Gears and transmission
Printable Geared Hand Crank Gearbox
- Bounding box
- 146 × 100 × 80 mm
- Engine
- 3D Printing B-rep
- Parameters
- 33
- Published
- October 28, 2026
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The prompt
can you plese design a working mechanical gear box system wich can be 3D printed in multiple parts
Parameters
| Name | Value | Range |
|---|---|---|
| Housing length | 120 mm | 40 – 200 |
| Housing width | 80 mm | 30 – 160 |
| Housing height | 32 mm | 20 – 100 |
| Wall thickness | 4 mm | 1.2 – 8 |
| Floor thickness | 4 mm | 1.2 – 8 |
| Mounting foot length | 20 mm | 8 – 40 |
| Mounting foot width | 14 mm | 6 – 30 |
| Mounting foot thickness | 6 mm | 2 – 12 |
| Foot outward extension | 8 mm | 0 – 20 |
| Shaft diameter | 6 mm | 3 – 12 |
| Shaft clearance hole | 6.2 mm | 3.2 – 12.2 |
| Bushing outer diameter | 10 mm | 6 – 20 |
| Bushing inner diameter | 6.2 mm | 3.2 – 12.2 |
| Bushing length | 6 mm | 3 – 15 |
| Input shaft length | 55 mm | 20 – 100 |
| Intermediate shaft length | 50 mm | 20 – 100 |
| Output shaft length | 55 mm | 20 – 100 |
| Input shaft flat length | 12 mm | 0 – 30 |
| Output shaft flat length | 10 mm | 0 – 30 |
| Gear module | 1.5 mm | 0.5 – 4 |
| Input pinion tooth count | 12 mm | 6 – 40 |
| Intermediate large gear tooth count | 36 mm | 10 – 60 |
| Intermediate small gear tooth count | 12 mm | 6 – 40 |
| Output gear tooth count | 36 mm | 10 – 60 |
| Input/intermediate gear face width | 10 mm | 4 – 25 |
| Output gear face width | 12 mm | 4 – 25 |
| Cover thickness | 4 mm | 2 – 10 |
| M3 clearance hole | 3.4 mm | 2.5 – 5 |
| Crank arm length | 45 mm | 20 – 100 |
| Crank arm thickness | 8 mm | 4 – 16 |
| Crank handle diameter | 10 mm | 5 – 20 |
| Crank handle height | 18 mm | 8 – 40 |
| Crank bore | 6.2 mm | 3.2 – 12.2 |
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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