run 20260428T231851Z-fef7

Summary

Prompt

Make an octagonal prism flange. The outer cross-section is a regular octagon with flat-to-flat distance 40mm (apothem 20mm), oriented so two flats are parallel to the X axis (the top and bottom of the octagon). Height 8mm along Z, base on the XY plane (z = 0 to z = 8). Drill eight through-holes of diameter 5mm, axes parallel to Z, on a bolt circle of radius 15mm centered on the Z axis. The first bolt hole is on the +X axis, and the rest are evenly spaced every 45 degrees. Output a single solid.

Checks

params: {
  "type": "valid_solid"
}

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

params: {
  "type": "bbox",
  "min": [
    -21.65,
    -20,
    0
  ],
  "max": [
    21.65,
    20,
    8
  ],
  "tolerance_mm": 0.3
}

details: {
  "actual_max": [
    20,
    20,
    8
  ],
  "actual_min": [
    -20,
    -20,
    0
  ],
  "deviation_max": [
    -1.6499999999999986,
    0,
    0
  ],
  "deviation_min": [
    1.6499999999999986,
    0,
    0
  ],
  "max_abs_deviation_mm": 1.6499999999999986,
  "tolerance_mm": 0.3
}

params: {
  "type": "mass_props",
  "volume_mm3": 9347.81,
  "tolerance_pct": 1.5
}

details: {
  "volume": {
    "actual_mm3": 4783.200591810538,
    "deviation_pct": 48.83078933129216,
    "pass": false,
    "spec_mm3": 9347.81,
    "tolerance_pct": 1.5
  }
}

params: {
  "type": "hole_count",
  "diameter_mm": 5,
  "expected": 8,
  "diameter_tolerance_mm": 0.05
}

details: {
  "actual": 8,
  "diameter_mm": 5,
  "diameter_tolerance_mm": 0.05,
  "expected": 8,
  "found": [
    [
      -10.6066017,
      -10.6066017,
      5
    ],
    [
      15,
      0,
      5
    ],
    [
      0,
      15,
      5
    ],
    [
      -10.6066017,
      10.6066017,
      5
    ],
    [
      10.6066017,
      -10.6066017,
      5
    ],
    [
      -15,
      0,
      5
    ],
    [
      0,
      -15,
      5
    ],
    [
      10.6066017,
      10.6066017,
      5
    ]
  ]
}

params: {
  "type": "hole_positions",
  "diameter_mm": 5,
  "positions": [
    [
      15,
      0,
      0
    ],
    [
      10.61,
      10.61,
      0
    ],
    [
      0,
      15,
      0
    ],
    [
      -10.61,
      10.61,
      0
    ],
    [
      -15,
      0,
      0
    ],
    [
      -10.61,
      -10.61,
      0
    ],
    [
      0,
      -15,
      0
    ],
    [
      10.61,
      -10.61,
      0
    ]
  ],
  "tolerance_mm": 0.2
}

details: {
  "diameter_mm": 5,
  "per_expected": [
    {
      "distance_mm": 0,
      "matched_hole": [
        15,
        0
      ],
      "pass": true,
      "spec_xy": [
        15,
        0
      ]
    },
    {
      "distance_mm": 0.004805921949010869,
      "matched_hole": [
        10.6066017,
        10.6066017
      ],
      "pass": true,
      "spec_xy": [
        10.61,
        10.61
      ]
    },
    {
      "distance_mm": 0,
      "matched_hole": [
        0,
        15
      ],
      "pass": true,
      "spec_xy": [
        0,
        15
      ]
    },
    {
      "distance_mm": 0.004805921949010869,
      "matched_hole": [
        -10.6066017,
        10.6066017
      ],
      "pass": true,
      "spec_xy": [
        -10.61,
        10.61
      ]
    },
    {
      "distance_mm": 0,
      "matched_hole": [
        -15,
        0
      ],
      "pass": true,
      "spec_xy": [
        -15,
        0
      ]
    },
    {
      "distance_mm": 0.004805921949010869,
      "matched_hole": [
        -10.6066017,
        -10.6066017
      ],
      "pass": true,
      "spec_xy": [
        -10.61,
        -10.61
      ]
    },
    {
      "distance_mm": 0,
      "matched_hole": [
        0,
        -15
      ],
      "pass": true,
      "spec_xy": [
        0,
        -15
      ]
    },
    {
      "distance_mm": 0.004805921949010869,
      "matched_hole": [
        10.6066017,
        -10.6066017
      ],
      "pass": true,
      "spec_xy": [
        10.61,
        -10.61
      ]
    }
  ],
  "tolerance_mm": 0.2,
  "unmatched_extras": []
}

