Mechanical Spring Fidget Toy / Pocket Fidget

Hello! I would like to share my custom-designed fidget toy, created from scratch in Fusion 360.

The core of this design is an integrated, flexible spring mechanism. When you press it, the internal spring gently flexes, allowing the top part to smoothly move down and snap back up. It provides a super satisfying tactile feedback and is a perfect pocket companion to keep your hands busy!

Important Note regarding Seams: To ensure the moving parts don't get accidentally fused ("welded") together, I highly recommend setting the Seam Position to 'Random' in your slicer settings. If the slicer aligns all the seams in one line inside the mechanism gaps, the small plastic blobs might stick the parts together.

Print Settings & Recommendations:

• Layer Height: 0.16 mm (Recommended for smooth mechanical action)
• Infill: 15%
• Infill Pattern: Grid
• Supports: REQUIRED. Because of the internal spring geometry, this model needs support. For the best results, I highly recommend using Tree Supports (Slim or Organic) in Bambu Studio. It requires quite a bit of support interface, but with tree supports, it prints beautifully and comes off clean!

Author's Note: I'm still quite new to 3D modeling and designing for 3D printing – this is only one of my first few models! It prints and works well for me, but I would absolutely love to hear your feedback. If you have any tips on how I could improve the geometry, tolerances, or design next time to make it even better, please let me know in the comments!

Enjoy the print and share your makes!