Design Concept
This hand-cranked drill model is specifically designed for educational purposes, ideal for teaching children basic mechanical principles and enhancing their hand–eye coordination.

Applications
It serves as a fun, interactive tool that helps children grasp how gears and mechanical systems work, sparking scientific curiosity and a spirit of exploration.

Printing Tips
Use filaments of different colors to distinguish the gears from the handle, which can strengthen the cognitive association between function and color. A lower layer height ensures smooth gear engagement.

Assembly Instructions
The assembly process for this hand-cranked drill is straightforward. Align each gear with its corresponding shaft, ensuring proper meshing, then test the handle mechanism. If any parts feel loose, you can apply a small amount of glue to secure them.