Lulzbot TAZ3 Extruder Cooling Fan

Here is a small efficient TAZ3 filament cooling fan. The orientation is quite difficult to print, requires a lot of support, however I managed to print it in the orientation that the STL is exported in.
The final design incorporated features for easy mounting, using the same bolts all round. Compact space usage, lightweight.
You'll need a
1 x 50mm x 50mm fan (40mm mounting hole spacing).
6 x 3M 20mm bolts, washers and nuts
2 core cable for the fan along with connectors (or solder it)