Gears and transmission
Cat Spinner Finger Ring Assembly
- Bounding box
- 24.0 × 22.0 × 29.6 mm
- Engine
- Precision B-rep
- Parameters
- 28
- Published
- November 14, 2026
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The prompt
Create a functional 3D printable finger ring with a miniature cat-shaped fidget spinner mounted on top, like a decorative gemstone. The design must have three separate components: 1. A comfortable finger ring with a smooth interior and a sturdy upper mounting structure. 2. A small cat-shaped spinner rotor featuring recognizable cat ears, a cute feline face and a compact symmetrical design. 3. A central rotating mechanism using a miniature bearing or a suitable mechanical axle, allowing the cat-shaped rotor to spin freely and independently from the ring. Mechanical requirements: - The spinner must rotate smoothly. - The ring must remain stationary while the cat spinner rotates. - The spinner must be securely attached without becoming loose. - All components must be suitable for FDM 3D printing. - Include appropriate mechanical clearances and tolerances. - Avoid unnecessary supports and fragile details. Generate the ring, mounting structure and cat spinner as separate editable 3D components, then assemble them into one functional design. Provide individual STL files for 3D printing and a complete STEP assembly.
Parameters
| Name | Value | Range |
|---|---|---|
| Ring Inner Diameter | 17.5 mm | 12 – 24 |
| Band Radial Thickness | 2.8 mm | 1.5 – 5 |
| Band Width (axial) | 5 mm | 2 – 10 |
| Band Edge Fillet | 0.6 mm | 0 – 1.2 |
| Saddle Length (X) | 12 mm | 8 – 20 |
| Saddle Width (Y) | 9 mm | 5 – 16 |
| Saddle Height | 4 mm | 2 – 8 |
| Axle Hole Diameter | 3.4 mm | 2.5 – 6 |
| Axle-Head Counterbore Dia | 7 mm | 4 – 12 |
| Counterbore Depth | 1.6 mm | 0.6 – 4 |
| Cat Width | 24 mm | 14 – 40 |
| Cat Height | 22 mm | 14 – 40 |
| Rotor Plate Thickness | 3 mm | 1.5 – 8 |
| Ear Height | 5 mm | 0 – 10 |
| Hub Diameter | 7 mm | 4 – 14 |
| Hub Boss Height | 0.4 mm | 0 – 3 |
| Eye Recess Diameter | 2.2 mm | 0.8 – 5 |
| Eye Spacing | 9.2 mm | 3 – 20 |
| Eye Height Position | 3.2 mm | -4 – 10 |
| Nose Position | -4.6 mm | -10 – 0 |
| Face Recess Depth | 0.8 mm | 0.2 – 1.5 |
| Axle Shaft Diameter | 3 mm | 1.5 – 6 |
| Axle Overall Length | 9 mm | 5 – 20 |
| Lower Flange Diameter | 6.6 mm | 3 – 12 |
| Lower Flange Thickness | 1.5 mm | 0.5 – 4 |
| Retainer Cap Diameter | 6.8 mm | 3 – 12 |
| Cap Snap Bore Diameter | 2.8 mm | 1.4 – 5.9 |
| Axial Running Clearance | 0.3 mm | 0.1 – 1 |
Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.
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