← mecheval / run / a2-square-flange-01 / claude-mcp-claude-opus-4-7 / 20260611T175155Z-dc65

run 20260611T175155Z-dc65

a2-square-flange-01 · claude-mcp-claude-opus-4-7

Summary

statusfail
score0.50 (4/8)
submissionself-run
modelclaude-mcp-claude-opus-4-7 (anthropic)
started2026-06-11T17:51:55.931Z
ended2026-06-11T17:55:19.909Z
tokens572,635 in · 5,420 out · 578,055 total
wallclock203.9s
tool calls36
task hash5be67adc7641fb5a…
vcad hash2bf5515383872e74…

Prompt

Make a square plate 80mm × 80mm × 6mm (X × Y × Z). Center it in X and Y, with the bottom face on the XY plane (z = 0 to z = 6). Drill one central through-hole of diameter 12mm on the Z axis, and four corner through-holes of diameter 6mm with axes parallel to Z, centered 10mm in from each corner of the top face. Output a single solid.

Checks

0
valid_solid
pass
params + details 
params: {
  "type": "valid_solid"
}

details: {
  "root_count": 2,
  "solids_produced": 2
}
1
bbox
fail
Z off by +2.00mm
params + details 
params: {
  "type": "bbox",
  "min": [
    -40,
    -40,
    0
  ],
  "max": [
    40,
    40,
    6
  ],
  "tolerance_mm": 0.1
}

details: {
  "actual_max": [
    40,
    40,
    8
  ],
  "actual_min": [
    -40,
    -40,
    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 2.0%
params + details 
params: {
  "type": "mass_props",
  "volume_mm3": 37042.83,
  "tolerance_pct": 0.5
}

details: {
  "volume": {
    "actual_mm3": 37778.68118013351,
    "deviation_pct": 1.9864874798537575,
    "pass": false,
    "spec_mm3": 37042.83,
    "tolerance_pct": 0.5
  }
}
3
hole_count
pass
params + details 
params: {
  "type": "hole_count",
  "diameter_mm": 12,
  "expected": 1,
  "diameter_tolerance_mm": 0.1
}

details: {
  "actual": 1,
  "diameter_mm": 12,
  "diameter_tolerance_mm": 0.1,
  "expected": 1,
  "found": [
    [
      0,
      0,
      12
    ]
  ]
}
4
hole_count
fail
found 1/4 holes of ⌀6mm
params + details 
params: {
  "type": "hole_count",
  "diameter_mm": 6,
  "expected": 4,
  "diameter_tolerance_mm": 0.05
}

details: {
  "actual": 1,
  "diameter_mm": 6,
  "diameter_tolerance_mm": 0.05,
  "expected": 4,
  "found": [
    [
      -30,
      -30,
      6
    ]
  ]
}
5
hole_positions
pass
params + details 
params: {
  "type": "hole_positions",
  "diameter_mm": 12,
  "positions": [
    [
      0,
      0,
      0
    ]
  ],
  "tolerance_mm": 0.15
}

details: {
  "diameter_mm": 12,
  "per_expected": [
    {
      "distance_mm": 0,
      "matched_hole": [
        0,
        0
      ],
      "pass": true,
      "spec_xy": [
        0,
        0
      ]
    }
  ],
  "tolerance_mm": 0.15,
  "unmatched_extras": []
}
6
hole_positions
fail
3/4 mispositioned
params + details 
params: {
  "type": "hole_positions",
  "diameter_mm": 6,
  "positions": [
    [
      30,
      30,
      0
    ],
    [
      -30,
      30,
      0
    ],
    [
      -30,
      -30,
      0
    ],
    [
      30,
      -30,
      0
    ]
  ],
  "tolerance_mm": 0.15
}

