This is a fun and satisfying fidget toy inspired by classic coil-spring toys, designed with a unique circle-square shape.
The "Circle-Square Spring Coil Fidget" can be stretched, compressed, or flipped around to relieve stress or simply pass the time.
It’s also a great print to demonstrate flexible 3D printing and tolerances.

Features:

• Fully 3D printable in one piece (no supports required)
• Designed for smooth and consistent spring motion with alternating circular and square coils
• Works as a tactile fidget toy or a simple desktop decoration
• No supports or rafts needed
• Prints well with PLA, ABS, or PETG — for the best visual effect, silk filament is recommended

Usage Tips:

• After printing, gently stretch the model to separate each coil
• If it doesn’t separate easily, it may be due to over-extrusion or insufficient cooling
• In that case, check and calibrate your printer settings related to extrusion and cooling

Note on file naming:

• D = circle diameter (in mm), width, depth
• H = height (in mm)

Example: Circle-Square_SpringFidget_D30H50 → 30 mm circle diameter, 50 mm height

⚙ Parametric Version Available on Maker World!
Customize any size instantly with the parametric model — no need for separate uploads.
(Note: “Sheet Thickness” parameter may be unstable.)

If you need a specific size or shape, feel free to let me know — I’m happy to add it!

You can find my Spring Fidget collection here:
[https://makerworld.com/collections/8486272](https://makerworld.com/collections/8486272)