← mecheval / run / a2-flanged-cap-01 / claude-mcp-claude-opus-4-7 / 20260611T174139Z-2d08

run 20260611T174139Z-2d08

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

Summary

statusfail
score0.43 (3/7)
submissionself-run
modelclaude-mcp-claude-opus-4-7 (anthropic)
started2026-06-11T17:41:39.139Z
ended2026-06-11T17:43:45.793Z
tokens622,874 in · 7,125 out · 629,999 total
wallclock126.6s
tool calls36
task hasha438f2e4d00d25d7…
vcad hash65ca99a4b69e0acd…

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": 3,
  "solids_produced": 3
}
1
bbox
fail
Z off by +2.00mm
params + details 
params: {
  "type": "bbox",
  "min": [
    -30,
    -30,
    0
  ],
  "max": [
    30,
    30,
    8
  ],
  "tolerance_mm": 0.1
}

details: {
  "actual_max": [
    30,
    30,
    10
  ],
  "actual_min": [
    -30,
    -30,
    0
  ],
  "deviation_max": [
    0,
    0,
    2
  ],
  "deviation_min": [
    0,
    0,
    0
  ],
  "max_abs_deviation_mm": 2,
  "tolerance_mm": 0.1
}
2
mass_props
fail
volume off by 310.2%
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": [
      5.564054511990049e-17,
      8.853801742204169e-16,
      4.263157894712551
    ],
    "bbox_diagonal_mm": 85.44003745317531,
    "deviation": [
      5.564054511990049e-17,
      8.853801742204169e-16,
      0.2631578947125508
    ],
    "max_abs_deviation_mm": 0.2631578947125508,
    "pass": true,
    "spec": [
      0,
      0,
      4
    ],
    "tolerance_mm": 0.42720018726587655
  },
  "volume": {
    "actual_mm3": 47675.537226580345,
    "deviation_pct": 310.1513110204961,
    "pass": false,
    "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
fail
found 0/6 holes of ⌀5mm
params + details 
params: {
  "type": "hole_count",
  "diameter_mm": 5,
  "expected": 6,
  "diameter_tolerance_mm": 0.05
}

details: {
  "actual": 0,
  "diameter_mm": 5,
  "diameter_tolerance_mm": 0.05,
  "expected": 6,
  "found": []
}
5
hole_positions
fail
6/6 mispositioned
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": [
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        25,
        0
      ]
    },
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        12.5,
        21.65
      ]
    },
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        -12.5,
        21.65
      ]
    },
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        -25,
        0
      ]
    },
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        -12.5,
        -21.65
      ]
    },
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "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": 0.48152593655443887,
        "original_mm3": 22583.14921270654,
        "pass": true,
        "roundtripped_mm3": 22474.405491956568
      }
    },
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          20,
          20,
          10
        ],
        "original_min": [
          -20,
          -20,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          20,
          20,
          10
        ],
        "roundtripped_min": [
          -20,
          -20,
          0
        ],
        "tolerance_mm": 0.5744562646538028
      },
      "index": 1,
      "pass": true,
      "volume": {
        "deviation_pct": 0.48152755025717725,
        "original_mm3": 12546.194005836653,
        "pass": true,
        "roundtripped_mm3": 12485.780625189835
      }
    },
    {
      "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": 2,
      "pass": true,
      "volume": {
        "deviation_pct": 0.6099319923047454,
        "original_mm3": 12546.194008037157,
        "pass": true,
        "roundtripped_mm3": 12469.670756965517
      }
    }
  ],
  "tolerance_pct": 1
}

