← mecheval / run / a5-ribbed-plate-01 / claude-mcp-claude-opus-4-7 / 20260611T225206Z-bce5

run 20260611T225206Z-bce5

a5-ribbed-plate-01 · claude-mcp-claude-opus-4-7

Summary

statusfail
score0.33 (2/6)
submissionself-run
modelclaude-mcp-claude-opus-4-7 (anthropic)
started2026-06-11T22:52:06.279Z
ended2026-06-11T22:53:55.160Z
tokens651,715 in · 6,553 out · 658,268 total
wallclock108.8s
tool calls42
task hash9b12379e05299981…
vcad hashd2e92f726f75427a…

Prompt

Make a ribbed plate as a single solid. The top plate is 120mm × 80mm × 10mm with its bottom face at z = 10 and top face at z = 20, centered in X and Y (x in [-60, 60], y in [-40, 40]). Three stiffening ribs run along the full length of the plate (along X) on the underside: each rib is 120mm long × 8mm wide × 10mm tall (z = 0 to z = 10). Rib A is centered at y = -24: it spans x in [-60, 60], y in [-28, -20], z in [0, 10]. Rib B is centered at y = 0: it spans x in [-60, 60], y in [-4, 4], z in [0, 10]. Rib C is centered at y = 24: it spans x in [-60, 60], y in [20, 28], z in [0, 10]. Four bolt holes of diameter 8mm, axes parallel to Z, pass through the entire assembly height (z = 0 to z = 20), located at the four corners: (45, 30), (-45, 30), (-45, -30), (45, -30). 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
X off by +60.00mm
params + details 
params: {
  "type": "bbox",
  "min": [
    -60,
    -40,
    0
  ],
  "max": [
    60,
    40,
    20
  ],
  "tolerance_mm": 0.1
}

details: {
  "actual_max": [
    120,
    40,
    20
  ],
  "actual_min": [
    -60,
    -40,
    0
  ],
  "deviation_max": [
    60,
    0,
    0
  ],
  "deviation_min": [
    0,
    0,
    0
  ],
  "max_abs_deviation_mm": 60,
  "tolerance_mm": 0.1
}
2
mass_props
fail
volume off by 12.6%
params + details 
params: {
  "type": "mass_props",
  "volume_mm3": 120778.76,
  "center_of_mass": [
    0,
    0,
    12.78
  ],
  "tolerance_pct": 1
}

details: {
  "center_of_mass": {
    "actual": [
      5.454545454545454,
      0.36363636363636365,
      14.090909090909092
    ],
    "bbox_diagonal_mm": 197.9898987322333,
    "deviation": [
      5.454545454545454,
      0.36363636363636365,
      1.3109090909090924
    ],
    "max_abs_deviation_mm": 5.454545454545454,
    "pass": false,
    "spec": [
      0,
      0,
      12.78
    ],
    "tolerance_mm": 1.9798989873223332
  },
  "volume": {
    "actual_mm3": 105600,
    "deviation_pct": 12.567408375446142,
    "pass": false,
    "spec_mm3": 120778.76,
    "tolerance_pct": 1
  }
}
3
hole_count
fail
found 0/4 holes of ⌀8mm
params + details 
params: {
  "type": "hole_count",
  "diameter_mm": 8,
  "expected": 4,
  "diameter_tolerance_mm": 0.05
}

details: {
  "actual": 0,
  "diameter_mm": 8,
  "diameter_tolerance_mm": 0.05,
  "expected": 4,
  "found": []
}
4
hole_positions
fail
4/4 mispositioned
params + details 
params: {
  "type": "hole_positions",
  "diameter_mm": 8,
  "positions": [
    [
      45,
      30,
      0
    ],
    [
      -45,
      30,
      0
    ],
    [
      -45,
      -30,
      0
    ],
    [
      45,
      -30,
      0
    ]
  ],
  "tolerance_mm": 0.2
}

details: {
  "diameter_mm": 8,
  "per_expected": [
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        45,
        30
      ]
    },
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        -45,
        30
      ]
    },
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        -45,
        -30
      ]
    },
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        45,
        -30
      ]
    }
  ],
  "tolerance_mm": 0.2,
  "unmatched_extras": []
}
5
step_roundtrip
pass
params + details 
params: {
  "type": "step_roundtrip",
  "tolerance_pct": 1
}

