel, Trash, Tyres

harvesting steel wire

“There is a huge need for construction materials, at the same time the planet everywhere is littered by millions of used car tires. A way has to be found for re-using the materials that car tires are made of: rubber and steel. Large scale processes for this are well known. At the smallest scale of use better methods of recuperation have to be developed.”

“Each car tire contains 70 meters of steel wire with a 1 mm cross section. When the properties of the composing parts of a used rubber tire are well understood, then the practice of recuperation can be adapted to it.” Illustrated manual at Demotech.