← mecheval / run / a4-bolt-circle-flange-with-bore-01 / claude-direct-claude-opus-4-7 / 20260429T120546Z-2cc1

run 20260429T120546Z-2cc1

a4-bolt-circle-flange-with-bore-01 · claude-direct-claude-opus-4-7

Summary

statusPASS
score1.00 (8/8)
submissionself-run
modelclaude-direct-claude-opus-4-7 (anthropic)
started2026-04-29T12:05:46.069Z
ended2026-04-29T12:05:56.920Z
tokens997 in · 1,093 out · 2,090 total
wallclock9.4s
tool calls1
task hash33b12253990b5195…
vcad hashe08b59d2c35304ab…

Prompt

Make a round flange as a single solid. The outer body is a cylinder of diameter 100mm and thickness 12mm, with its bottom face on the XY plane (z = 0 to z = 12), centered on the Z axis. A central through-bore of diameter 40mm runs along the Z axis through the full thickness. Six bolt holes of diameter 8mm, axes parallel to Z, are arranged on a bolt circle of diameter 75mm (radius 37.5mm) centered on the Z axis, passing through the full thickness. The first bolt hole is on the +X axis, and the remaining five are evenly spaced every 60 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
pass
params + details 
params: {
  "type": "bbox",
  "min": [
    -50,
    -50,
    0
  ],
  "max": [
    50,
    50,
    12
  ],
  "tolerance_mm": 0.3
}

details: {
  "actual_max": [
    50,
    50,
    12
  ],
  "actual_min": [
    -50,
    -50,
    0
  ],
  "deviation_max": [
    0,
    0,
    0
  ],
  "deviation_min": [
    0,
    0,
    0
  ],
  "max_abs_deviation_mm": 0,
  "tolerance_mm": 0.3
}
2
mass_props
pass
params + details 
params: {
  "type": "mass_props",
  "volume_mm3": 75549.02,
  "tolerance_pct": 1.5
}

details: {
  "volume": {
    "actual_mm3": 75427.71803783807,
    "deviation_pct": 0.16056060311825546,
    "pass": true,
    "spec_mm3": 75549.02,
    "tolerance_pct": 1.5
  }
}
3
hole_count
pass
params + details 
params: {
  "type": "hole_count",
  "diameter_mm": 40,
  "expected": 1,
  "diameter_tolerance_mm": 0.1
}

details: {
  "actual": 1,
  "diameter_mm": 40,
  "diameter_tolerance_mm": 0.1,
  "expected": 1,
  "found": [
    [
      0,
      0,
      40
    ]
  ]
}
4
hole_positions
pass
params + details 
params: {
  "type": "hole_positions",
  "diameter_mm": 40,
  "positions": [
    [
      0,
      0,
      0
    ]
  ],
  "tolerance_mm": 0.2
}

details: {
  "diameter_mm": 40,
  "per_expected": [
    {
      "distance_mm": 0,
      "matched_hole": [
        0,
        0
      ],
      "pass": true,
      "spec_xy": [
        0,
        0
      ]
    }
  ],
  "tolerance_mm": 0.2,
  "unmatched_extras": []
}
5
hole_count
pass
params + details 
params: {
  "type": "hole_count",
  "diameter_mm": 8,
  "expected": 6,
  "diameter_tolerance_mm": 0.05
}

details: {
  "actual": 6,
  "diameter_mm": 8,
  "diameter_tolerance_mm": 0.05,
  "expected": 6,
  "found": [
    [
      37.5,
      0,
      8
    ],
    [
      18.75,
      32.4759526419,
      8
    ],
    [
      -18.75,
      32.4759526419,
      8
    ],
    [
      -37.5,
      0,
      8
    ],
    [
      -18.75,
      -32.4759526419,
      8
    ],
    [
      18.75,
      -32.4759526419,
      8
    ]
  ]
}
6
hole_positions
pass
params + details 
params: {
  "type": "hole_positions",
  "diameter_mm": 8,
  "positions": [
    [
      37.5,
      0,
      0
    ],
    [
      18.75,
      32.476,
      0
    ],
    [
      -18.75,
      32.476,
      0
    ],
    [
      -37.5,
      0,
      0
    ],
    [
      -18.75,
      -32.476,
      0
    ],
    [
      18.75,
      -32.476,
      0
    ]
  ],
  "tolerance_mm": 0.2
}

