Prusanozzle fan for cooling the filament

This is my own version for the prusanozzle cooling fan for the filament. This may be used below the standard groovemount for prusa i3.
I tried different designs but was dificult fo print my old designs and this is a try and error and hours of investigation...

I put an example of my printing with this fan for see the final quality
For 30mm fans

Enjoy it