{
  "saved_at_utc": "2026-06-17T10:03:51.918983+00:00",
  "stage": "stage_2_view_selection",
  "provider": "openrouter",
  "model": "qwen/qwen3-vl-30b-a3b-instruct",
  "llm_data": {
    "assembly_info": {
      "title": "Iso 527 2 1a 1 Tensile Specimen",
      "description": "A tensile specimen conforming to ISO 527-2 standard, designed for material strength testing, featuring a central gauge section with threaded ends for clamping.",
      "material": "Steel"
    },
    "selected_views": [
      {
        "type": "Front",
        "reason": "The Front view clearly shows the overall profile, the threaded section, and the transition to the main body, which is essential for understanding the part's geometry and clamping interface."
      },
      {
        "type": "Top",
        "reason": "The Top view provides a clear view of the central gauge section's cross-section, including the hole pattern and the overall width, which are critical for the test's validity."
      },
      {
        "type": "Left",
        "reason": "The Left view reveals the depth of the central section and the internal features, such as the hole pattern, which are not visible in the Front or Top views."
      },
      {
        "type": "Isometric",
        "reason": "The Isometric view offers a 3D perspective, helping to visualize the part's overall shape and the relationship between its different sections."
      }
    ],
    "section_views": [
      {
        "symbol": "A",
        "normal": [
          0,
          1,
          0
        ],
        "origin": [
          0.0,
          0.0,
          0.0
        ],
        "reason": "The section cut along the Y-axis reveals the internal diameter of the central bore and the wall thickness, which are critical for the specimen's mechanical properties."
      }
    ],
    "detail_views": [
      {
        "reference": "B",
        "base_view": "Front",
        "anchor": [
          12.55,
          4.901,
          -2.5
        ],
        "radius": 10,
        "reason": "This detail magnifies the threaded section, showing the thread profile and diameter, which are critical for the clamping mechanism."
      }
    ],
    "dimensions": {
      "Front": [
        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 67.1,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 16.0,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            12.55,
            4.901,
            -2.5
          ],
          "value_approx": 2.5,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            12.55,
            4.901,
            -2.5
          ],
          "value_approx": 3.5,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        }
      ],
      "Top": [
        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 67.1,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 16.0,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            15.059,
            1.275,
            -4.0
          ],
          "value_approx": 1.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            10.596,
            1.005,
            -4.0
          ],
          "value_approx": 0.947,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            9.846,
            0.257,
            -4.0
          ],
          "value_approx": 1.05,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 3
        }
      ],
      "Left": [
        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 67.1,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 16.0,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            12.55,
            4.901,
            -2.5
          ],
          "value_approx": 2.5,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            12.55,
            4.901,
            -2.5
          ],
          "value_approx": 3.5,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        }
      ],
      "Isometric": [
        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 67.1,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 16.0,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            12.55,
            4.901,
            -2.5
          ],
          "value_approx": 2.5,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            12.55,
            4.901,
            -2.5
          ],
          "value_approx": 3.5,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        }
      ],
      "Section A-A": [
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            12.55,
            4.901,
            -2.5
          ],
          "value_approx": 2.5,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            12.55,
            4.901,
            -2.5
          ],
          "value_approx": 3.5,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        },
        {
          "type": "wall_thickness",
          "dim_type": "Distance",
          "match_strategy": "nearest_parallel_edges",
          "value_approx": 0.5,
          "placement": "leader",
          "offset_index": 3,
          "tolerance": null
        }
      ],
      "Detail B": [
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            12.55,
            4.901,
            -2.5
          ],
          "value_approx": 2.5,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            12.55,
            4.901,
            -2.5
          ],
          "value_approx": 3.5,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        }
      ]
    }
  }
}