Rotating Impeller Keychain

thingiverse

This sleek keychain is crafted by a precision-crafted impeller and sturdy supporting platform. The rotation of the impeller glides smoothly and consistently, unaffected by the printer's accuracy, thanks to carefully selected tolerances that ensure reliable performance. If you're an engineer or mechanics enthusiast who loves tinkering with intricate mechanisms or fluid dynamics, this keychain is designed specifically for your hands.