{
  "saved_at_utc": "2026-06-29T14:40:45.790775+00:00",
  "stage": "stage_2_view_selection",
  "provider": "openrouter",
  "model": "qwen/qwen3-vl-30b-a3b-instruct",
  "llm_data": {
    "assembly_info": {
      "title": "Adafruit CP2102N Friend",
      "description": "A compact USB to Serial converter board designed for microcontroller projects, providing a simple interface between USB and serial communication.",
      "material": "PCB (FR-4), Copper, Solder, Plastic (USB connector)"
    },
    "selected_views": [
      {
        "type": "Top",
        "reason": "The Top view clearly shows the layout of all surface-mounted components, including the main microcontroller, USB connector, and the arrangement of through-holes and pads, which is essential for assembly and inspection."
      },
      {
        "type": "Front",
        "reason": "The Front view provides the overall height profile of the assembly, showing the USB connector's height and the relative positioning of the main board and the connector's housing."
      },
      {
        "type": "Left",
        "reason": "The Left view is necessary to show the depth of the USB connector and the overall length of the board, providing a side profile that complements the Top and Front views."
      },
      {
        "type": "Isometric",
        "reason": "The Isometric view gives a comprehensive 3D perspective of the entire assembly, helping to visualize the spatial relationship between the PCB and the USB connector, which is crucial for understanding the final product."
      }
    ],
    "section_views": [
      {
        "symbol": "A",
        "normal": [
          0,
          1,
          0
        ],
        "origin": [
          0.0,
          0.0,
          0.0
        ],
        "reason": "A section cut along the YZ plane reveals the internal structure of the USB connector, including the height of the pins and the thickness of the PCB, which is critical for ensuring proper fit and function."
      }
    ],
    "detail_views": [
      {
        "reference": "B",
        "base_view": "Top",
        "anchor": [
          8.78,
          13.6,
          0.74
        ],
        "radius": 5,
        "reason": "This detail view magnifies the central microcontroller and its surrounding solder pads, allowing for clear dimensioning of the component's footprint and pin spacing."
      }
    ],
    "dimensions": {
      "Top": [
        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 17.58,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 28.5,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            8.78,
            13.6,
            0.74
          ],
          "value_approx": 5.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "center_distance",
          "dim_type": "Distance",
          "match_strategy": "between_circles",
          "circle_a": {
            "location_3d": [
              8.78,
              13.6,
              0.74
            ],
            "radius_approx": 5.0
          },
          "circle_b": {
            "location_3d": [
              8.78,
              13.6,
              0.74
            ],
            "radius_approx": 5.0
          },
          "value_approx": 10.0,
          "placement": "leader",
          "offset_index": 2
        }
      ],
      "Front": [
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 4.81,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            8.78,
            13.6,
            0.74
          ],
          "value_approx": 5.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        }
      ],
      "Left": [
        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 17.58,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 4.81,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        }
      ],
      "Section A-A": [
        {
          "type": "wall_thickness",
          "dim_type": "Distance",
          "match_strategy": "nearest_parallel_edges",
          "location_3d": [
            8.78,
            13.6,
            0.74
          ],
          "value_approx": 1.6,
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            8.78,
            13.6,
            0.74
          ],
          "value_approx": 5.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        }
      ],
      "Detail B": [
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            8.78,
            13.6,
            0.74
          ],
          "value_approx": 5.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "center_distance",
          "dim_type": "Distance",
          "match_strategy": "between_circles",
          "circle_a": {
            "location_3d": [
              8.78,
              13.6,
              0.74
            ],
            "radius_approx": 5.0
          },
          "circle_b": {
            "location_3d": [
              8.78,
              13.6,
              0.74
            ],
            "radius_approx": 5.0
          },
          "value_approx": 10.0,
          "placement": "leader",
          "offset_index": 2
        }
      ]
    }
  }
}