model.json

{
    "name": "TJoint",
    "joint": {
        "name": "TJoint",
        "tubes": [
            {
                "name": "Vertical",
                "axis": {
                    "point": {
                        "x": 0.0,
                        "y": 0.0,
                        "z": 0.0
                    },
                    "vector": {
                        "x": 0.0,
                        "y": 0.0,
                        "z": 5.0
                    }
                },
                "diameter": 0.5
            },
            {
                "name": "Horizontal",
                "axis": {
                    "point": {
                        "x": 0.0,
                        "y": 0.0,
                        "z": 3.0
                    },
                    "vector": {
                        "x": 3.0,
                        "y": 0.0,
                        "z": 0.0
                    }
                },
                "diameter": 0.25
            }
        ],
        "origin": null
    }
}