传动比 3D Printable Models

传动比 3D Printable Models Search Made Easy, We Search 2 传动比 3D Printer Models From Web For You To Print.

Gear Ratio Demonstration Toy

Gear Ratio Demonstration Toy

A wind turbine with a mechanical counter (dog?)(It's useless, I just want to record how many times the wind turbine has rotated)

A wind turbine with a mechanical counter (dog?)(It's useless, I just want to record how many times the wind turbine has rotated)