params: {
  "type": "step_roundtrip",
  "tolerance_pct": 1.5
}

details: {
  "per_solid": [
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          20,
          20,
          8
        ],
        "original_min": [
          -20,
          -20,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          20,
          20,
          8
        ],
        "roundtripped_min": [
          -20,
          -20,
          0
        ],
        "tolerance_mm": 0.856971411425142
      },
      "index": 0,
      "pass": true,
      "volume": {
        "deviation_pct": 7.605741672888246e-14,
        "original_mm3": 4783.200591810538,
        "pass": true,
        "roundtripped_mm3": 4783.2005918105415
      }
    }
  ],
  "tolerance_pct": 1.5
}

Tool calls

{
  "model": "claude-opus-4-7",
  "max_tokens": 8000,
  "system_chars": 1674,
  "user_chars": 564
}

What the model built

isometric render via vcad-render · the model's actual .vcad output, faceted at 28 segments per cylinder · download 20260428T231851Z-fef7.vcad

.vcad source

{
  "version": "0.1",
  "nodes": {
    "1": {"id": 1, "name": "slab", "op": {"type": "Cube", "size": {"x": 60, "y": 60, "z": 8}}},
    "2": {"id": 2, "name": "slab_centered", "op": {"type": "Translate", "child": 1, "offset": {"x": -30, "y": -30, "z": 0}}},

    "10": {"id": 10, "name": "cut_top", "op": {"type": "Cube", "size": {"x": 80, "y": 40, "z": 20}}},
    "11": {"id": 11, "name": "cut_top_pos", "op": {"type": "Translate", "child": 10, "offset": {"x": -40, "y": 20, "z": -5}}},
    "12": {"id": 12, "name": "oct1", "op": {"type": "Difference", "left": 2, "right": 11}},

    "13": {"id": 13, "name": "cut_bot", "op": {"type": "Cube", "size": {"x": 80, "y": 40, "z": 20}}},
    "14": {"id": 14, "name": "cut_bot_pos", "op": {"type": "Translate", "child": 13, "offset": {"x": -40, "y": -60, "z": -5}}},
    "15": {"id": 15, "name": "oct2", "op": {"type": "Difference", "left": 12, "right": 14}},

    "16": {"id": 16, "name": "cut_right", "op": {"type": "Cube", "size": {"x": 40, "y": 80, "z": 20}}},
    "17": {"id": 17, "name": "cut_right_pos", "op": {"type": "Translate", "child": 16, "offset": {"x": 20, "y": -40, "z": -5}}},
    "18": {"id": 18, "name": "oct3", "op": {"type": "Difference", "left": 15, "right": 17}},

    "19": {"id": 19, "name": "cut_left", "op": {"type": "Cube", "size": {"x": 40, "y": 80, "z": 20}}},
    "20": {"id": 20, "name": "cut_left_pos", "op": {"type": "Translate", "child": 19, "offset": {"x": -60, "y": -40, "z": -5}}},
    "21": {"id": 21, "name": "oct4", "op": {"type": "Difference", "left": 18, "right": 20}},

    "30": {"id": 30, "name": "cut_d1", "op": {"type": "Cube", "size": {"x": 80, "y": 40, "z": 20}}},
    "31": {"id": 31, "name": "cut_d1_t", "op": {"type": "Translate", "child": 30, "offset": {"x": -40, "y": 20, "z": -5}}},
    "32": {"id": 32, "name": "cut_d1_r", "op": {"type": "Rotate", "child": 31, "angles": {"x": 0, "y": 0, "z": 45}}},
    "33": {"id": 33, "name": "oct5", "op": {"type": "Difference", "left": 21, "right": 32}},

    "34": {"id": 34, "name": "cut_d2", "op": {"type": "Cube", "size": {"x": 80, "y": 40, "z": 20}}},
    "35": {"id": 35, "name": "cut_d2_t", "op": {"type": "Translate", "child": 34, "offset": {"x": -40, "y": -60, "z": -5}}},
    "36": {"id": 36, "name": "cut_d2_r", "op": {"type": "Rotate", "child": 35, "angles": {"x": 0, "y": 0, "z": 45}}},
    "37": {"id": 37, "name": "oct6", "op": {"type": "Difference", "left": 33, "right": 36}},