details: {
  "per_solid": [
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          60,
          40,
          20
        ],
        "original_min": [
          -60,
          -40,
          10
        ],
        "pass": true,
        "roundtripped_max": [
          60,
          40,
          20
        ],
        "roundtripped_min": [
          -60,
          -40,
          10
        ],
        "tolerance_mm": 1.445683229480096
      },
      "index": 0,
      "pass": true,
      "volume": {
        "deviation_pct": 0,
        "original_mm3": 96000,
        "pass": true,
        "roundtripped_mm3": 96000
      }
    },
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          120,
          8,
          10
        ],
        "original_min": [
          0,
          0,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          120,
          8,
          10
        ],
        "roundtripped_min": [
          0,
          0,
          0
        ],
        "tolerance_mm": 1.2068139873236472
      },
      "index": 1,
      "pass": true,
      "volume": {
        "deviation_pct": 0,
        "original_mm3": 9600,
        "pass": true,
        "roundtripped_mm3": 9600
      }
    }
  ],
  "tolerance_pct": 1
}

Tool calls

0
open_document
ok
2ms
args
{}
1
create
err
6ms
args
{
  "document_id": "doc_1781218326448_1",
  "type": "difference",
  "name": "Ribbed Plate",
  "params": {
    "children": [
      {
        "op": "union",
        "children": [
          {
            "op": "translate",
            "x": -60,
            "y": -40,
            "z": 10,
            "child": {
              "op": "cube",
              "x": 120,
              "y": 80,
              "z": 10
            }
          },
          {
            "op": "translate",
            "x": -60,
            "y": -28,
            "z": 0,
            "child": {
              "op": "cube",
              "x": 120,
              "y": 8,
              "z": 10
            }
          },
          {
            "op": "translate",
            "x": -60,
            "y": -4,
            "z": 0,
            "child": {
              "op": "cube",
              "x": 120,
              "y": 8,
              "z": 10
            }
          },
          {
            "op": "translate",
            "x": -60,
            "y": 20,
            "z": 0,
            "child": {
              "op": "cube",
              "x": 120,
              "y": 8,
              "z": 10
            }
          }
        ]
      },
      {
        "op": "translate",
        "x": 45,
        "y": 30,
        "z": 0,
        "child": {
          "op": "cylinder",
          "r": 4,
          "h": 20
        }
      },
      {
        "op": "translate",
        "x": -45,
        "y": 30,
        "z": 0,
        "child": {
          "op": "cylinder",
          "r": 4,
          "h": 20
        }
      },
      {
        "op": "translate",
        "x": -45,
        "y": -30,
        "z": 0,
        "child": {
          "op": "cylinder",
          "r": 4,
          "h": 20
        }
      },
      {
        "op": "translate",
        "x": 45,
        "y": -30,
        "z": 0,
        "child": {
          "op": "cylinder",
          "r": 4,
          "h": 20
        }
      }
    ]
  }
}
2
read
ok
4ms
args
{
  "document_id": "doc_1781218326448_1"
}
3
create
ok
5ms
args
{
  "document_id": "doc_1781218326448_1",
  "type": "cube",
  "name": "TopPlate",
  "params": {
    "size": [
      120,
      80,
      10
    ],
    "center": [
      0,
