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Bladeless fan



http://www.d-talks.com/wp-content/uploads/2011/06/Dyson-Air-Multiplier-blue-print.jpg

You can buy a fancy one in the shop but it is fun and educational to build your own bladeless fan
The main reason i post it here is that this enables you to blow more directed air over a printed object for cooling

http://en.wikipedia.org/wiki/List_of_Dyson_products
http://en.wikipedia.org/wiki/Switched_reluctance_motor
http://en.wikipedia.org/wiki/Bladeless_fan
http://en.wikipedia.org/wiki/Bernoulli%27s_principle
http://www.thingiverse.com/thing:6848/#files
http://www.thingiverse.com/thing:6848
http://www.thingiverse.com/thing:6859
http://www.thingiverse.com/thing:169310



http://i.dailymail.co.uk/i/pix/2010/05/26/article-0-09C51CE4000005DC-435_468x430.jpg
Dyson Launches Air Multiplier Fan in technology main home furnishings Category