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← mecheval. / run / a2-flanged-cap-01 / claude-direct-claude-opus-4-7 / 20260428T142511Z-8f59

run 20260428T142511Z-8f59

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

Summary

status	PASS
score	1.00 (7/7)
submission	self-run
model	claude-direct-claude-opus-4-7 (anthropic)
started	2026-04-28T14:25:11.662Z
ended	2026-04-28T14:25:22.220Z
tokens	911 in · 1,189 out · 2,100 total
wallclock	10.4s
tool calls	1
task hash	`a438f2e4d00d25d7…`
vcad hash	`57314b4162584ea9…`

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

valid_solid

pass

params + details

params: {
  "type": "valid_solid"
}

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

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": [
      6.392003061692436e-16,
      1.3420757386235459e-15,
      4.000000000000056
    ],
    "bbox_diagonal_mm": 85.22910301065006,
    "deviation": [
      6.392003061692436e-16,
      1.3420757386235459e-15,
      5.595524044110789e-14
    ],
    "max_abs_deviation_mm": 5.595524044110789e-14,
    "pass": true,
    "spec": [
      0,
      0,
      4
    ],
    "tolerance_mm": 0.4261455150532503
  },
  "volume": {
    "actual_mm3": 11605.229361969885,
    "deviation_pct": 0.1605369461524031,
    "pass": true,
    "spec_mm3": 11623.89,
    "tolerance_pct": 0.5
  }
}

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
    ]
  ]
}

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
    ],
    [
      -12.5,
      21.65063509461097,
      5
    ],
    [
      -25,
      0,
      5
    ],
    [
      -12.5,
      -21.65063509461097,
      5
    ],
    [
      12.5,
      -21.65063509461097,
      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": [
        -12.5,
        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": [
        -12.5,
        -21.65063509461097
      ],
      "pass": true,
      "spec_xy": [
        -12.5,
        -21.65
      ]
    },
    {
      "distance_mm": 0.0006350946109705546,
      "matched_hole": [
        12.5,
        -21.65063509461097
      ],
      "pass": true,
      "spec_xy": [
        12.5,
        -21.65
      ]
    }
  ],
  "tolerance_mm": 0.15,
  "unmatched_extras": []
}

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": 0.6333574793734406,
        "original_mm3": 11605.22936196987,
        "pass": true,
        "roundtripped_mm3": 11531.726773807392
      }
    }
  ],
  "tolerance_pct": 1
}

Tool calls

anthropic.messages.create

10419ms

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 20260428T142511Z-8f59.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":8,"segments":64} },
    "3": { "id": 3, "name": "body", "op": {"type":"Difference","left":1,"right":2} },

    "10": { "id": 10, "name": "bolt0", "op": {"type":"Cylinder","radius":2.5,"height":8,"segments":32} },
    "11": { "id": 11, "name": "bolt0_t", "op": {"type":"Translate","child":10,"offset":{"x":25,"y":0,"z":0}} },

    "20": { "id": 20, "name": "bolt1", "op": {"type":"Cylinder","radius":2.5,"height":8,"segments":32} },
    "21": { "id": 21, "name": "bolt1_t", "op": {"type":"Translate","child":20,"offset":{"x":12.5,"y":21.650635094610966,"z":0}} },

    "30": { "id": 30, "name": "bolt2", "op": {"type":"Cylinder","radius":2.5,"height":8,"segments":32} },
    "31": { "id": 31, "name": "bolt2_t", "op": {"type":"Translate","child":30,"offset":{"x":-12.5,"y":21.650635094610966,"z":0}} },

    "40": { "id": 40, "name": "bolt3", "op": {"type":"Cylinder","radius":2.5,"height":8,"segments":32} },
    "41": { "id": 41, "name": "bolt3_t", "op": {"type":"Translate","child":40,"offset":{"x":-25,"y":0,"z":0}} },

    "50": { "id": 50, "name": "bolt4", "op": {"type":"Cylinder","radius":2.5,"height":8,"segments":32} },
    "51": { "id": 51, "name": "bolt4_t", "op": {"type":"Translate","child":50,"offset":{"x":-12.5,"y":-21.650635094610966,"z":0}} },

    "60": { "id": 60, "name": "bolt5", "op": {"type":"Cylinder","radius":2.5,"height":8,"segments":32} },
    "61": { "id": 61, "name": "bolt5_t", "op": {"type":"Translate","child":60,"offset":{"x":12.5,"y":-21.650635094610966,"z":0}} },

    "100": { "id": 100, "name": "u01", "op": {"type":"Union","left":11,"right":21} },
    "101": { "id": 101, "name": "u012", "op": {"type":"Union","left":100,"right":31} },
    "102": { "id": 102, "name": "u0123", "op": {"type":"Union","left":101,"right":41} },
    "103": { "id": 103, "name": "u01234", "op": {"type":"Union","left":102,"right":51} },
    "104": { "id": 104, "name": "all_bolts", "op": {"type":"Union","left":103,"right":61} },

    "200": { "id": 200, "name": "final", "op": {"type":"Difference","left":3,"right":104} }
  },
  "materials": {},
  "part_materials": {},
  "roots": [{ "root": 200, "material": "default" }]
}

drawing mecheval.	sheet RUN · 20260428T142511Z-8f59	scale PASS
date 2026-04-29	drawn by muni	project mecheval

generated 2026-04-29T00:03:43.126Z · static site, regenerate with npm run build -w @mecheval/leaderboard