Tool calls

0
open_document
ok
2ms
args
{}
1
create
err
6ms
args
{
  "document_id": "doc_1781199699316_1",
  "type": "difference",
  "name": "Flanged Cap",
  "params": {
    "subject": {
      "type": "translate",
      "params": {
        "x": 30,
        "y": 30,
        "z": 0,
        "child": {
          "type": "cylinder",
          "params": {
            "radius": 30,
            "height": 8
          }
        }
      }
    },
    "tools": [
      {
        "type": "translate",
        "params": {
          "x": 30,
          "y": 30,
          "z": -1,
          "child": {
            "type": "cylinder",
            "params": {
              "radius": 20,
              "height": 10
            }
          }
        }
      },
      {
        "type": "circular_pattern",
        "params": {
          "count": 6,
          "angle_deg": 360,
          "axis": [
            0,
            0,
            1
          ],
          "center": [
            30,
            30,
            0
          ],
          "child": {
            "type": "translate",
            "params": {
              "x": 55,
              "y": 30,
              "z": -1,
              "child": {
                "type": "cylinder",
                "params": {
                  "radius": 2.5,
                  "height": 10
                }
              }
            }
          }
        }
      }
    ]
  }
}
2
read
ok
2ms
args
{
  "document_id": "doc_1781199699316_1"
}
3
create
err
4ms
args
{
  "document_id": "doc_1781199699316_1",
  "type": "cylinder",
  "name": "Outer",
  "params": {
    "radius": 30,
    "height": 8
  }
}
4
create
ok
5ms
args
{
  "document_id": "doc_1781199699316_1",
  "type": "cylinder",
  "name": "Outer",
  "params": {
    "radius": 30,
    "height": 8,
    "segments": 64
  }
}
5
read
ok
3ms
args
{
  "document_id": "doc_1781199699316_1",
  "part_id": "1"
}
6
delete
ok
5ms
args
{
  "document_id": "doc_1781199699316_1",
  "part_id": "1"
}
7
create_cad_loon
ok
13ms
args
{
  "source": "[root\n  [difference\n    [union\n      [translate 25 0 -1 [cylinder 2.5 10]]\n      [union\n        [translate 12.5 21.650635 -1 [cylinder 2.5 10]]\n        [union\n          [translate -12.5 21.650635 -1 [cylinder 2.5 10]]\n          [union\n            [translate -25 0 -1 [cylinder 2.5 10]]\n            [union\n              [translate -12.5 -21.650635 -1 [cylinder 2.5 10]]\n              [union\n                [translate 12.5 -21.650635 -1 [cylinder 2.5 10]]\n                [cylinder 20 10]]]]]]]\n    [cylinder 30 8]]\n  \"steel\"]",
  "format": "json"
}
8
create
err
6ms
args
{
  "document_id": "doc_1781199699316_1",
  "type": "difference",
  "name": "Flanged Cap",
  "params": "{\"left\": {\"type\": \"cylinder\", \"params\": {\"radius\": 30, \"height\": 8, \"segments\": 64}}, \"right\": {\"type\": \"union\", \"params\": {\"left\": {\"type\": \"translate\", \"params\": {\"offset\": {\"x\": 0, \"y\": 0, \"z\": -1}, \"child\": {\"type\": \"cylinder\", \"params\": {\"radius\": 20, \"height\": 10, \"segments\": 64}}}}, \"right\": {\"type\": \"union\", \"params\": {\"left\": {\"type\": \"translate\", \"params\": {\"offset\": {\"x\": 25, \"y\": 0, \"z\": -1}, \"child\": {\"type\": \"cylinder\", \"params\": {\"radius\": 2.5, \"height\": 10, \"segments\": 32}}}}, \"right\": {\"type\": \"union\", \"params\": {\"left\": {\"type\": \"translate\", \"params\": {\"offset\": {\"x\": 12.5, \"y\": 21.650635, \"z\": -1}, \"child\": {\"type\": \"cylinder\", \"params\": {\"radius\": 2.5, \"height\": 10, \"segments\": 32}}}}, \"right\": {\"type\": \"union\", \"params\": {\"left\": {\"type\": \"translate\", \"params\": {\"offset\": {\"x\": -12.5, \"y\": 21.650635, \"z\": -1}, \"child\": {\"type\": \"cylinder\", \"params\": {\"radius\": 2.5, \"height\": 10, \"segments\": 32}}}}, \"right\": {\"type\": \"union\", \"params\": {\"left\": {\"type\": \"translate\", \"params\": {\"offset\": {\"x\": -25, \"y\": 0, \"z\": -1}, \"child\": {\"type\": \"cylinder\", \"params\": {\"radius\": 2.5, \"height\": 10, \"segments\": 32}}}}, \"right\": {\"type\": \"union\", \"params\": {\"left\": {\"type\": \"translate\", \"params\": {\"offset\": {\"x\": -12.5, \"y\": -21.650635, \"z\": -1}, \"child\": {\"type\": \"cylinder\", \"params\": {\"radius\": 2.5, \"height\": 10, \"segments\": 32}}}}, \"right\": {\"type\": \"translate\", \"params\": {\"offset\": {\"x\": 12.5, \"y\": -21.650635, \"z\": -1}, \"child\": {\"type\": \"cylinder\", \"params\": {\"radius\": 2.5, \"height\": 10, \"segments\": 32}}}}}}}}}}}}}}}}"
}
9
create
ok
3ms
args
{
  "document_id": "doc_1781199699316_1",
  "type": "cylinder",
  "name": "Outer",
  "params": {
    "radius": 30,
    "height": 8,
    "segments": 64
  }
}
10
create
ok
3ms
args
{
