Brackets and mounts
HappyModel EX1103S Brushless Motor
- Bounding box
- 13.5 × 13.5 × 20.7 mm
- Engine
- 3D Printing B-rep
- Parameters
- 21
- Published
- November 9, 2026
Download
Free to download and use. See the terms.
The prompt
Create a detailed and dimensionally accurate 3D CAD model of the HappyModel EX1103S brushless motor. The model must represent the complete motor assembly, including its outer rotating bell, stator, central shaft, mounting base and internal structural components. 1. Overall dimensions: - Outer motor diameter: 13.5 mm - Overall motor height: 15.5 mm - Stator diameter: 11 mm - Stator height: 3 mm - Shaft diameter: 1.5 mm - Shaft protrusion: approximately 5.2 mm 2. Motor construction: - Brushless outrunner motor configuration. - 9N12P electromagnetic configuration. - 9 stator teeth. - 12 rotor magnets. - Central rotating shaft. - Two bearings supporting the shaft. - Outer bell housing surrounding the stator. 3. Mounting base: - Four-hole mounting
Parameters
| Name | Value | Range |
|---|---|---|
| Motor outer diameter | 13.5 mm | 10 – 20 |
| Bell height | 8 mm | 5 – 12 |
| Bell wall thickness | 0.8 mm | 0.6 – 1.5 |
| Mounting base diameter | 13.5 mm | 10 – 20 |
| Mounting base thickness | 2 mm | 1 – 4 |
| Mounting hole diameter | 2.2 mm | 1.5 – 3.4 |
| Mounting hole bolt circle diameter | 9 mm | 6 – 12 |
| Stator outer diameter | 11 mm | 8 – 16 |
| Stator stack height | 3 mm | 2 – 6 |
| Stator central bore diameter | 1.5 mm | 1 – 3 |
| Number of stator teeth | 9 mm | 3 – 12 |
| Shaft diameter | 1.5 mm | 1 – 3 |
| Shaft length | 20.7 mm | 10 – 30 |
| Shaft protrusion above bell | 5.2 mm | 2 – 10 |
| Bearing inner diameter | 1.5 mm | 1 – 3 |
| Bearing outer diameter | 4 mm | 2 – 6 |
| Bearing height | 1.5 mm | 0.8 – 3 |
| Number of rotor magnets | 12 mm | 6 – 24 |
| Magnet ring inner diameter | 11.2 mm | 8 – 16 |
| Magnet axial height | 3 mm | 2 – 6 |
| Gap between magnet segments | 0.2 mm | 0.05 – 0.5 |
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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