Air Deflector for Geeetech MK8 Extruder

When you're sitting in front of the printer and watching it print, the air flow from the extruder fan will blow you directly into your eyes. I nearly got an ophthalmia from that...
So I designed this air deflector to guide the airflow from the extruder straight up and not anymore straight into your eyes.
The surface of the inlet is the same as from the outlet, so there should be no big influence on the flow.