Simple 50mm part cooling fan for wanhao i3/ alike

A 50mm axial blower/fan is probably the best alternative you can get for your 3D Printer and i can only recommend the upgrade if you are still running on the standard issue 30mm fan (or even on a 40mm fan).

There are some fancy all surround part cooler designs for the i3 out there, but i ran into lots of trouble with at least two of them. The cooler ring would eventually sag down a little, and the tight tolerances would case it to push over your print. Also i had my well isolated extruder blo