      0,
      15
    ]
  }
}
4
read
ok
3ms
args
{
  "document_id": "doc_1781218326448_1",
  "part_id": "1"
}
5
delete
ok
3ms
args
{
  "document_id": "doc_1781218326448_1",
  "part_id": "1"
}
6
create_cad_loon
ok
14ms
args
{
  "source": "[let solid\n  [difference\n    [union\n      [translate 45 30 0 [cylinder 4 20]]\n      [union\n        [translate -45 30 0 [cylinder 4 20]]\n        [union\n          [translate -45 -30 0 [cylinder 4 20]]\n          [translate 45 -30 0 [cylinder 4 20]]]]]\n    [union\n      [translate -60 -40 10 [cube 120 80 10]]\n      [union\n        [translate -60 -28 0 [cube 120 8 10]]\n        [union\n          [translate -60 -4 0 [cube 120 8 10]]\n          [translate -60 20 0 [cube 120 8 10]]]]]]\n  [root solid \"steel\"]]",
  "format": "json"
}
7
create
ok
3ms
args
{
  "document_id": "doc_1781218326448_1",
  "type": "cube",
  "name": "plate_raw",
  "params": {
    "size": {
      "x": 120,
      "y": 80,
      "z": 10
    }
  }
}
8
delete
ok
3ms
args
{
  "document_id": "doc_1781218326448_1",
  "part_id": "1"
}
9
create
ok
3ms
args
{
  "document_id": "doc_1781218326448_1",
  "type": "cube",
  "params": {
    "size": {
      "x": 120,
      "y": 80,
      "z": 10
    }
  }
}
10
create
ok
2ms
args
{
  "document_id": "doc_1781218326448_1",
  "type": "cube",
  "params": {
    "size": {
      "x": 120,
      "y": 8,
      "z": 10
    }
  }
}
11
create
ok
1ms
args
{
  "document_id": "doc_1781218326448_1",
  "type": "cube",
  "params": {
    "size": {
      "x": 120,
      "y": 8,
      "z": 10
    }
  }
}
12
create
ok
1ms
args
{
  "document_id": "doc_1781218326448_1",
  "type": "cube",
  "params": {
    "size": {
      "x": 120,
      "y": 8,
      "z": 10
    }
  }
}
13
create
err
1ms
args
{
  "document_id": "doc_1781218326448_1",
  "type": "cylinder",
  "params": {
    "radius": 4,
    "height": 20
  }
}
14
create
err
1ms
args
{
  "document_id": "doc_1781218326448_1",
  "type": "cylinder",
  "params": {
    "radius": 4,
    "height": 20
  }
}
15
create
err
1ms
args
{
  "document_id": "doc_1781218326448_1",
  "type": "cylinder",
  "params": {
    "radius": 4,
    "height": 20
  }
}
16
create
err
1ms
args
{
  "document_id": "doc_1781218326448_1",
  "type": "cylinder",
  "params": {
    "radius": 4,
    "height": 20
  }
}
17
read
ok
3ms
args
{
  "document_id": "doc_1781218326448_1"
}
18
delete
ok
5ms
args
{
  "document_id": "doc_1781218326448_1",
  "part_id": "1"
}
19
delete
ok
2ms
args
{
  "document_id": "doc_1781218326448_1",
  "part_id": "2"
}
20
delete
ok
1ms
args
{
  "document_id": "doc_1781218326448_1",
  "part_id": "3"
}
21
delete
ok
1ms
args
{
  "document_id": "doc_1781218326448_1",
  "part_id": "4"
}
22
create
ok
3ms
args
{
  "document_id": "doc_1781218326448_1",
  "type": "cube",
  "name": "plate",
  "params": {
    "size": {
      "x": 120,
      "y": 80,
      "z": 10
    }
  }
}
23
create
err
3ms
args
{
  "document_id": "doc_1781218326448_1",
  "type": "translate",
  "parent_part_id": "1",
  "params": {
    "offset": {
      "x": -60,
      "y": -40,
      "z": 10
    }
  }
}
24
create
ok
3ms
args
{
  "document_id": "doc_1781218326448_1",
  "type": "translate",
  "parent_part_id": "1",
  "params": {
    "offset": {
      "x": -60,
      "y": -40,
      "z": 10
    },
    "child": 1
  }
}
25
read
ok
2ms
args
{
  "document_id": "doc_1781218326448_1"
}
26
read
ok
3ms
args
{
  "document_id": "doc_1781218326448_1",
  "part_id": "2"
}
27
read
ok
2ms
args
{
  "document_id": "doc_1781218326448_1",
  "part_id": "1"
}
28
delete
ok
3ms
args
{
