About this 3D model

Model Description: The handle drives the gears, which mesh together, ultimately driving the fan blades, accelerating the gear transmission working principle. Assembly Diagram: The pin and the assembly hole are an interference fit, which can be installed by tapping with a hammer. Handle Printing Instructions: The handle is designed as a single piece, which can be printed directly without worrying about the model sticking together. No supports are needed for the handle area above