{
  "saved_at_utc": "2026-07-02T10:06:50.291429+00:00",
  "stage": "stage_2_view_selection",
  "provider": "openrouter",
  "model": "qwen/qwen3-vl-30b-a3b-instruct",
  "llm_data": {
    "assembly_info": {
      "title": "Exhaust System Assembly",
      "description": "This assembly is a custom exhaust system designed for a Smith Gym Machine, consisting of a muffler and a series of connecting pipes with flanges and mounting points.",
      "material": "Stainless Steel"
    },
    "selected_views": [
      {
        "type": "Front",
        "reason": "The Front view clearly shows the overall layout of the exhaust system, including the cylindrical muffler, the inlet pipe, and the outlet pipe with its bends, providing the primary perspective for understanding the component's form."
      },
      {
        "type": "Top",
        "reason": "The Top view is essential as it reveals the circular cross-sections of the pipes and the flange, showing the diameter of the inlet and outlet connections and the alignment of the bends in the horizontal plane."
      },
      {
        "type": "Left",
        "reason": "The Left view provides a profile of the assembly, clearly showing the depth and the thickness of the muffler and the connection point to the inlet pipe, which is not fully visible in the Front or Top views."
      },
      {
        "type": "Isometric",
        "reason": "The Isometric view is crucial for providing a 3D context, allowing the viewer to understand the spatial relationship between all components, including the bends and the overall orientation of the system."
      }
    ],
    "section_views": [
      {
        "symbol": "A-A",
        "normal": [
          1,
          0,
          0
        ],
        "origin": [
          152.09,
          0.0,
          0.0
        ],
        "reason": "This section cut along the X-axis through the center of the muffler reveals the internal bore diameter and the wall thickness, which are critical for manufacturing and ensuring proper flow."
      }
    ],
    "detail_views": [
      {
        "reference": "B",
        "base_view": "Front",
        "anchor": [
          329.0,
          -59.5,
          0.0
        ],
        "radius": 15,
        "reason": "This detail view magnifies the flange and mounting holes at the outlet, which are small features requiring precise dimensions for proper assembly."
      }
    ],
    "dimensions": {
      "Front": [
        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 693.8,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            329.0,
            -59.5,
            0.0
          ],
          "value_approx": 32.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "linear_distance",
          "dim_type": "Distance",
          "match_strategy": "nearest_edge_pair",
          "value_approx": 297.3,
          "placement": "above",
          "offset_index": 2,
          "tolerance": null
        },
        {
          "type": "center_distance",
          "dim_type": "Distance",
          "match_strategy": "between_circles",
          "circle_a": {
            "location_3d": [
              329.0,
              -59.5,
              0.0
            ],
            "radius_approx": 16.0
          },
          "circle_b": {
            "location_3d": [
              81.5,
              -0.0,
              0.0
            ],
            "radius_approx": 15.0
          },
          "value_approx": 247.5,
          "placement": "below",
          "offset_index": 3,
          "tolerance": null
        }
      ],
      "Top": [
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            329.0,
            -59.5,
            0.0
          ],
          "value_approx": 32.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            81.5,
            -0.0,
            0.0
          ],
          "value_approx": 30.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        },
        {
          "type": "linear_distance",
          "dim_type": "Distance",
          "match_strategy": "nearest_edge_pair",
          "value_approx": 297.3,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        }
      ],
      "Left": [
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 327.0,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            329.0,
            -59.5,
            0.0
          ],
          "value_approx": 32.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        }
      ],
      "Isometric": [
        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 693.8,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 327.0,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        }
      ],
      "Section A-A": [
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            329.0,
            -59.5,
            0.0
          ],
          "value_approx": 88.7,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "wall_thickness",
          "dim_type": "Distance",
          "match_strategy": "nearest_parallel_edges",
          "location_3d": [
            329.0,
            -59.5,
            0.0
          ],
          "value_approx": 2.0,
          "placement": "leader",
          "offset_index": 2
        }
      ],
      "Detail B": [
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            329.0,
            -59.5,
            0.0
          ],
          "value_approx": 32.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "center_distance",
          "dim_type": "Distance",
          "match_strategy": "between_circles",
          "circle_a": {
            "location_3d": [
              329.0,
              -59.5,
              0.0
            ],
            "radius_approx": 16.0
          },
          "circle_b": {
            "location_3d": [
              329.0,
              -59.5,
              -4.5
            ],
            "radius_approx": 1.0
          },
          "value_approx": 4.5,
          "placement": "below",
          "offset_index": 2,
          "tolerance": null
        }
      ]
    }
  }
}