This a cooling fan suitable for any 3D printer, fully orientable. I designed it as I did not want to have another fan mounted on my printer (to avoid vibrations). You can have as much fans as you need.
You can use this mount to cool your prints, your board, or if you're a geek you can put it on your desk ;)
This is for 80mm fans, 92mm fans and 120mm fans.
I had a problem during the print so the photo is not really representative (my printer skipped a step).
12% is enough for the infill, you can use more if you want but the fan will be less stable.
You'll also need :
-M8 rod (not too high, I'd say no more than 25mm, otherwise you should make longer feet for the support). You can add 2 bolts if you want to be sure that the fan support will not fall.
-2 M4 screws for the fan, with 2 bolts
-1 m4 screw for the orientation of the fan
There is also a part that you can mount on you fan to improve the airflow.
If you choose a long M8 rod, print a support for a 120mm fan, or add the part improving the airflow, you should print the base with longer feet !