Windmill / Ventilator

thingiverse

This DIY windmill/ventilator stands at approximately 21cm tall (excluding the rotor). Initially designed to harness solar power, I've since adapted it for winter use given the scarcity of sunlight. The device can be broken down into three distinct components: * Stand * Head * Rotor Three batteries and two contacts are strategically placed within the stand, while a switch and electromotor are mounted in the head. The rotor is securely connected to the motor's shaft.