← mecheval / run / a3-octagonal-flange-01 / claude-direct-claude-opus-4-7 / 20260428T231836Z-5683

run 20260428T231836Z-5683

a3-octagonal-flange-01 · claude-direct-claude-opus-4-7

Summary

statusfail
score0.67 (4/6)
submissionself-run
modelclaude-direct-claude-opus-4-7 (anthropic)
started2026-04-28T23:18:36.997Z
ended2026-04-28T23:18:51.781Z
tokens972 in · 1,815 out · 2,787 total
wallclock14.3s
tool calls1
task hash91605c57469285ce…
vcad hash9c4eef1c8c8c8220…

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

0
valid_solid
pass
params + details 
params: {
  "type": "valid_solid"
}

details: {
  "root_count": 1,
  "solids_produced": 1
}
1
bbox
fail
X off by +8.35mm
params + details 
params: {
  "type": "bbox",
  "min": [
    -21.65,
    -20,
    0
  ],
  "max": [
    21.65,
    20,
    8
  ],
  "tolerance_mm": 0.3
}

details: {
  "actual_max": [
    30,
    20,
    8
  ],
  "actual_min": [
    -30,
    -20,
    0
  ],
  "deviation_max": [
    8.350000000000001,
    0,
    0
  ],
  "deviation_min": [
    -8.350000000000001,
    0,
    0
  ],
  "max_abs_deviation_mm": 8.350000000000001,
  "tolerance_mm": 0.3
}
2
mass_props
fail
volume off by 46.8%
params + details 
params: {
  "type": "mass_props",
  "volume_mm3": 9347.81,
  "tolerance_pct": 1.5
}

details: {
  "volume": {
    "actual_mm3": 13719.964297302198,
    "deviation_pct": 46.77196367172844,
    "pass": false,
    "spec_mm3": 9347.81,
    "tolerance_pct": 1.5
  }
}
3
hole_count
pass
params + details 
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": [
    [
      15,
      0,
      5
    ],
    [
      10.606601717798211,
      10.606601717798211,
      5
    ],
    [
      0,
      15,
      5
    ],
    [
      -10.606601717798211,
      10.606601717798211,
      5
    ],
    [
      -15,
      0,
      5
    ],
    [
      -10.606601717798211,
      -10.606601717798211,
      5
    ],
    [
      0,
      -15,
      5
    ],
    [
      10.606601717798211,
      -10.606601717798211,
      5
    ]
  ]
}
4
hole_positions
pass
params + details 
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": 0.004805896778539621,
      "matched_hole": [
        10.606601717798211,
        10.606601717798211
      ],
      "pass": true,
      "spec_xy": [
        10.61,
        10.61
      ]
    },
    {
      "distance_mm": 0,
      "matched_hole": [
        0,
        15
      ],
      "pass": true,
      "spec_xy": [
        0,
        15
      ]
    },
    {
      "distance_mm": 0.004805896778539621,
      "matched_hole": [
        -10.606601717798211,
        10.606601717798211
      ],
      "pass": true,
      "spec_xy": [
        -10.61,
        10.61
      ]
    },
    {
      "distance_mm": 0,
      "matched_hole": [
        -15,
        0
      ],
      "pass": true,
      "spec_xy": [
        -15,
        0
      ]
    },
    {
      "distance_mm": 0.004805896778539621,
      "matched_hole": [
        -10.606601717798211,
        -10.606601717798211
      ],
      "pass": true,
      "spec_xy": [
        -10.61,
        -10.61
      ]
    },
    {
      "distance_mm": 0,
      "matched_hole": [
        0,
        -15
      ],
      "pass": true,
      "spec_xy": [
        0,
        -15
      ]
    },
    {
      "distance_mm": 0.004805896778539621,
      "matched_hole": [
        10.606601717798211,
        -10.606601717798211
      ],
      "pass": true,
      "spec_xy": [
        10.61,
        -10.61
      ]
    }
  ],
  "tolerance_mm": 0.2,
  "unmatched_extras": []
}
5
step_roundtrip
pass
params + details 
params: {
  "type": "step_roundtrip",
  "tolerance_pct": 1.5
}

details: {
  "per_solid": [
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          30,
          20,
          8
        ],
        "original_min": [
          -30,
          -20,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          30,
          20,
          8
        ],
        "roundtripped_min": [
          -30,
          -20,
          0
        ],
        "tolerance_mm": 1.0883014288330233
      },
      "index": 0,
      "pass": true,
      "volume": {
        "deviation_pct": 0,
        "original_mm3": 13719.964297302198,
        "pass": true,
        "roundtripped_mm3": 13719.964297302198
      }
    }
  ],
  "tolerance_pct": 1.5
}

