Jigs and fixtures
Modular Four-Way Shelter Connector (Exploded Kit)
- Bounding box
- 877.0 × 170.0 × 91.0 mm
- Engine
- Precision B-rep
- Parameters
- 28
- Published
- November 12, 2026
Download
Free to download and use. See the terms.
The prompt
Create a realistic mechanical CAD model of a modular four-way connector for emergency shelter frames. The connector consists of a central cross-shaped hub with four perpendicular tube-receiving ports arranged in one plane. Each port features a standardised cartridge-receiving interface designed to accept interchangeable gripping cartridges. The cartridges have identical external dimensions but different internal circular diameters, accommodating different commercially available PVC pipe sizes within a proposed 25–50 mm nominal range. Each cartridge incorporates segmented gripping elements compressed by a common quarter-turn cam-operated locking collar. Include a positive mechanical retention feature and accessible release mechanism. Design the central hub, cartridges and collars as separate FDM-printable components. Ensure moving parts are accessible and can be assembled without trapped components. Provide an assembled isometric view, exploded view, sectional view of the locking mechanism and three interchangeable cartridge examples. Use a professional engineering prototype aesthetic.
Parameters
| Name | Value | Range |
|---|---|---|
| Hub overall length X/Y | 170 mm | 120 – 260 |
| Arm / port boss width | 84 mm | 72 – 140 |
| Hub height (Z) | 84 mm | 72 – 140 |
| Cartridge port bore | 72 mm | 50 – 110 |
| Port socket depth | 50 mm | 30 – 80 |
| Wall / stop shoulder width | 6 mm | 3 – 12 |
| Open latch pocket depth | 4 mm | 2 – 8 |
| External rib height | 8 mm | 3 – 20 |
| External rib thickness | 6 mm | 3 – 12 |
| Cartridge outside diameter | 72 mm | 50 – 110 |
| Cartridge length | 55 mm | 35 – 90 |
| Cartridge A bore (25 mm pipe) | 25.4 mm | 18 – 34 |
| Cartridge B bore (32 mm pipe) | 32 mm | 24 – 40 |
| Cartridge C bore (50 mm pipe) | 50 mm | 40 – 60 |
| Wedge slots per cartridge | 6 count | 3 – 8 |
| Wedge slot width | 9 mm | 6 – 16 |
| Wedge slot length (from nose) | 26 mm | 12 – 45 |
| Locking collar OD | 84 mm | 60 – 120 |
| Locking collar bore | 72.5 mm | 52 – 112 |
| Locking collar height | 18 mm | 10 – 30 |
| Internal cam ramp depth | 2.5 mm | 1 – 6 |
| Grip segment radial thickness | 8 mm | 4 – 14 |
| Grip segment width | 12 mm | 6 – 20 |
| Grip segment length | 22 mm | 12 – 35 |
| Latch beam length | 24 mm | 14 – 40 |
| Latch beam width | 6 mm | 3 – 12 |
| Latch beam height | 5 mm | 3 – 10 |
| Exploded layout spacing | 130 mm | 80 – 260 |
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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