{
  "saved_at_utc": "2026-07-05T15:28:11.771603+00:00",
  "stage": "stage_2_view_selection",
  "provider": "openrouter",
  "model": "qwen/qwen3-vl-30b-a3b-instruct",
  "llm_data": {
    "assembly_info": {
      "title": "Robotic Arm MeArm type VF",
      "description": "A first concept of a robotic arm based on the open-source MeArm, using an Arduino Nano and SG90 servos for control. The design includes a modular structure with a power supply requirement of 5-6V.",
      "material": "Plastic (3D printed)"
    },
    "selected_views": [
      {
        "type": "Front",
        "reason": "The Front view clearly shows the main body, the central mounting plate with the servo and gear assembly, and the overall vertical profile, which is essential for understanding the primary structure and component layout."
      },
      {
        "type": "Top",
        "reason": "The Top view provides a clear perspective of the base plate, the arrangement of the servo motors, and the overall horizontal footprint, which is crucial for assembly and space planning."
      },
      {
        "type": "Isometric",
        "reason": "The Isometric view offers a comprehensive 3D perspective of the entire robotic arm, showing the spatial relationships between all components, including the arm linkage and the mounting bracket, which helps in visualizing the complete assembly."
      },
      {
        "type": "Left",
        "reason": "The Left view reveals the side profile, showing the depth of the arm and the connection points for the servo motors and the arm linkage, which is important for understanding the mechanical constraints and movement."
      }
    ],
    "section_views": [
      {
        "symbol": "A",
        "normal": [
          0,
          1,
          0
        ],
        "origin": [
          0.0,
          0.0,
          0.0
        ],
        "reason": "A section cut along the Y-axis reveals the internal bore and wall thickness of the central shaft, which is critical for understanding the structural integrity and assembly of the main rotating component."
      },
      {
        "symbol": "B",
        "normal": [
          0,
          0,
          1
        ],
        "origin": [
          0.0,
          0.0,
          0.0
        ],
        "reason": "A horizontal section cut along the Z-axis exposes the internal cavity and the arrangement of the servo mounting holes, which is necessary for verifying the fit and clearance of internal components."
      }
    ],
    "detail_views": [
      {
        "reference": "C",
        "base_view": "Front",
        "anchor": [
          30.924,
          5.0,
          55.233
        ],
        "radius": 20,
        "reason": "This detail view magnifies the central bore and the surrounding mounting holes, which are critical for the alignment and stability of the servo and the arm linkage."
      },
      {
        "reference": "D",
        "base_view": "Top",
        "anchor": [
          27.209,
          4.1,
          79.316
        ],
        "radius": 20,
        "reason": "This detail view focuses on the bolt pattern of the base plate, which is essential for ensuring proper alignment and secure attachment to the mounting surface."
      }
    ],
    "dimensions": {
      "Front": [
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 152.1,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            30.924,
            5.0,
            55.233
          ],
          "value_approx": 0.65,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            30.924,
            5.0,
            88.158
          ],
          "value_approx": 1.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        },
        {
          "type": "center_distance",
          "dim_type": "Distance",
          "match_strategy": "between_circles",
          "circle_a": {
            "location_3d": [
              30.924,
              5.0,
              55.233
            ],
            "radius_approx": 0.325
          },
          "circle_b": {
            "location_3d": [
              30.924,
              5.0,
              88.158
            ],
            "radius_approx": 0.5
          },
          "value_approx": 32.925,
          "placement": "above",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            25.844,
            5.9,
            55.233
          ],
          "value_approx": 2.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 3
        }
      ],
      "Top": [
        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 236.7,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            27.209,
            4.1,
            79.316
          ],
          "value_approx": 0.6,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "bolt_pattern",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            27.209,
            4.1,
            79.316
          ],
          "value_approx": 26.3,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            26.778,
            6.447,
            77.381
          ],
          "value_approx": 1.6,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 3
        }
      ],
      "Isometric": [
        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 236.7,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 152.1,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "overall_depth",
          "dim_type": "DistanceZ",
          "match_strategy": "extreme_vertices_z",
          "value_approx": 351.0,
          "placement": "left",
          "offset_index": 1,
          "tolerance": null
        }
      ],
      "Left": [
        {
          "type": "overall_depth",
          "dim_type": "DistanceZ",
          "match_strategy": "extreme_vertices_z",
          "value_approx": 351.0,
          "placement": "left",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            30.924,
            5.0,
            55.233
          ],
          "value_approx": 0.65,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            25.844,
            5.9,
            55.233
          ],
          "value_approx": 2.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        }
      ],
      "Section A-A": [
        {
          "type": "wall_thickness",
          "dim_type": "Distance",
          "match_strategy": "nearest_parallel_edges",
          "location_3d": [
            30.924,
            5.0,
            55.233
          ],
          "value_approx": 0.1,
          "placement": "left",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            30.924,
            5.0,
            55.233
          ],
          "value_approx": 0.65,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            30.924,
            5.0,
            88.158
          ],
          "value_approx": 1.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        }
      ],
      "Section B-B": [
        {
          "type": "wall_thickness",
          "dim_type": "Distance",
          "match_strategy": "nearest_parallel_edges",
          "location_3d": [
            30.924,
            5.0,
            55.233
          ],
          "value_approx": 0.1,
          "placement": "left",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            30.924,
            5.0,
            55.233
          ],
          "value_approx": 0.65,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            30.924,
            5.0,
            88.158
          ],
          "value_approx": 1.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        }
      ],
      "Detail C": [
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            30.924,
            5.0,
            55.233
          ],
          "value_approx": 0.65,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            30.924,
            5.0,
            88.158
          ],
          "value_approx": 1.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        }
      ],
      "Detail D": [
        {
          "type": "bolt_pattern",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            27.209,
            4.1,
            79.316
          ],
          "value_approx": 26.3,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            27.209,
            4.1,
            79.316
          ],
          "value_approx": 0.6,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        }
      ]
    }
  }
}