details: {
  "diameter_mm": 6,
  "per_expected": [
    {
      "nearest_distance_mm": 84.8528137423857,
      "pass": false,
      "spec_xy": [
        30,
        30
      ],
      "tolerance_mm": 0.15
    },
    {
      "nearest_distance_mm": 60,
      "pass": false,
      "spec_xy": [
        -30,
        30
      ],
      "tolerance_mm": 0.15
    },
    {
      "distance_mm": 0,
      "matched_hole": [
        -30,
        -30
      ],
      "pass": true,
      "spec_xy": [
        -30,
        -30
      ]
    },
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        30,
        -30
      ]
    }
  ],
  "tolerance_mm": 0.15,
  "unmatched_extras": []
}
7
step_roundtrip
pass
params + details 
params: {
  "type": "step_roundtrip",
  "tolerance_pct": 1
}

details: {
  "per_solid": [
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          40,
          40,
          6
        ],
        "original_min": [
          -40,
          -40,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          40,
          40,
          6
        ],
        "roundtripped_min": [
          -40,
          -40,
          0
        ],
        "tolerance_mm": 1.1329607230614838
      },
      "index": 0,
      "pass": true,
      "volume": {
        "deviation_pct": 0.007239371749987657,
        "original_mm3": 37553.13192503475,
        "pass": true,
        "roundtripped_mm3": 37555.85053585857
      }
    },
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          3,
          3,
          8
        ],
        "original_min": [
          -3,
          -3,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          3,
          3,
          8
        ],
        "roundtripped_min": [
          -3,
          -3,
          0
        ],
        "tolerance_mm": 0.11661903789690602
      },
      "index": 1,
      "pass": true,
      "volume": {
        "deviation_pct": 0.3569966987905996,
        "original_mm3": 225.54925509876284,
        "pass": true,
        "roundtripped_mm3": 224.74405170391347
      }
    }
  ],
  "tolerance_pct": 1
}

