[Imc-makerspace] DirectU2 Specs & Techs: A Solar Powered 3D Printer that Sinters Sand...

Tue Aug 9 09:14:44 CDT 2011

Sunpowered 3D Printer
Sunpowered 3D Printer 
<http://click.email.globalspec.com/?qs=2594ab7d1921690ff5e0dbce7d929fcfe06c12a3ad3ba49374f5b76eb724c5e198546a02d571f5eb> 

A big Fresnel lens, solar cells, and even 3D printing are not 
revolutionary --- until you put them all together. Markus Kayser built a 
3D printer that uses sunlight 
<http://click.email.globalspec.com/?qs=2594ab7d1921690f7975f684757c23ddbd325fd0595636df6adedd93a6e1048ef55d907d56f3e883> 
to sinter sand, and sunlight-generated electricity to drive the 3D 
printer. He tested the assembly in the Sahara, in Siwa Egypt.

Learn more about rapid prototyping equipment 
<http://click.email.globalspec.com/?qs=2594ab7d1921690f374208226664ff55d175dae04d3334dc23a3bc11819b8a6caf186b1637fdba4f>...

Ceramic Bulb Aids Farmers in India
Ceramic Bulb Aids Farmers in India 
<http://click.email.globalspec.com/?qs=2594ab7d1921690f662bba3f1e83226336ac744da97f13dd1fa51c0421da0428a0d3e3282d4f66cf> 

A simple tensiometer consisting of a porous, ceramic bulb attached to a 
color-coded meter that indicates the moisture content of soil is helping 
drought-stricken farmers in Punjab, India conserve water, saving their 
crops and their livelihoods. An associate research scientist at Columbia 
University's Water Center is working with counterparts in India to 
develop this and other water conservation tools 
<http://click.email.globalspec.com/?qs=2594ab7d1921690f7107190c57c749a0c33d01eaca2308f766ac5db249cdeb11aa6b1d56b4f2cf73>. 
A preliminary test in which 500 farmers were given the tensiometers 
showed that those who followed the instructions cut their water usage by 
30%.

More from /Glass, Ceramics, Fibers & Fabrics/ 
<http://click.email.globalspec.com/?qs=2594ab7d1921690f1c31a58f1c4f7de4e2c4a356855d322df7de0c940361c2a1251548b70a74fd31>...

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