run 20260428T213558Z-f74c

Summary

Prompt

Make an L-shaped mounting bracket. The base lies in the XY plane, occupying x in [0, 50], y in [0, 30], z in [0, 4] (50mm long, 30mm wide, 4mm thick). A vertical wall stands on the +X edge: x in [46, 50], y in [0, 30], z in [4, 30] (4mm thick, 30mm wide, rising to z = 30). Two through-holes of diameter 5mm pierce the base parallel to Z, centered at (10, 15) and (35, 15) on the top face. Output a single solid.

Checks

params: {
  "type": "valid_solid"
}

details: {
  "root_count": 1,
  "solids_produced": 1
}

params: {
  "type": "bbox",
  "min": [
    0,
    0,
    0
  ],
  "max": [
    50,
    30,
    30
  ],
  "tolerance_mm": 0.1
}

details: {
  "actual_max": [
    50,
    30,
    30
  ],
  "actual_min": [
    0,
    0,
    0
  ],
  "deviation_max": [
    0,
    0,
    0
  ],
  "deviation_min": [
    0,
    0,
    0
  ],
  "max_abs_deviation_mm": 0,
  "tolerance_mm": 0.1
}

params: {
  "type": "mass_props",
  "volume_mm3": 8962.92,
  "tolerance_pct": 0.5
}

details: {
  "volume": {
    "actual_mm3": 8963.927721672726,
    "deviation_pct": 0.011243229580604232,
    "pass": true,
    "spec_mm3": 8962.92,
    "tolerance_pct": 0.5
  }
}

params: {
  "type": "hole_count",
  "diameter_mm": 5,
  "expected": 2,
  "diameter_tolerance_mm": 0.05
}

details: {
  "actual": 2,
  "diameter_mm": 5,
  "diameter_tolerance_mm": 0.05,
  "expected": 2,
  "found": [
    [
      10,
      15,
      5
    ],
    [
      35,
      15,
      5
    ]
  ]
}

params: {
  "type": "hole_positions",
  "diameter_mm": 5,
  "positions": [
    [
      10,
      15,
      0
    ],
    [
      35,
      15,
      0
    ]
  ],
  "tolerance_mm": 0.1
}

details: {
  "diameter_mm": 5,
  "per_expected": [
    {
      "distance_mm": 0,
      "matched_hole": [
        10,
        15
      ],
      "pass": true,
      "spec_xy": [
        10,
        15
      ]
    },
    {
      "distance_mm": 0,
      "matched_hole": [
        35,
        15
      ],
      "pass": true,
      "spec_xy": [
        35,
        15
      ]
    }
  ],
  "tolerance_mm": 0.1,
  "unmatched_extras": []
}

params: {
  "type": "step_roundtrip",
  "tolerance_pct": 0.1
}

details: {
  "per_solid": [
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          50,
          30,
          30
        ],
        "original_min": [
          0,
          0,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          50,
          30,
          30
        ],
        "roundtripped_min": [
          0,
          0,
          0
        ],
        "tolerance_mm": 0.06557438524302
      },
      "index": 0,
      "pass": true,
      "volume": {
        "deviation_pct": 0,
        "original_mm3": 8963.927721672726,
        "pass": true,
        "roundtripped_mm3": 8963.927721672726
      }
    }
  ],
  "tolerance_pct": 0.1
}

Tool calls

{
  "model": "gpt-5-mini",
  "max_tokens": 8000,
  "system_chars": 1674,
  "user_chars": 470
}

What the model built

isometric render via vcad-render · the model's actual .vcad output, faceted at 28 segments per cylinder · download 20260428T213558Z-f74c.vcad

.vcad source

{
  "version": "0.1",
  "nodes": {
    "1": {
      "id": 1,
      "name": "base_plate",
      "op": {
        "type": "Cube",
        "size": {
          "x": 50,
          "y": 30,
          "z": 4
        }
      }
    },
    "2": {
      "id": 2,
      "name": "vertical_wall",
      "op": {
        "type": "Translate",
        "child": 8,
        "offset": {
          "x": 46,
          "y": 0,
          "z": 4
        }
      }
    },
    "8": {
      "id": 8,
      "name": "vertical_wall_cube",
      "op": {
        "type": "Cube",
        "size": {
          "x": 4,
          "y": 30,
          "z": 26
        }
      }
    },
    "3": {
      "id": 3,
      "name": "bracket_union",
      "op": {
        "type": "Union",
        "left": 1,
        "right": 2
      }
    },
    "4": {
      "id": 4,
      "name": "hole_cyl_1",
      "op": {
        "type": "Translate",
        "child": 9,
        "offset": {
          "x": 10,
          "y": 15,
          "z": 0
        }
      }
    },
    "9": {
      "id": 9,
      "name": "hole_cylinder_1_primitive",
      "op": {
        "type": "Cylinder",
        "radius": 2.5,
        "height": 30,
        "segments": 32
      }
    },
    "5": {
      "id": 5,
      "name": "hole_cyl_2",
      "op": {
        "type": "Translate",
        "child": 10,
        "offset": {
          "x": 35,
          "y": 15,
          "z": 0
        }
      }
    },
    "10": {
      "id": 10,
      "name": "hole_cylinder_2_primitive",
      "op": {
        "type": "Cylinder",
        "radius": 2.5,
        "height": 30,
        "segments": 32
      }
    },
    "6": {
      "id": 6,
      "name": "holes_union",
      "op": {
        "type": "Union",
        "left": 4,
        "right": 5
      }
    },
    "7": {
      "id": 7,
      "name": "final_bracket",
      "op": {
        "type": "Difference",
        "left": 3,
        "right": 6
      }
    }
  },
  "materials": {},
  "part_materials": {},
  "roots": [
    {
      "root": 7,
      "material": "default"
    }
  ]
}

generated 2026-06-19T01:47:55.636Z · static site, regenerate with npm run build -w @mecheval/leaderboard