CTC Prusa I3 Pro B Active Cooler Improved Version (Custon Position)

Excellent active-cooling for ctc-prusa-i3-pro-b, it can be used with others. Lets you adjust height and distance using screws and washers. Improved version of http://www.thingiverse.com/thing:2013795.
Support is optional because it is difficult to remove the internal, but can help in the quality if a slicer is used that allows to customize the support.