{
  "saved_at_utc": "2026-06-20T10:20:59.740325+00:00",
  "stage": "stage_2_view_selection",
  "provider": "openrouter",
  "model": "qwen/qwen3-vl-30b-a3b-instruct",
  "llm_data": {
    "assembly_info": {
      "title": "Payload Dropping Mechanism",
      "description": "A device for a UAV to release cargo from the air, consisting of a servo motor and a release mechanism that operates a flap to drop the payload.",
      "material": "Aluminum Alloy"
    },
    "selected_views": [
      {
        "type": "Front",
        "reason": "The front view clearly shows the overall profile of the mechanism, including the flange, the central bore, and the mounting holes, which are critical for assembly and integration."
      },
      {
        "type": "Top",
        "reason": "The top view reveals the circular arrangement of the internal components, such as the fan blades and the central hub, which are essential for understanding the airflow and structural layout."
      },
      {
        "type": "Left",
        "reason": "The left view provides a side profile that shows the depth of the mechanism and the alignment of the internal components, which is important for spatial understanding."
      },
      {
        "type": "Isometric",
        "reason": "The isometric view offers a 3D perspective that helps visualize the entire assembly, including the relationship between the external housing and internal components."
      }
    ],
    "section_views": [
      {
        "symbol": "A",
        "normal": [
          0,
          1,
          0
        ],
        "origin": [
          232.43,
          298.4,
          287.84
        ],
        "reason": "This section cut reveals the internal structure of the mechanism, including the central bore, the fan blades, and the mounting flange, which are not visible in external views."
      }
    ],
    "detail_views": [
      {
        "reference": "B",
        "base_view": "Front",
        "anchor": [
          245.187,
          217.7,
          289.594
        ],
        "radius": 10,
        "reason": "This detail magnifies the central bore and the surrounding flange, which are critical for the mechanism's operation and assembly."
      }
    ],
    "dimensions": {
      "Front": [
        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 412.2,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 471.0,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            245.187,
            217.7,
            289.594
          ],
          "value_approx": 270.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            245.187,
            217.7,
            138.794
          ],
          "value_approx": 235.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            414.702,
            269.7,
            289.594
          ],
          "value_approx": 30.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 3
        }
      ],
      "Top": [
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            245.187,
            217.7,
            289.594
          ],
          "value_approx": 270.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            245.187,
            217.7,
            138.794
          ],
          "value_approx": 235.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            237.487,
            213.8,
            289.594
          ],
          "value_approx": 341.644,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 3
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            230.487,
            249.0,
            289.594
          ],
          "value_approx": 412.745,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 4
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            252.087,
            257.7,
            289.594
          ],
          "value_approx": 458.208,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 5
        }
      ],
      "Left": [
        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 412.2,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 471.0,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            245.187,
            217.7,
            289.594
          ],
          "value_approx": 270.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            245.187,
            217.7,
            138.794
          ],
          "value_approx": 235.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 3
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            414.702,
            269.7,
            289.594
          ],
          "value_approx": 30.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 4
        }
      ],
      "Isometric": [
        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 412.2,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 471.0,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            245.187,
            217.7,
            289.594
          ],
          "value_approx": 270.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            245.187,
            217.7,
            138.794
          ],
          "value_approx": 235.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 3
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
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            213.8,
            289.594
          ],
          "value_approx": 341.644,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 4
        }
      ],
      "Section A-A": [
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
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            217.7,
            289.594
          ],
          "value_approx": 270.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            245.187,
            217.7,
            138.794
          ],
          "value_approx": 235.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            237.487,
            213.8,
            289.594
          ],
          "value_approx": 341.644,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 3
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            230.487,
            249.0,
            289.594
          ],
          "value_approx": 412.745,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 4
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
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            257.7,
            289.594
          ],
          "value_approx": 458.208,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 5
        }
      ],
      "Detail B": [
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
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            289.594
          ],
          "value_approx": 270.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
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            217.7,
            138.794
          ],
          "value_approx": 235.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            237.487,
            213.8,
            289.594
          ],
          "value_approx": 341.644,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 3
        }
      ]
    }
  }
}