  "document_id": "doc_1781218326448_1",
  "part_id": "1"
}
29
read
ok
3ms
args
{
  "document_id": "doc_1781218326448_1",
  "part_id": "2"
}
30
create
ok
3ms
args
{
  "document_id": "doc_1781218326448_1",
  "type": "cube",
  "parent_part_id": "2",
  "params": {
    "size": {
      "x": 120,
      "y": 8,
      "z": 10
    }
  }
}
31
read
ok
3ms
args
{
  "document_id": "doc_1781218326448_1",
  "part_id": "3"
}
32
delete
ok
4ms
args
{
  "document_id": "doc_1781218326448_1",
  "part_id": "3"
}
33
create
err
3ms
args
{
  "document_id": "doc_1781218326448_1",
  "type": "union",
  "parent_part_id": "2",
  "params": {
    "left": 2,
    "right": {
      "type": "translate",
      "offset": {
        "x": -60,
        "y": -28,
        "z": 0
      },
      "child": {
        "type": "cube",
        "size": {
          "x": 120,
          "y": 8,
          "z": 10
        }
      }
    }
  }
}
34
create_cad_loon
ok
5ms
args
{
  "source": "[let solid\n  [difference\n    [union\n      [translate 45 30 0 [cylinder 4 20]]\n      [union\n        [translate -45 30 0 [cylinder 4 20]]\n        [union\n          [translate -45 -30 0 [cylinder 4 20]]\n          [translate 45 -30 0 [cylinder 4 20]]]]]\n    [union\n      [translate -60 -40 10 [cube 120 80 10]]\n      [union\n        [translate -60 -28 0 [cube 120 8 10]]\n        [union\n          [translate -60 -4 0 [cube 120 8 10]]\n          [translate -60 20 0 [cube 120 8 10]]]]]]\n  [root solid \"steel\"]]",
  "format": "json"
}
35
delete
ok
2ms
args
{
  "document_id": "doc_1781218326448_1",
  "part_id": "2"
}
36
read
ok
3ms
args
{
  "document_id": "doc_1781218326448_1"
}
37
create
ok
3ms
args
{
  "document_id": "doc_1781218326448_1",
  "type": "cube",
  "name": "plate_cube",
  "params": {
    "size": {
      "x": 120,
      "y": 80,
      "z": 10
    }
  }
}
38
create
ok
3ms
args
{
  "document_id": "doc_1781218326448_1",
  "type": "translate",
  "parent_part_id": "1",
  "params": {
    "offset": {
      "x": -60,
      "y": -40,
      "z": 10
    },
    "child": 1
  }
}
39
delete
ok
2ms
args
{
  "document_id": "doc_1781218326448_1",
  "part_id": "1"
}
40
create
ok
3ms
args
{
  "document_id": "doc_1781218326448_1",
  "type": "cube",
  "params": {
    "size": {
      "x": 120,
      "y": 8,
      "z": 10
    }
  }
}
41
get_document
ok
1ms
args
{
  "document_id": "doc_1781218326448_1"
}

What the model built

isometric render via vcad-render · the model's actual .vcad output, faceted at 28 segments per cylinder · download 20260611T225206Z-bce5.vcad

.vcad source

{
  "version": "0.1",
  "nodes": {
    "1": {
      "id": 1,
      "name": "plate_cube",
      "op": {
        "type": "Cube",
        "size": {
          "x": 120,
          "y": 80,
          "z": 10
        }
      }
    },
    "2": {
      "id": 2,
      "name": null,
      "op": {
        "type": "Translate",
        "child": 1,
        "offset": {
          "x": -60,
          "y": -40,
          "z": 10
        }
      }
    },
    "3": {
      "id": 3,
      "name": null,
      "op": {
        "type": "Cube",
        "size": {
          "x": 120,
          "y": 8,
          "z": 10
        }
      }
    }
  },
  "materials": {},
  "part_materials": {},
  "roots": [
    {
      "root": 2,
      "material": "default"
    },
    {
      "root": 3,
      "material": "default"
    }
  ]
}
mecheval · an evaluation suite by Municipal Robotics
sibling project: vcad. · github

generated 2026-06-19T01:47:56.231Z · static site, regenerate with npm run build -w @mecheval/leaderboard