Simple 3D Printer Fan "hack", haggard but Easy layer cooling…
well, its haggard, but it works!
Fans are these types: http://www.amazon.com/Delta-AFB0712HB-3-Pin-70MM-Fan/dp/B00H0AW69G
you can find them cheaper on eBay…
they are ball Bering fans!
let me see your fan mods in the comments below!
~Russ Gries
http://rwgresearch.com/open-projects/3847-2/