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← mecheval. / run / a2-flanged-cap-01 / claude-direct-claude-opus-4-7 / 20260428T141650Z-bd80

run 20260428T141650Z-bd80

a2-flanged-cap-01 · claude-direct-claude-opus-4-7

Summary

statusPASS
score1.00 (7/7)
submissionself-run
modelclaude-direct-claude-opus-4-7 (anthropic)
started2026-04-28T14:16:50.137Z
ended2026-04-28T14:17:06.098Z
tokens911 in · 1,050 out · 1,961 total
wallclock15.8s
tool calls1
task hasha438f2e4d00d25d7…
vcad hash594fbf0426d6cafb…

Prompt

Make a circular flanged cap. Outer cylinder: outside diameter 60mm, height 8mm, axis along Z, base on the XY plane (z = 0 to z = 8). Concentric central through-hole of diameter 40mm, axis along Z. Six bolt holes of diameter 5mm on a 50mm bolt circle (radius 25mm from the axis), evenly spaced starting at 0 degrees, all parallel to Z and going fully through. 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": [
    -30,
    -30,
    0
  ],
  "max": [
    30,
    30,
    8
  ],
  "tolerance_mm": 0.1
}

details: {
  "actual_max": [
    30,
    30,
    8
  ],
  "actual_min": [
    -30,
    -30,
    0
  ],
  "deviation_max": [
    0,
    0,
    0
  ],
  "deviation_min": [
    0,
    0,
    0
  ],
  "max_abs_deviation_mm": 0,
  "tolerance_mm": 0.1
}
2
mass_props
pass
params + details 
params: {
  "type": "mass_props",
  "volume_mm3": 11623.89,
  "center_of_mass": [
    0,
    0,
    4
  ],
  "tolerance_pct": 0.5
}

details: {
  "center_of_mass": {
    "actual": [
      2.2123024645193486e-16,
      1.7600457983408546e-15,
      4.000000000000064
    ],
    "bbox_diagonal_mm": 85.22910301065006,
    "deviation": [
      2.2123024645193486e-16,
      1.7600457983408546e-15,
      6.394884621840902e-14
    ],
    "max_abs_deviation_mm": 6.394884621840902e-14,
    "pass": true,
    "spec": [
      0,
      0,
      4
    ],
    "tolerance_mm": 0.4261455150532503
  },
  "volume": {
    "actual_mm3": 11605.229361969876,
    "deviation_pct": 0.16053694615248135,
    "pass": true,
    "spec_mm3": 11623.89,
    "tolerance_pct": 0.5
  }
}
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_count
pass
params + details 
params: {
  "type": "hole_count",
  "diameter_mm": 5,
  "expected": 6,
  "diameter_tolerance_mm": 0.05
}

details: {
  "actual": 6,
  "diameter_mm": 5,
  "diameter_tolerance_mm": 0.05,
  "expected": 6,
  "found": [
    [
      25,
      0,
      5
    ],
    [
      12.5,
      21.65063509461097,
      5
    ],
    [
      -12.499999999999998,
      21.65063509461097,
      5
    ],
    [
      -25,
      0,
      5
    ],
    [
      -12.500000000000004,
      -21.65063509461097,
      5
    ],
    [
      12.499999999999991,
      -21.65063509461097,
      5
    ]
  ]
}
5
hole_positions
pass
params + details 
params: {
  "type": "hole_positions",
  "diameter_mm": 5,
  "positions": [
    [
      25,
      0,
      0
    ],
    [
      12.5,
      21.65,
      0
    ],
    [
      -12.5,
      21.65,
      0
    ],
    [
      -25,
      0,
      0
    ],
    [
      -12.5,
      -21.65,
      0
    ],
    [
      12.5,
      -21.65,
      0
    ]
  ],
  "tolerance_mm": 0.15
}

