← mecheval / run / a2-washer-01 / claude-mcp-claude-opus-4-7 / 20260611T180529Z-18d1

run 20260611T180529Z-18d1

a2-washer-01 · claude-mcp-claude-opus-4-7

Summary

status	fail
score	0.83 (5/6)
submission	self-run
model	claude-mcp-claude-opus-4-7 (anthropic)
started	2026-06-11T18:05:29.603Z
ended	2026-06-11T18:06:01.842Z
tokens	159,069 in · 1,350 out · 160,419 total
wallclock	32.2s
tool calls	11
task hash	`fea2171898f2fccb…`
vcad hash	`c64cbb261889cdd0…`

Prompt

Make a flat circular washer. Outer diameter 50mm, inner diameter 25mm, thickness 5mm. Axis along Z, base on the XY plane (z = 0 to z = 5). The bore is a single concentric through-hole. Output a single solid.

Checks

valid_solid

pass

params + details

params: {
  "type": "valid_solid"
}

details: {
  "root_count": 3,
  "solids_produced": 3
}

bbox

pass

params + details

params: {
  "type": "bbox",
  "min": [
    -25,
    -25,
    0
  ],
  "max": [
    25,
    25,
    5
  ],
  "tolerance_mm": 0.1
}

details: {
  "actual_max": [
    25,
    25,
    5
  ],
  "actual_min": [
    -25,
    -25,
    0
  ],
  "deviation_max": [
    0,
    0,
    0
  ],
  "deviation_min": [
    0,
    0,
    0
  ],
  "max_abs_deviation_mm": 0,
  "tolerance_mm": 0.1
}

mass_props

fail

volume off by 166.2%

params + details

params: {
  "type": "mass_props",
  "volume_mm3": 7363.11,
  "center_of_mass": [
    0,
    0,
    2.5
  ],
  "tolerance_pct": 1
}

details: {
  "center_of_mass": {
    "actual": [
      -1.498161424581164e-17,
      1.2359831752794605e-16,
      2.499999999999996
    ],
    "bbox_diagonal_mm": 70.88723439378913,
    "deviation": [
      -1.498161424581164e-17,
      1.2359831752794605e-16,
      -3.9968028886505635e-15
    ],
    "max_abs_deviation_mm": 3.9968028886505635e-15,
    "pass": true,
    "spec": [
      0,
      0,
      2.5
    ],
    "tolerance_mm": 0.7088723439378913
  },
  "volume": {
    "actual_mm3": 19603.428083833776,
    "deviation_pct": 166.23842484811144,
    "pass": false,
    "spec_mm3": 7363.11,
    "tolerance_pct": 1
  }
}

hole_count

pass

params + details

params: {
  "type": "hole_count",
  "diameter_mm": 25,
  "expected": 1,
  "diameter_tolerance_mm": 0.1
}

details: {
  "actual": 1,
  "diameter_mm": 25,
  "diameter_tolerance_mm": 0.1,
  "expected": 1,
  "found": [
    [
      0,
      0,
      25
    ]
  ]
}

hole_positions

pass

params + details

params: {
  "type": "hole_positions",
  "diameter_mm": 25,
  "positions": [
    [
      0,
      0,
      0
    ]
  ],
  "tolerance_mm": 0.15
}

