About this 3D model
Here is the realization of a mini fan support which can couple with the mini fan at this address: https://cults3d.com/fr/divers/min-fan You can find more information at this address: /www.techno-midiazot.re/espace-professeur/les-supports/mini-ventilo/ You can also find other objects to download. On this support there is an opening to put a small DC motor and a conventional switch.