details: {
  "diameter_mm": 5,
  "per_expected": [
    {
      "distance_mm": 0,
      "matched_hole": [
        25,
        0
      ],
      "pass": true,
      "spec_xy": [
        25,
        0
      ]
    },
    {
      "distance_mm": 0.0006350946109705546,
      "matched_hole": [
        12.5,
        21.65063509461097
      ],
      "pass": true,
      "spec_xy": [
        12.5,
        21.65
      ]
    },
    {
      "distance_mm": 0.0006350946109705546,
      "matched_hole": [
        -12.499999999999998,
        21.65063509461097
      ],
      "pass": true,
      "spec_xy": [
        -12.5,
        21.65
      ]
    },
    {
      "distance_mm": 0,
      "matched_hole": [
        -25,
        0
      ],
      "pass": true,
      "spec_xy": [
        -25,
        0
      ]
    },
    {
      "distance_mm": 0.0006350946109705546,
      "matched_hole": [
        -12.500000000000004,
        -21.65063509461097
      ],
      "pass": true,
      "spec_xy": [
        -12.5,
        -21.65
      ]
    },
    {
      "distance_mm": 0.0006350946109705546,
      "matched_hole": [
        12.499999999999991,
        -21.65063509461097
      ],
      "pass": true,
      "spec_xy": [
        12.5,
        -21.65
      ]
    }
  ],
  "tolerance_mm": 0.15,
  "unmatched_extras": []
}
6
step_roundtrip
pass
params + details 
params: {
  "type": "step_roundtrip",
  "tolerance_pct": 1
}

details: {
  "per_solid": [
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          30,
          30,
          8
        ],
        "original_min": [
          -30,
          -30,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          30,
          30,
          8
        ],
        "roundtripped_min": [
          -30,
          -30,
          0
        ],
        "tolerance_mm": 0.8522910301065006
      },
      "index": 0,
      "pass": true,
      "volume": {
        "deviation_pct": 0.6333574793734557,
        "original_mm3": 11605.229361969881,
        "pass": true,
        "roundtripped_mm3": 11531.7267738074
      }
    }
  ],
  "tolerance_pct": 1
}

Tool calls

0
anthropic.messages.create
ok
15842ms
args
{
  "model": "claude-opus-4-7",
  "max_tokens": 8000,
  "system_chars": 1632,
  "user_chars": 441
}

What the model built

isometric render via vcad-render · the model's actual .vcad output, faceted at 28 segments per cylinder · download 20260428T141650Z-bd80.vcad

.vcad source

{
  "version": "0.1",
  "nodes": {
    "1": {"id": 1, "name": "outer", "op": {"type": "Cylinder", "radius": 30, "height": 8, "segments": 64}},
    "2": {"id": 2, "name": "center_hole", "op": {"type": "Cylinder", "radius": 20, "height": 10, "segments": 64}},
    "3": {"id": 3, "name": "center_hole_pos", "op": {"type": "Translate", "child": 2, "offset": {"x": 0, "y": 0, "z": -1}}},
    "4": {"id": 4, "name": "body", "op": {"type": "Difference", "left": 1, "right": 3}},

    "10": {"id": 10, "name": "bolt", "op": {"type": "Cylinder", "radius": 2.5, "height": 10, "segments": 32}},

    "20": {"id": 20, "name": "bolt0", "op": {"type": "Translate", "child": 10, "offset": {"x": 25.0, "y": 0.0, "z": -1}}},
    "21": {"id": 21, "name": "bolt1", "op": {"type": "Translate", "child": 10, "offset": {"x": 12.5, "y": 21.650635094610966, "z": -1}}},
    "22": {"id": 22, "name": "bolt2", "op": {"type": "Translate", "child": 10, "offset": {"x": -12.499999999999998, "y": 21.650635094610966, "z": -1}}},
    "23": {"id": 23, "name": "bolt3", "op": {"type": "Translate", "child": 10, "offset": {"x": -25.0, "y": 0.0, "z": -1}}},
    "24": {"id": 24, "name": "bolt4", "op": {"type": "Translate", "child": 10, "offset": {"x": -12.500000000000004, "y": -21.650635094610966, "z": -1}}},
    "25": {"id": 25, "name": "bolt5", "op": {"type": "Translate", "child": 10, "offset": {"x": 12.499999999999991, "y": -21.65063509461097, "z": -1}}},

    "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
drawing
mecheval.		 sheet
RUN · 20260428T141650Z-bd80		 scale
PASS
date
2026-04-29		 drawn by
muni		 project
mecheval

generated 2026-04-29T00:03:43.125Z · static site, regenerate with npm run build -w @mecheval/leaderboard