Tool calls

0
anthropic.messages.create
ok
14290ms
args
{
  "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 20260428T231836Z-5683.vcad

.vcad source

{
  "version": "0.1",
  "nodes": {
    "1": {"id": 1, "name": "wedge1", "op": {"type": "Cube", "size": {"x": 60, "y": 40, "z": 8}}},
    "2": {"id": 2, "name": "wedge1_centered", "op": {"type": "Translate", "child": 1, "offset": {"x": -30, "y": -20, "z": 0}}},
    "3": {"id": 3, "name": "wedge2_base", "op": {"type": "Cube", "size": {"x": 60, "y": 40, "z": 8}}},
    "4": {"id": 4, "name": "wedge2_centered", "op": {"type": "Translate", "child": 3, "offset": {"x": -30, "y": -20, "z": 0}}},
    "5": {"id": 5, "name": "wedge2_rotated", "op": {"type": "Rotate", "child": 4, "angles": {"x": 0, "y": 0, "z": 45}}},
    "6": {"id": 6, "name": "octagon", "op": {"type": "Intersection", "left": 2, "right": 5}},

    "10": {"id": 10, "name": "hole0", "op": {"type": "Cylinder", "radius": 2.5, "height": 10, "segments": 32}},
    "11": {"id": 11, "name": "hole0_t", "op": {"type": "Translate", "child": 10, "offset": {"x": 15, "y": 0, "z": -1}}},

    "12": {"id": 12, "name": "hole1", "op": {"type": "Cylinder", "radius": 2.5, "height": 10, "segments": 32}},
    "13": {"id": 13, "name": "hole1_t", "op": {"type": "Translate", "child": 12, "offset": {"x": 10.606601717798213, "y": 10.606601717798213, "z": -1}}},

    "14": {"id": 14, "name": "hole2", "op": {"type": "Cylinder", "radius": 2.5, "height": 10, "segments": 32}},
    "15": {"id": 15, "name": "hole2_t", "op": {"type": "Translate", "child": 14, "offset": {"x": 0, "y": 15, "z": -1}}},

    "16": {"id": 16, "name": "hole3", "op": {"type": "Cylinder", "radius": 2.5, "height": 10, "segments": 32}},
    "17": {"id": 17, "name": "hole3_t", "op": {"type": "Translate", "child": 16, "offset": {"x": -10.606601717798213, "y": 10.606601717798213, "z": -1}}},

    "18": {"id": 18, "name": "hole4", "op": {"type": "Cylinder", "radius": 2.5, "height": 10, "segments": 32}},
    "19": {"id": 19, "name": "hole4_t", "op": {"type": "Translate", "child": 18, "offset": {"x": -15, "y": 0, "z": -1}}},

    "20": {"id": 20, "name": "hole5", "op": {"type": "Cylinder", "radius": 2.5, "height": 10, "segments": 32}},
    "21": {"id": 21, "name": "hole5_t", "op": {"type": "Translate", "child": 20, "offset": {"x": -10.606601717798213, "y": -10.606601717798213, "z": -1}}},

    "22": {"id": 22, "name": "hole6", "op": {"type": "Cylinder", "radius": 2.5, "height": 10, "segments": 32}},
    "23": {"id": 23, "name": "hole6_t", "op": {"type": "Translate", "child": 22, "offset": {"x": 0, "y": -15, "z": -1}}},

    "24": {"id": 24, "name": "hole7", "op": {"type": "Cylinder", "radius": 2.5, "height": 10, "segments": 32}},
    "25": {"id": 25, "name": "hole7_t", "op": {"type": "Translate", "child": 24, "offset": {"x": 10.606601717798213, "y": -10.606601717798213, "z": -1}}},

    "30": {"id": 30, "name": "u01", "op": {"type": "Union", "left": 11, "right": 13}},
    "31": {"id": 31, "name": "u012", "op": {"type": "Union", "left": 30, "right": 15}},
    "32": {"id": 32, "name": "u0123", "op": {"type": "Union", "left": 31, "right": 17}},
    "33": {"id": 33, "name": "u01234", "op": {"type": "Union", "left": 32, "right": 19}},
    "34": {"id": 34, "name": "u012345", "op": {"type": "Union", "left": 33, "right": 21}},
    "35": {"id": 35, "name": "u0123456", "op": {"type": "Union", "left": 34, "right": 23}},
    "36": {"id": 36, "name": "all_holes", "op": {"type": "Union", "left": 35, "right": 25}},

    "40": {"id": 40, "name": "flange", "op": {"type": "Difference", "left": 6, "right": 36}}
  },
  "materials": {},
  "part_materials": {},
  "roots": [{"root": 40, "material": "default"}]
}
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