Windmill / Ventilator

This windmill/ventilator is about 21cm high (rotor excluded).
I planned it as solar powered windmill, but it’s winter and the sun is hardly shining, so...

It is seperated into three parts:
* stand
* head
* rotor

Three batteries and two contacts are placed in the stand, switch and electromotor are mounted in the head. The rotor is plugged onto the motor’s shaft.