70mm electric ducted fan housing
thingiverse
The required components for a low-cost EDF unit include a printed part, a 70mm fan (e.g., http://www.hobbyking.com/hobbyking/store/__29287__DPS_Series_70mm_EDF_10_Blade_Replacement_Impeller.html), a motor (e.g., http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=18541), and a shaft adapter (e.g., http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=28380). A video demonstration of this EDF unit can be found at http://youtu.be/sk74hzTnlg4. To ensure proper mounting, support material is recommended for the motor mount, and you'll need to drill your own motor mounting holes. This EDF unit is incorporated into my electric football design available on Thingiverse (http://www.thingiverse.com/thing:191442).
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