details: {
  "diameter_mm": 25,
  "per_expected": [
    {
      "distance_mm": 0,
      "matched_hole": [
        0,
        0
      ],
      "pass": true,
      "spec_xy": [
        0,
        0
      ]
    }
  ],
  "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": [
          25,
          25,
          5
        ],
        "original_min": [
          -25,
          -25,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          25,
          25,
          5
        ],
        "roundtripped_min": [
          -25,
          -25,
          0
        ],
        "tolerance_mm": 0.7088723439378913
      },
      "index": 0,
      "pass": true,
      "volume": {
        "deviation_pct": 0.4815246536494272,
        "original_mm3": 9801.71404191688,
        "pass": true,
        "roundtripped_mm3": 9754.516372324833
      }
    },
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          12.5,
          12.5,
          5
        ],
        "original_min": [
          -12.5,
          -12.5,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          12.5,
          12.5,
          5
        ],
        "roundtripped_min": [
          -12.5,
          -12.5,
          0
        ],
        "tolerance_mm": 0.3570714214271425
      },
      "index": 1,
      "pass": true,
      "volume": {
        "deviation_pct": 0.4815246536494272,
        "original_mm3": 2450.42851047922,
        "pass": true,
        "roundtripped_mm3": 2438.6290930812083
      }
    },
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          25,
          25,
          5
        ],
        "original_min": [
          -25,
          -25,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          25,
          25,
          5
        ],
        "roundtripped_min": [
          -25,
          -25,
          0
        ],
        "tolerance_mm": 0.7088723439378913
      },
      "index": 2,
      "pass": true,
      "volume": {
        "deviation_pct": 0.5350273929438607,
        "original_mm3": 7351.285531437673,
        "pass": true,
        "roundtripped_mm3": 7311.954140110963
      }
    }
  ],
  "tolerance_pct": 1
}

Tool calls

open_document

2ms

args

{}

create

err

5ms

args

{
  "document_id": "doc_1781201129773_1",
  "type": "difference",
  "name": "Washer",
  "params": {
    "a": {
      "type": "cylinder",
      "params": {
        "radius": 25,
        "height": 5
      }
    },
    "b": {
      "type": "cylinder",
      "params": {
        "radius": 12.5,
        "height": 5
      }
    }
  }
}

create_cad_loon

13ms

args

{
  "source": "[difference [cylinder 12.5 5] [cylinder 25 5]]"
}

create

err

2ms

args

{
  "document_id": "doc_1781201129773_1",
  "type": "cylinder",
  "name": "Outer",
  "params": {
    "radius": 25,
    "height": 5
  }
}

create

4ms

args

{
  "document_id": "doc_1781201129773_1",
  "type": "cylinder",
  "name": "Outer",
  "params": {
    "radius": 25,
    "height": 5,
    "segments": 64
  }
}

create

2ms

args

{
  "document_id": "doc_1781201129773_1",
  "type": "cylinder",
  "name": "Bore",
  "params": {
    "radius": 12.5,
    "height": 5,
    "segments": 64
  }
}

read

3ms

args

{
  "document_id": "doc_1781201129773_1"
}

create

err

3ms

args

{
  "document_id": "doc_1781201129773_1",
  "type": "difference",
  "name": "Washer",
  "params": {
    "left": "1",
    "right": "2"
  }
}

create

5ms

args

{
  "document_id": "doc_1781201129773_1",
  "type": "difference",
  "name": "Washer",
  "params": {
    "left": 1,
    "right": 2
  }
}

render_view

113ms

args

{
  "document_id": "doc_1781201129773_1"
}

get_document

3ms

args

{
  "document_id": "doc_1781201129773_1"
}

What the model built

isometric render via vcad-render · the model's actual .vcad output, faceted at 28 segments per cylinder · download 20260611T180529Z-18d1.vcad

.vcad source

{
  "version": "0.1",
  "nodes": {
    "1": {
      "id": 1,
      "name": "Outer",
      "op": {
        "type": "Cylinder",
        "radius": 25,
        "height": 5,
        "segments": 64
      }
    },
    "2": {
      "id": 2,
      "name": "Bore",
      "op": {
        "type": "Cylinder",
        "radius": 12.5,
        "height": 5,
        "segments": 64
      }
    },
    "3": {
      "id": 3,
      "name": "Washer",
      "op": {
        "type": "Difference",
        "left": 1,
        "right": 2
      }
    }
  },
  "materials": {},
  "part_materials": {},
  "roots": [
    {
      "root": 1,
      "material": "default"
    },
    {
      "root": 2,
      "material": "default"
    },
    {
      "root": 3,
      "material": "default"
    }
  ]
}

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