Tool calls

0
open_document
ok
2ms
args
{}
1
create
err
6ms
args
{
  "document_id": "doc_1781200316099_1",
  "type": "difference",
  "name": "Plate with holes",
  "params": {
    "children": [
      {
        "type": "translate",
        "params": {
          "x": -40,
          "y": -40,
          "z": 0,
          "child": {
            "type": "cube",
            "params": {
              "x": 80,
              "y": 80,
              "z": 6
            }
          }
        }
      },
      {
        "type": "translate",
        "params": {
          "x": 0,
          "y": 0,
          "z": -1,
          "child": {
            "type": "cylinder",
            "params": {
              "r": 6,
              "h": 8
            }
          }
        }
      },
      {
        "type": "translate",
        "params": {
          "x": -30,
          "y": -30,
          "z": -1,
          "child": {
            "type": "cylinder",
            "params": {
              "r": 3,
              "h": 8
            }
          }
        }
      },
      {
        "type": "translate",
        "params": {
          "x": 30,
          "y": -30,
          "z": -1,
          "child": {
            "type": "cylinder",
            "params": {
              "r": 3,
              "h": 8
            }
          }
        }
      },
      {
        "type": "translate",
        "params": {
          "x": -30,
          "y": 30,
          "z": -1,
          "child": {
            "type": "cylinder",
            "params": {
              "r": 3,
              "h": 8
            }
          }
        }
      },
      {
        "type": "translate",
        "params": {
          "x": 30,
          "y": 30,
          "z": -1,
          "child": {
            "type": "cylinder",
            "params": {
              "r": 3,
              "h": 8
            }
          }
        }
      }
    ]
  }
}
2
create_cad_loon
ok
13ms
args
{
  "source": "[let plate [translate -40 -40 0 [cube 80 80 6]]\n [let center-hole [translate 0 0 -1 [cylinder 6 8]]\n  [let c1 [translate -30 -30 -1 [cylinder 3 8]]\n   [let c2 [translate 30 -30 -1 [cylinder 3 8]]\n    [let c3 [translate -30 30 -1 [cylinder 3 8]]\n     [let c4 [translate 30 30 -1 [cylinder 3 8]]\n      [root [difference c4 [difference c3 [difference c2 [difference c1 [difference center-hole plate]]]]] \"steel\"]]]]]]]",
  "format": "json"
}
3
create
err
3ms
args
{
  "document_id": "doc_1781200316099_1",
  "type": "cube",
  "name": "plate_block",
  "params": {
    "x": 80,
    "y": 80,
    "z": 6
  }
}
4
create
ok
5ms
args
{
  "document_id": "doc_1781200316099_1",
  "type": "cube",
  "name": "plate_block",
  "params": {
    "size": {
      "x": 80,
      "y": 80,
      "z": 6
    }
  }
}
5
read
ok
3ms
args
{
  "document_id": "doc_1781200316099_1",
  "part_id": "1"
}
6
delete
ok
3ms
args
{
  "document_id": "doc_1781200316099_1",
  "part_id": "1"
}
7
create
ok
3ms
args
{
  "document_id": "doc_1781200316099_1",
  "type": "cube",
  "name": "plate_block",
  "params": {
    "size": {
      "x": 80,
      "y": 80,
      "z": 6
    }
  }
}
8
create
ok
6ms
args
{
  "document_id": "doc_1781200316099_1",
  "type": "translate",
  "name": "center_plate",
  "parent_part_id": "1",
  "params": {
    "offset": {
      "x": -40,
      "y": -40,
      "z": 0
    },
    "child": 1
  }
}
9
read
ok
4ms
args
{
  "document_id": "doc_1781200316099_1"
}
10
delete
ok
2ms
args
{
  "document_id": "doc_1781200316099_1",
  "part_id": "1"
}
11
delete
ok
1ms
args
{
  "document_id": "doc_1781200316099_1",
  "part_id": "2"
}
12
create
ok
3ms
args
{
  "document_id": "doc_1781200316099_1",
  "type": "cube",
  "name": "plate",
  "params": {
    "size": {
      "x": 80,
      "y": 80,
      "z": 6
    }
  }
}
13
create
err
4ms
args
{
  "document_id": "doc_1781200316099_1",
  "type": "translate",
  "name": "center_plate",
  "parent_part_id": "1",
  "params": {
    "offset": {
      "x": -40,
      "y": -40,
      "z": 0
    }
  }
}
14
create
ok
3ms
args
{
  "document_id": "doc_1781200316099_1",
  "type": "translate",
  "name": "center_plate",
  "parent_part_id": "1",
  "params": {
    "offset": {
      "x": -40,
      "y": -40,
      "z": 0
    },
    "child": 1
  }
}
15
read
ok
3ms
args
{
  "document_id": "doc_1781200316099_1"
}
16
read
ok
3ms
args
{
  "document_id": "doc_1781200316099_1",
  "part_id": "2"
}
17
get_document
ok
2ms
args
{
  "document_id": "doc_1781200316099_1"
}
18
delete
ok
4ms
args
{
  "document_id": "doc_1781200316099_1",
  "part_id": "1"
}
19
get_document
ok
2ms
args
{
  "document_id": "doc_1781200316099_1"
}
20
create
err
2ms
args
{
  "document_id": "doc_1781200316099_1",
  "type": "cylinder",
  "name": "center_hole_cyl",
  "params": {
    "radius": 6,
    "height": 8
  }
}
21
create
ok
1ms
args
{
  "document_id": "doc_1781200316099_1",
  "type": "cylinder",
  "name": "center_hole_cyl",
  "params": {
    "radius": 6,
    "height": 8,
    "segments": 64
  }
}
22
create
ok
4ms
args
{
  "document_id": "doc_1781200316099_1",
  "type": "translate",
  "name": "center_hole_pos",
  "parent_part_id": "3",
  "params": {
    "offset": {
      "x": 0,
      "y": 0,
      "z": -1
    },
    "child": 3
  }
}
23
delete
ok
3ms
args
{
  "document_id": "doc_1781200316099_1",
  "part_id": "3"
}
24
create
ok
7ms
args
{
  "document_id": "doc_1781200316099_1",
  "type": "difference",
  "name": "plate_minus_center",
  "params": {
    "left": 2,
    "right": 4
  }
}
25
get_document
ok
3ms
args
{
  "document_id": "doc_1781200316099_1"
}
26
delete
ok
3ms
args
{
  "document_id": "doc_1781200316099_1",
  "part_id": "2"
}
27
delete
ok
2ms
args
{
  "document_id": "doc_1781200316099_1",
  "part_id": "4"
}
28
create
ok
4ms
args
{
  "document_id": "doc_1781200316099_1",
  "type": "cylinder",
  "name": "c1_cyl",
  "params": {
    "radius": 3,
    "height": 8,
    "segments": 48
  }
}
29
create
ok
3ms
args
{
  "document_id": "doc_1781200316099_1",
  "type": "translate",
  "name": "c1_pos",
  "parent_part_id": "6",
  "params": {
    "offset": {
      "x": -30,
      "y": -30,
      "z": -1
    },
    "child": 6
  }
}
30
delete
ok
3ms
args
{
  "document_id": "doc_1781200316099_1",
  "part_id": "6"
}
31
create
ok
2ms
args
{
  "document_id": "doc_1781200316099_1",
  "type": "difference",
  "name": "minus_c1",
  "params": {
    "left": 5,
    "right": 7
  }
}
32
delete
ok
2ms
args
{
  "document_id": "doc_1781200316099_1",
  "part_id": "5"
}
33
delete
ok
2ms
args
{
  "document_id": "doc_1781200316099_1",
  "part_id": "7"
}
34
create
ok
1ms
args
{
  "document_id": "doc_1781200316099_1",
  "type": "cylinder",
  "name": "c2_cyl",
  "params": {
    "radius": 3,
    "height": 8,
    "segments": 48
  }
}
35
get_document
ok
0ms
args
{
  "document_id": "doc_1781200316099_1"
}

