Stability Model

3D Learning Model: Individual Tracks to Demonstrate Types of Equilibrium

This educational 3D-printed model consists of three separate tracks, each representing a different type of mechanical equilibrium: stable, neutral, and unstable. The tracks are independent of one another and can be placed in any order or used individually during demonstrations.

Designed specifically for classroom use, this model is ideal for teaching physics, engineering concepts, or flight theory (e.g., glider pilot training). It allows students to observe and understand how systems react to small disturbances in a direct and tangible way.

Each track works with a standard table tennis ball (40 mm diameter) and demonstrates a specific equilibrium behavior:

• The concave track demonstrates stable equilibrium – the ball returns to its original position after being displaced.
• The flat track represents neutral equilibrium – the ball remains in its new position without returning or moving further away.
• The convex track shows unstable equilibrium – even the slightest disturbance causes the ball to roll away from its starting point.

👨🏫 Classroom Use:
These tracks are perfect for live demonstrations or hands-on learning stations. Students can observe the different behaviors and apply their understanding to real-world systems such as aircraft stability, mechanical design, or structural balance.

💡 Educational Benefit:
This model makes abstract physics concepts visible and interactive. It supports inquiry-based learning, encourages observation and comparison, and lays the foundation for further discussions on restoring forces, system behavior, and dynamic stability.

📦 Print Info:
All three track shapes are provided as separate STL files and can be printed independently. No assembly required – just place them on a table and you're ready to go.