3D-Printable Bevel Gearbox for Model Plane

I'm seeking a 3D model of a small bevel gearbox, designed for a 22.5-degree angle and a 1:1 ratio. The gearbox will be used for a model airplane with dual counter-rotating propellers, and its primary purpose is to enhance flight performance. The model should be suitable for nylon 3D printing and should have basic functionality without excessive detail.

Key Requirements:
- Design a small bevel gearbox
- 22.5-degree angle and 1:1 ratio
- For a model airplane with dual counter-rotating propellers
- Suitable for nylon 3D printing
- Basic functionality without excessive detail

Ideal skills include:
- Mechanical engineering
- 3D modeling
- Experience with designing for 3D printing