Spring Generator | Fully Parametric Springs

Universal 3D Flat Spring | 100% Fully Parametric
For a generation of springs with endless variety... and no limits

Tired of digging through drawers for the perfect spring or redesigning your entire model to fit a standard part? This project is the ultimate plastic flat spring generator, engineered to adapt to YOUR specific needs.

From simple latch mechanisms to heavy-duty shock absorbers, this model leverages the power of parametric design to offer total flexibility.

🚀 Why is this a must-have tool?

Unlike static STLs, this spring is designed as a versatile engineering component:

• Total Adaptability: Modify length, width, leaf thickness, and the number of coils in seconds.
• Mechanical Performance: The geometry is optimized to distribute stress evenly, preventing premature plastic fatigue and snapping.
• Zero Supports: Designed to be printed flat, ensuring perfect bed adhesion and maximum layer strength.
• Customizer Ready: Fully compatible with MakerWorld’s online Customizer (OpenSCAD).

🛠️ Endless Use Cases

Where can you use it? Here are just a few ideas:

1. Latch Mechanisms: For 3D printed boxes, lids, or doors.
2. Tactile Buttons: Create a satisfying "clicky" feel for your electronic enclosures.
3. Shock Absorbers: Perfect for drone landing gear or small robotics.
4. Gravity Feeders: Tension systems for battery dispensers or card holders.

⚙️ How to Customize Your Spring

Adjust these key parameters to dial in the perfect "Spring Rate" (force):

• Wall Thickness ($t$): Thicker walls = higher stiffness and resistance.
• Number of Segments: More "zig-zags" allow for a longer travel distance (stroke).
• Width ($w$): Increase width for better lateral stability and overall force.

💡 Pro Tip: For maximum durability and "memory," I recommend using PETG or Polycarbonate (PC). PLA works great for light-duty tasks, but may lose its tension over time under constant load.

Love this project? Don't forget to post your Makes and let me know how you integrated the spring into your designs! Your feedback helps me refine the parametric script.

⭐ Add this to your favorites so you never run out of springs again!

 Revision History :

• V1.0 - 2026-03-31 : Basic model that may have minor imperfections but is fully functional and compatible