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Spring Generator - Fully Parametric Springs

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0.2mm layer, 2 walls, 15% infill (Test)
0.2mm layer, 2 walls, 15% infill (Test)
Designer
12 min
1 plate

Open in Bambu Studio
Boost
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Released 

Description

Boost Me (for free)

Have an unused Boost? I'd love to have it! ;) Thanks

Spring Generator | Fully Parametric Springs

⚠️ Click on Customize to open the generator.

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

 

⚠️ Please don't hesitate to give me feedback in the comments so that I can update the model ⚠️

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License

This user content is licensed under a Standard Digital File License.

You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.