{
  "saved_at_utc": "2026-06-20T17:19:24.993919+00:00",
  "stage": "stage_2_view_selection",
  "provider": "openrouter",
  "model": "qwen/qwen3-vl-30b-a3b-instruct",
  "llm_data": {
    "assembly_info": {
      "title": "Stepper Driver CS-D508",
      "description": "A compact stepper driver module for controlling stepper motors, featuring a robust metal housing, terminal block for electrical connections, and mounting holes for secure installation.",
      "material": "Aluminum"
    },
    "selected_views": [
      {
        "type": "Front",
        "reason": "The Front view clearly shows the overall rectangular shape, the terminal block layout, and the mounting holes on the top surface, providing the primary reference for the part's dimensions and features."
      },
      {
        "type": "Top",
        "reason": "The Top view reveals the internal cavity, the arrangement of the terminal block, and the mounting holes, which are not visible in the Front view, and confirms the overall length and width."
      },
      {
        "type": "Left",
        "reason": "The Left view shows the depth of the component, the thickness of the side walls, and the internal structure, including the mounting flanges and the internal cavity, which are critical for understanding the part's volume and fit."
      },
      {
        "type": "Isometric",
        "reason": "The Isometric view provides a 3D perspective that helps visualize the overall shape, the relationship between the top and side features, and the internal cavity, aiding in comprehension of the part's geometry."
      }
    ],
    "section_views": [
      {
        "symbol": "A",
        "normal": [
          0,
          1,
          0
        ],
        "origin": [
          0.0,
          16.79,
          0.0
        ],
        "reason": "This section cut along the Y-axis reveals the internal cavity, the depth of the terminal block, and the wall thickness, which are not visible in the orthographic views."
      }
    ],
    "detail_views": [
      {
        "reference": "B",
        "base_view": "Front",
        "anchor": [
          0.0,
          0.0,
          0.0
        ],
        "radius": 10,
        "reason": "This detail view magnifies the terminal block, showing the individual pin positions and spacing, which are critical for electrical connections."
      }
    ],
    "dimensions": {
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        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 116.0,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 26.5,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
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          "value_approx": 5.0,
          "tolerance": null,
          "placement": "leader",
          "offset_index": 1
        },
        {
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          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
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          "value_approx": 5.0,
          "tolerance": null,
          "placement": "leader",
          "offset_index": 2
        },
        {
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          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
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          "value_approx": 4.0,
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          "value_approx": 3.0,
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          "placement": "leader",
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        {
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          "dim_type": "Diameter",
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          "value_approx": 3.0,
          "tolerance": null,
          "placement": "leader",
          "offset_index": 6
        }
      ],
      "Top": [
        {
          "type": "overall_length",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
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          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "overall_width",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
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          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
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          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
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          "value_approx": 5.0,
          "tolerance": null,
          "placement": "leader",
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          "dim_type": "Diameter",
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          "value_approx": 5.0,
          "tolerance": null,
          "placement": "leader",
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        {
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          "dim_type": "Diameter",
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          "tolerance": null,
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          "tolerance": null,
          "placement": "leader",
          "offset_index": 4
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          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
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        {
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          "value_approx": 3.0,
          "tolerance": null,
          "placement": "leader",
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      "Left": [
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          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 26.5,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 116.0,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
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          "value_approx": 5.0,
          "tolerance": null,
          "placement": "leader",
          "offset_index": 1
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        {
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          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
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          "value_approx": 5.0,
          "tolerance": null,
          "placement": "leader",
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        {
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          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
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          "value_approx": 4.0,
          "tolerance": null,
          "placement": "leader",
          "offset_index": 3
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        {
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          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
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          "value_approx": 4.0,
          "tolerance": null,
          "placement": "leader",
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        },
        {
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          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
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          ],
          "value_approx": 3.0,
          "tolerance": null,
          "placement": "leader",
          "offset_index": 5
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
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          ],
          "value_approx": 3.0,
          "tolerance": null,
          "placement": "leader",
          "offset_index": 6
        }
      ],
      "Isometric": [
        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 116.0,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 26.5,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
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          "value_approx": 5.0,
          "tolerance": null,
          "placement": "leader",
          "offset_index": 1
        },
        {
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          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
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          "value_approx": 5.0,
          "tolerance": null,
          "placement": "leader",
          "offset_index": 2
        },
        {
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          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
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          "value_approx": 4.0,
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        {
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        {
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          "value_approx": 3.0,
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          "placement": "leader",
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        {
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          "dim_type": "Diameter",
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          "value_approx": 3.0,
          "tolerance": null,
          "placement": "leader",
          "offset_index": 6
        }
      ],
      "Section A-A": [
        {
          "type": "wall_thickness",
          "dim_type": "Distance",
          "match_strategy": "nearest_parallel_edges",
          "value_approx": 1.0,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
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          "dim_type": "Diameter",
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          "value_approx": 5.0,
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        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
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          "value_approx": 5.0,
          "tolerance": null,
          "placement": "leader",
          "offset_index": 2
        },
        {
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          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
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          "value_approx": 4.0,
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        {
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        {
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        {
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          "value_approx": 3.0,
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        }
      ],
      "Detail B": [
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        {
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        {
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          "offset_index": 3
        },
        {
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        },
        {
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        {
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      ]
    }
  }
}