details: {
  "diameter_mm": 8,
  "per_expected": [
    {
      "distance_mm": 0,
      "matched_hole": [
        37.5,
        0
      ],
      "pass": true,
      "spec_xy": [
        37.5,
        0
      ]
    },
    {
      "distance_mm": 0.00004735809999800722,
      "matched_hole": [
        18.75,
        32.4759526419
      ],
      "pass": true,
      "spec_xy": [
        18.75,
        32.476
      ]
    },
    {
      "distance_mm": 0.00004735809999800722,
      "matched_hole": [
        -18.75,
        32.4759526419
      ],
      "pass": true,
      "spec_xy": [
        -18.75,
        32.476
      ]
    },
    {
      "distance_mm": 0,
      "matched_hole": [
        -37.5,
        0
      ],
      "pass": true,
      "spec_xy": [
        -37.5,
        0
      ]
    },
    {
      "distance_mm": 0.00004735809999800722,
      "matched_hole": [
        -18.75,
        -32.4759526419
      ],
      "pass": true,
      "spec_xy": [
        -18.75,
        -32.476
      ]
    },
    {
      "distance_mm": 0.00004735809999800722,
      "matched_hole": [
        18.75,
        -32.4759526419
      ],
      "pass": true,
      "spec_xy": [
        18.75,
        -32.476
      ]
    }
  ],
  "tolerance_mm": 0.2,
  "unmatched_extras": []
}
7
step_roundtrip
pass
params + details 
params: {
  "type": "step_roundtrip",
  "tolerance_pct": 1.5
}

details: {
  "per_solid": [
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          50,
          50,
          12
        ],
        "original_min": [
          -50,
          -50,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          50,
          50,
          12
        ],
        "roundtripped_min": [
          -50,
          -50,
          0
        ],
        "tolerance_mm": 2.1289433999052205
      },
      "index": 0,
      "pass": true,
      "volume": {
        "deviation_pct": 0.521250744673374,
        "original_mm3": 75427.71803783819,
        "pass": true,
        "roundtripped_mm3": 75034.55049587582
      }
    }
  ],
  "tolerance_pct": 1.5
}

Tool calls

0
anthropic.messages.create
ok
9406ms
args
{
  "model": "claude-opus-4-7",
  "max_tokens": 8000,
  "system_chars": 1674,
  "user_chars": 648
}

What the model built

isometric render via vcad-render · the model's actual .vcad output, faceted at 28 segments per cylinder · download 20260429T120546Z-2cc1.vcad

.vcad source

{
  "version": "0.1",
  "nodes": {
    "1": {"id": 1, "name": "outer", "op": {"type": "Cylinder", "radius": 50, "height": 12, "segments": 64}},
    "2": {"id": 2, "name": "bore", "op": {"type": "Cylinder", "radius": 20, "height": 14, "segments": 64}},
    "3": {"id": 3, "name": "bore_pos", "op": {"type": "Translate", "child": 2, "offset": {"x": 0, "y": 0, "z": -1}}},
    "4": {"id": 4, "name": "flange_bored", "op": {"type": "Difference", "left": 1, "right": 3}},

    "10": {"id": 10, "name": "bolt", "op": {"type": "Cylinder", "radius": 4, "height": 14, "segments": 32}},
    "11": {"id": 11, "name": "bolt_z", "op": {"type": "Translate", "child": 10, "offset": {"x": 0, "y": 0, "z": -1}}},

    "20": {"id": 20, "name": "bolt0", "op": {"type": "Translate", "child": 11, "offset": {"x": 37.5, "y": 0, "z": 0}}},
    "21": {"id": 21, "name": "bolt1", "op": {"type": "Translate", "child": 11, "offset": {"x": 18.75, "y": 32.4759526419, "z": 0}}},
    "22": {"id": 22, "name": "bolt2", "op": {"type": "Translate", "child": 11, "offset": {"x": -18.75, "y": 32.4759526419, "z": 0}}},
    "23": {"id": 23, "name": "bolt3", "op": {"type": "Translate", "child": 11, "offset": {"x": -37.5, "y": 0, "z": 0}}},
    "24": {"id": 24, "name": "bolt4", "op": {"type": "Translate", "child": 11, "offset": {"x": -18.75, "y": -32.4759526419, "z": 0}}},
    "25": {"id": 25, "name": "bolt5", "op": {"type": "Translate", "child": 11, "offset": {"x": 18.75, "y": -32.4759526419, "z": 0}}},

    "30": {"id": 30, "name": "u01", "op": {"type": "Union", "left": 20, "right": 21}},
    "31": {"id": 31, "name": "u012", "op": {"type": "Union", "left": 30, "right": 22}},
    "32": {"id": 32, "name": "u0123", "op": {"type": "Union", "left": 31, "right": 23}},
    "33": {"id": 33, "name": "u01234", "op": {"type": "Union", "left": 32, "right": 24}},
    "34": {"id": 34, "name": "all_bolts", "op": {"type": "Union", "left": 33, "right": 25}},

    "40": {"id": 40, "name": "final", "op": {"type": "Difference", "left": 4, "right": 34}}
  },
  "materials": {},
  "part_materials": {},
  "roots": [{"root": 40, "material": "default"}]
}
mecheval · an evaluation suite by Municipal Robotics
sibling project: vcad. · github

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