Enclosures and housings
3-Piece Modular Dart Barrel
- Bounding box
- 47.0 × 6.5 × 6.5 mm
- Engine
- Precision B-rep
- Parameters
- 14
- Published
- October 22, 2026
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Free to download and use. See the terms.
The prompt
Create a 3D CAD model of an assembly for a 3-piece modular cylindrical dart barrel with the following precise specifications: Overall Assembly Dimensions: Total outer length of 47 mm and a constant outer diameter of 6.5 mm along the central axis. Outer Grip & Surface Features: A smooth 5 mm solid section at the front outer end. A smooth 5 mm solid section at the rear outer end. Along the middle 37 mm section, repeated circumferential ring grooves. Each groove is 0.5 mm deep and 0.5 mm wide, with 1.0 mm flat spacing between consecutive grooves. 3-Piece Segment Split (15.67 mm length per module): Front Module (Length 15.67 mm): Front end features a centered 2BA internal threaded hole (depth 6 mm) for a screw point. Rear face features an internal threaded hole (M3 thread, depth 5 mm). Middle Module (Length 15.67 mm): Front face features an M3 external threaded stud (length 4.5 mm) to thread into the Front Module. Rear face features an internal threaded hole (M3 thread, depth 5 mm). Rear Module (Length 15.67 mm): Front face features an M3 external threaded stud (length 4.5 mm) to thread into the Middle Module. Rear end features a centered 2BA internal threaded hole (depth 6 mm) for a shaft. Output: Export as 3 separate interlocking solid parts (Front, Middle, Rear) in a single STEP assembly file.
Parameters
| Name | Value | Range |
|---|---|---|
| Module Length | 15.67 mm | 8 – 40 |
| Outer Diameter | 6.5 mm | 4 – 20 |
| Smooth Front Section | 5 mm | 0 – 14 |
| Smooth Rear Section | 5 mm | 0 – 14 |
| Ring Groove Depth | 0.5 mm | 0.05 – 1 |
| Ring Groove Width | 0.5 mm | 0.1 – 3 |
| Flat Spacing Between Grooves | 1 mm | 0.2 – 5 |
| M3 Stud Length | 4.5 mm | 1 – 10 |
| M3 Stud Major Diameter | 3 mm | 2 – 5 |
| M3 Tapped Bore Diameter | 2.5 mm | 2 – 4.5 |
| M3 Bore Depth | 5 mm | 2 – 12 |
| 2BA Tapped Bore Diameter | 3.9 mm | 2.5 – 5.5 |
| 2BA Bore Depth | 6 mm | 2 – 14 |
| Entry Chamfer | 0.2 mm | 0 – 0.6 |
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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