What the model built

isometric render via vcad-render · the model's actual .vcad output, faceted at 28 segments per cylinder · download 20260611T175155Z-dc65.vcad

.vcad source

{
  "version": "0.1",
  "nodes": {
    "1": {
      "id": 1,
      "name": "plate",
      "op": {
        "type": "Cube",
        "size": {
          "x": 80,
          "y": 80,
          "z": 6
        }
      }
    },
    "2": {
      "id": 2,
      "name": "center_plate",
      "op": {
        "type": "Translate",
        "child": 1,
        "offset": {
          "x": -40,
          "y": -40,
          "z": 0
        }
      }
    },
    "3": {
      "id": 3,
      "name": "center_hole_cyl",
      "op": {
        "type": "Cylinder",
        "radius": 6,
        "height": 8,
        "segments": 64
      }
    },
    "4": {
      "id": 4,
      "name": "center_hole_pos",
      "op": {
        "type": "Translate",
        "child": 3,
        "offset": {
          "x": 0,
          "y": 0,
          "z": -1
        }
      }
    },
    "5": {
      "id": 5,
      "name": "plate_minus_center",
      "op": {
        "type": "Difference",
        "left": 2,
        "right": 4
      }
    },
    "6": {
      "id": 6,
      "name": "c1_cyl",
      "op": {
        "type": "Cylinder",
        "radius": 3,
        "height": 8,
        "segments": 48
      }
    },
    "7": {
      "id": 7,
      "name": "c1_pos",
      "op": {
        "type": "Translate",
        "child": 6,
        "offset": {
          "x": -30,
          "y": -30,
          "z": -1
        }
      }
    },
    "8": {
      "id": 8,
      "name": "minus_c1",
      "op": {
        "type": "Difference",
        "left": 5,
        "right": 7
      }
    },
    "9": {
      "id": 9,
      "name": "c2_cyl",
      "op": {
        "type": "Cylinder",
        "radius": 3,
        "height": 8,
        "segments": 48
      }
    }
  },
  "materials": {},
  "part_materials": {},
  "roots": [
    {
      "root": 8,
      "material": "default"
    },
    {
      "root": 9,
      "material": "default"
    }
  ]
}
mecheval · an evaluation suite by Municipal Robotics
sibling project: vcad. · github

generated 2026-06-19T01:47:55.686Z · static site, regenerate with npm run build -w @mecheval/leaderboard