Gears and transmission
Planetary Gear Crank Pencil Sharpener
- Bounding box
- 85.8 × 69.6 × 60 mm
- Engine
- 3D Printing B-rep
- Parameters
- 14
- Published
- November 13, 2026
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The prompt
planetary gear system crank pencil sharpener
Parameters
| Name | Value | Range |
|---|---|---|
| Gear module / tooth size | 2 mm | 1 – 4 |
| Sun gear teeth | 12 mm | 8 – 30 |
| Planet gear teeth | 9 mm | 7 – 20 |
| Ring gear teeth (sun + 2 x planet) | 30 mm | 16 – 60 |
| Gear thickness / tooth height | 8 mm | 4 – 16 |
| Housing wall thickness | 3 mm | 1.5 – 8 |
| Housing height | 36 mm | 20 – 80 |
| Floor thickness | 6 mm | 3 – 12 |
| Pencil hole diameter | 8.5 mm | 6 – 14 |
| Pencil hole height | 24 mm | 10 – 70 |
| Planet pin diameter | 4 mm | 3 – 8 |
| Crank arm length | 45 mm | 20 – 90 |
| Crank shaft diameter | 6 mm | 4 – 12 |
| Crank knob diameter | 12 mm | 8 – 20 |
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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