  "document_id": "doc_1781199699316_1",
  "type": "cylinder",
  "name": "CenterHoleCyl",
  "params": {
    "radius": 20,
    "height": 10,
    "segments": 64
  }
}
11
delete
ok
2ms
args
{
  "document_id": "doc_1781199699316_1",
  "part_id": "1"
}
12
delete
ok
2ms
args
{
  "document_id": "doc_1781199699316_1",
  "part_id": "2"
}
13
create
ok
3ms
args
{
  "document_id": "doc_1781199699316_1",
  "type": "cylinder",
  "name": "Outer",
  "params": {
    "radius": 30,
    "height": 8,
    "segments": 64
  }
}
14
create
ok
3ms
args
{
  "document_id": "doc_1781199699316_1",
  "type": "cylinder",
  "name": "CenterHole",
  "parent_part_id": "1",
  "params": {
    "radius": 20,
    "height": 10,
    "segments": 64
  }
}
15
read
ok
1ms
args
{
  "document_id": "doc_1781199699316_1"
}
16
read
ok
3ms
args
{
  "document_id": "doc_1781199699316_1",
  "part_id": "2"
}
17
delete
ok
3ms
args
{
  "document_id": "doc_1781199699316_1",
  "part_id": "1"
}
18
delete
ok
2ms
args
{
  "document_id": "doc_1781199699316_1",
  "part_id": "2"
}
19
create
ok
2ms
args
{
  "document_id": "doc_1781199699316_1",
  "type": "cylinder",
  "name": "Outer",
  "params": {
    "radius": 30,
    "height": 8,
    "segments": 64
  }
}
20
create
err
3ms
args
{
  "document_id": "doc_1781199699316_1",
  "type": "difference",
  "name": "SubCenter",
  "parent_part_id": "1",
  "params": {
    "tool": {
      "type": "cylinder",
      "radius": 20,
      "height": 10,
      "segments": 64
    }
  }
}
21
create
err
3ms
args
{
  "document_id": "doc_1781199699316_1",
  "type": "difference",
  "name": "SubCenter",
  "parent_part_id": "1",
  "params": {
    "left": 1,
    "right": {
      "type": "Cylinder",
      "radius": 20,
      "height": 10,
      "segments": 64
    }
  }
}
22
create
ok
3ms
args
{
  "document_id": "doc_1781199699316_1",
  "type": "cylinder",
  "name": "CenterHoleCyl",
  "parent_part_id": "1",
  "params": {
    "radius": 20,
    "height": 10,
    "segments": 64
  }
}
23
read
ok
5ms
args
{
  "document_id": "doc_1781199699316_1"
}
24
delete
ok
3ms
args
{
  "document_id": "doc_1781199699316_1",
  "part_id": "1"
}
25
delete
ok
1ms
args
{
  "document_id": "doc_1781199699316_1",
  "part_id": "2"
}
26
create
ok
2ms
args
{
  "document_id": "doc_1781199699316_1",
  "type": "cylinder",
  "name": "Outer",
  "params": {
    "radius": 30,
    "height": 8,
    "segments": 64
  }
}
27
create
err
3ms
args
{
  "document_id": "doc_1781199699316_1",
  "type": "translate",
  "name": "CenterHoleXform",
  "parent_part_id": "1",
  "params": {
    "x": 0,
    "y": 0,
    "z": -1
  }
}
28
create
ok
2ms
args
{
  "document_id": "doc_1781199699316_1",
  "type": "cylinder",
  "name": "CenterHoleCyl",
  "parent_part_id": "1",
  "params": {
    "radius": 20,
    "height": 10,
    "segments": 64
  }
}
29
read
ok
2ms
args
{
  "document_id": "doc_1781199699316_1",
  "part_id": "2"
}
30
delete
ok
1ms
args
{
  "document_id": "doc_1781199699316_1",
  "part_id": "2"
}
31
create
err
3ms
args
{
  "document_id": "doc_1781199699316_1",
  "type": "difference",
  "name": "SubCenter",
  "parent_part_id": "1",
  "params": {
    "right": {
      "type": "Cylinder",
      "radius": 20,
      "height": 10,
      "segments": 64
    }
  }
}
32
create
ok
2ms
args
{
  "document_id": "doc_1781199699316_1",
  "type": "cylinder",
  "name": "tmp",
  "params": {
    "radius": 20,
    "height": 10,
    "segments": 64
  }
}
33
create
err
4ms
args
{
  "document_id": "doc_1781199699316_1",
  "type": "difference",
  "name": "SubCenter",
  "parent_part_id": "1",
  "params": {
    "right": 2
  }
}
34
create
ok
1ms
args
{
  "document_id": "doc_1781199699316_1",
  "type": "difference",
  "name": "SubCenter",
  "parent_part_id": "1",
  "params": {
    "left": 1,
    "right": 2
  }
}
35
get_document
ok
0ms
args
{
  "document_id": "doc_1781199699316_1"
}

What the model built

isometric render via vcad-render · the model's actual .vcad output, faceted at 28 segments per cylinder · download 20260611T174139Z-2d08.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": "tmp",
      "op": {
        "type": "Cylinder",
        "radius": 20,
        "height": 10,
        "segments": 64
      }
    },
    "3": {
      "id": 3,
      "name": "SubCenter",
      "op": {
        "type": "Difference",
        "left": 1,
        "right": 2
      }
    }
  },
  "materials": {},
  "part_materials": {},
  "roots": [
    {
      "root": 1,
      "material": "default"
    },
    {
      "root": 2,
      "material": "default"
    },
    {
      "root": 3,
      "material": "default"
    }
  ]
}
mecheval · an evaluation suite by Municipal Robotics
sibling project: vcad. · github

generated 2026-06-19T01:47:55.598Z · static site, regenerate with npm run build -w @mecheval/leaderboard