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Gadget Freak
Content posted in October 2011
Gadget Freak Jr.: Homebrew Jet Engines
Gadget Freak 
10/27/2011  17 comments
In an aerospace and mechanical technology trilogy, we bring you videos of homebrew jet engine projects including one made via 3D printing.
Gadget Freak Case #197: Controlling Solar Water Flow
Gadget Freak 
10/25/2011  19 comments
To make his solar water heater more efficient, Paul Westaway put together a differential controller that turns on the pump when the temperature of the solar panel or woodstove coils is higher than the temperature in the storage tanks and turns off when the temperature is lower.
Gadget Freak Case #196: Mayan Water Sound Fountain
Gadget Freak 
10/13/2011  8 comments
This waterfall flows over a miniature Mayan temple and the lights respond to the intensity of the speakers.




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Producing high-quality end-production metal parts with additive manufacturing for applications like aerospace and medical requires very tightly controlled processes and materials. New standards and guidelines for machines and processes, materials, and printed parts are underway from bodies such as ASTM International.
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