{
  "saved_at_utc": "2026-06-29T06:34:04.653424+00:00",
  "stage": "stage_2_view_selection",
  "provider": "openrouter",
  "model": "qwen/qwen3-vl-30b-a3b-instruct",
  "llm_data": {
    "assembly_info": {
      "title": "Hydraulic Bulldozer Arm Assembly",
      "description": "A hydraulic bulldozer arm assembly designed for precise grading and debris clearing, combining robust mechanical structure with hydraulic actuation for high maneuverability and strength.",
      "material": "Steel"
    },
    "selected_views": [
      {
        "type": "Front",
        "reason": "The front view clearly shows the full height and internal hydraulic cylinder arrangement, revealing the primary actuation mechanism and overall vertical profile."
      },
      {
        "type": "Top",
        "reason": "The top view provides the horizontal layout, showing the arm's width and the relative positioning of the hydraulic cylinders and mounting points."
      },
      {
        "type": "Left",
        "reason": "The left view illustrates the side profile, including the articulation points and the geometry of the arm linkage, which is critical for understanding motion."
      },
      {
        "type": "Isometric",
        "reason": "The isometric view offers a 3D perspective that helps visualize the spatial relationships between components, aiding in assembly and understanding."
      }
    ],
    "section_views": [
      {
        "symbol": "A",
        "normal": [
          0,
          1,
          0
        ],
        "origin": [
          0.0,
          0.0,
          0.0
        ],
        "reason": "A vertical section through the hydraulic cylinder reveals internal bore dimensions and the connection to the arm, which are not visible in external views."
      }
    ],
    "detail_views": [
      {
        "reference": "B",
        "base_view": "Front",
        "anchor": [
          0.0,
          0.0,
          0.0
        ],
        "radius": 15,
        "reason": "This detail magnifies the pivot joint, showing the bearing and bolt arrangement critical for smooth articulation."
      }
    ],
    "dimensions": {
      "Front": [
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 3834.8,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            0.0,
            0.0,
            0.0
          ],
          "value_approx": 100,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "center_distance",
          "dim_type": "Distance",
          "match_strategy": "between_circles",
          "circle_a": {
            "location_3d": [
              0.0,
              0.0,
              0.0
            ],
            "radius_approx": 100
          },
          "circle_b": {
            "location_3d": [
              0.0,
              0.0,
              0.0
            ],
            "radius_approx": 100
          },
          "value_approx": 200,
          "placement": "below",
          "offset_index": 2,
          "tolerance": null
        }
      ],
      "Top": [
        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 917.2,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            0.0,
            0.0,
            0.0
          ],
          "value_approx": 80,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        }
      ],
      "Left": [
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 3834.8,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "angle",
          "dim_type": "Angle",
          "match_strategy": "nearest_angle_edges",
          "value_approx": 45,
          "placement": "above",
          "offset_index": 1,
          "tolerance": null
        }
      ],
      "Isometric": [
        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 917.2,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 3834.8,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        }
      ],
      "Section A-A": [
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            0.0,
            0.0,
            0.0
          ],
          "value_approx": 120,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "wall_thickness",
          "dim_type": "Distance",
          "match_strategy": "nearest_parallel_edges",
          "location_3d": [
            0.0,
            0.0,
            0.0
          ],
          "value_approx": 15,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        }
      ],
      "Detail B": [
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            0.0,
            0.0,
            0.0
          ],
          "value_approx": 20,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "center_distance",
          "dim_type": "Distance",
          "match_strategy": "between_circles",
          "circle_a": {
            "location_3d": [
              0.0,
              0.0,
              0.0
            ],
            "radius_approx": 10
          },
          "circle_b": {
            "location_3d": [
              0.0,
              0.0,
              0.0
            ],
            "radius_approx": 10
          },
          "value_approx": 50,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        }
      ]
    }
  }
}