    "38": {"id": 38, "name": "cut_d3", "op": {"type": "Cube", "size": {"x": 40, "y": 80, "z": 20}}},
    "39": {"id": 39, "name": "cut_d3_t", "op": {"type": "Translate", "child": 38, "offset": {"x": 20, "y": -40, "z": -5}}},
    "40": {"id": 40, "name": "cut_d3_r", "op": {"type": "Rotate", "child": 39, "angles": {"x": 0, "y": 0, "z": 45}}},
    "41": {"id": 41, "name": "oct7", "op": {"type": "Difference", "left": 37, "right": 40}},

    "42": {"id": 42, "name": "cut_d4", "op": {"type": "Cube", "size": {"x": 40, "y": 80, "z": 20}}},
    "43": {"id": 43, "name": "cut_d4_t", "op": {"type": "Translate", "child": 42, "offset": {"x": -60, "y": -40, "z": -5}}},
    "44": {"id": 44, "name": "cut_d4_r", "op": {"type": "Rotate", "child": 43, "angles": {"x": 0, "y": 0, "z": 45}}},
    "45": {"id": 45, "name": "octagon", "op": {"type": "Difference", "left": 41, "right": 44}},

    "100": {"id": 100, "name": "hole0", "op": {"type": "Cylinder", "radius": 2.5, "height": 10, "segments": 32}},
    "101": {"id": 101, "name": "h0", "op": {"type": "Translate", "child": 100, "offset": {"x": 15, "y": 0, "z": -1}}},

    "102": {"id": 102, "name": "hole1", "op": {"type": "Cylinder", "radius": 2.5, "height": 10, "segments": 32}},
    "103": {"id": 103, "name": "h1", "op": {"type": "Translate", "child": 102, "offset": {"x": 10.6066017, "y": 10.6066017, "z": -1}}},

    "104": {"id": 104, "name": "hole2", "op": {"type": "Cylinder", "radius": 2.5, "height": 10, "segments": 32}},
    "105": {"id": 105, "name": "h2", "op": {"type": "Translate", "child": 104, "offset": {"x": 0, "y": 15, "z": -1}}},

    "106": {"id": 106, "name": "hole3", "op": {"type": "Cylinder", "radius": 2.5, "height": 10, "segments": 32}},
    "107": {"id": 107, "name": "h3", "op": {"type": "Translate", "child": 106, "offset": {"x": -10.6066017, "y": 10.6066017, "z": -1}}},

    "108": {"id": 108, "name": "hole4", "op": {"type": "Cylinder", "radius": 2.5, "height": 10, "segments": 32}},
    "109": {"id": 109, "name": "h4", "op": {"type": "Translate", "child": 108, "offset": {"x": -15, "y": 0, "z": -1}}},

    "110": {"id": 110, "name": "hole5", "op": {"type": "Cylinder", "radius": 2.5, "height": 10, "segments": 32}},
    "111": {"id": 111, "name": "h5", "op": {"type": "Translate", "child": 110, "offset": {"x": -10.6066017, "y": -10.6066017, "z": -1}}},

    "112": {"id": 112, "name": "hole6", "op": {"type": "Cylinder", "radius": 2.5, "height": 10, "segments": 32}},
    "113": {"id": 113, "name": "h6", "op": {"type": "Translate", "child": 112, "offset": {"x": 0, "y": -15, "z": -1}}},

    "114": {"id": 114, "name": "hole7", "op": {"type": "Cylinder", "radius": 2.5, "height": 10, "segments": 32}},
    "115": {"id": 115, "name": "h7", "op": {"type": "Translate", "child": 114, "offset": {"x": 10.6066017, "y": -10.6066017, "z": -1}}},

    "200": {"id": 200, "name": "u1", "op": {"type": "Union", "left": 101, "right": 103}},
    "201": {"id": 201, "name": "u2", "op": {"type": "Union", "left": 200, "right": 105}},
    "202": {"id": 202, "name": "u3", "op": {"type": "Union", "left": 201, "right": 107}},
    "203": {"id": 203, "name": "u4", "op": {"type": "Union", "left": 202, "right": 109}},
    "204": {"id": 204, "name": "u5", "op": {"type": "Union", "left": 203, "right": 111}},
    "205": {"id": 205, "name": "u6", "op": {"type": "Union", "left": 204, "right": 113}},
    "206": {"id": 206, "name": "all_holes", "op": {"type": "Union", "left": 205, "right": 115}},

    "300": {"id": 300, "name": "flange", "op": {"type": "Difference", "left": 45, "right": 206}}
  },
  "materials": {},
  "part_materials": {},
  "roots": [{"root": 300, "material": "default"}]
}

generated 2026-06-19T01:47:55.882Z · static site, regenerate with npm run build -w @mecheval/leaderboard