Alternative fan mount for Lulzbot TAZ 3D printers (before version 5)
My 3D printer was exhibiting a problem where very long prints would fail after about 20 hours. I discovered it was due to heat creeping up the extruder and this fan mount fixes the problem.
For more info see: http://www.openbionics.com/top-taz-tips-for-3d-printing/
This is derived from work by Aleph Objects (TAZ Extrusion Fan). The design is released as CC-SA.