Printrbot Simple 40mm Fan Mount with 360 Degrees Duct

This is a 40mm fan holder with a duct that wraps around the extruder to blow down on the extruded filament and the extruded part from 3 slots located 120 degrees apart around the extruder nozzle.

So far I've printed up to 1.5 hours without any noticeable heat problem.

My print had a few breaches in the hull which were sealed with super glue.