Geeetech i3 pro b turbine fan extruder holder

I hacked this together in order to be able to place a turbine pointing in the right direction on my extruder holder.
It looks ugly but slices correctly in cura, you use a metal wire to hold it against the extuder printed base through its holes.
It should be printed the way it is oriented, so you need no supports.

In the picture you see this item holding itself on the extruder holder without any additional help (after I touched it a little with a dremel).
The way I fixed the turbine makes i