Geeetech Prusa I3 Pro B Fan Duct

Desgined it because all other parts I found didn't fit good enough or are too low and crash into the paper clip that holds the print bed.

Update 2016-10-02:
I had an issue with my printer, caused by the cooling fan which blows the air direct on the temperature sensor of the heater. This results in a way too high temperature for example I set the temperature to 215°C and through the cooling fan the heater thought it is too cold and heats up to 265°C.
Make sure your temperature sensor is prot