← mecheval / run / a5-ribbed-plate-01 / claude-mcp-claude-opus-4-7 / 20260611T225501Z-f9e0

run 20260611T225501Z-f9e0

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

Summary

statusfail
score0.67 (4/6)
submissionself-run
modelclaude-mcp-claude-opus-4-7 (anthropic)
started2026-06-11T22:55:01.942Z
ended2026-06-11T22:56:53.584Z
tokens507,314 in · 7,858 out · 515,172 total
wallclock111.6s
tool calls57
task hash9b12379e05299981…
vcad hashfffef539025728cb…

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": 1,
  "solids_produced": 1
}
1
bbox
pass
params + details 
params: {
  "type": "bbox",
  "min": [
    -60,
    -40,
    0
  ],
  "max": [
    60,
    40,
    20
  ],
  "tolerance_mm": 0.1
}

details: {
  "actual_max": [
    60,
    40,
    20
  ],
  "actual_min": [
    -60,
    -40,
    0
  ],
  "deviation_max": [
    0,
    0,
    0
  ],
  "deviation_min": [
    0,
    0,
    0
  ],
  "max_abs_deviation_mm": 0,
  "tolerance_mm": 0.1
}
2
mass_props
fail
volume off by 8.2%
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": [
      -0.6157140390613833,
      -1.142877041390871e-16,
      12.455905224752293
    ],
    "bbox_diagonal_mm": 145.60219778561037,
    "deviation": [
      -0.6157140390613833,
      -1.142877041390871e-16,
      -0.3240947752477066
    ],
    "max_abs_deviation_mm": 0.6157140390613833,
    "pass": true,
    "spec": [
      0,
      0,
      12.78
    ],
    "tolerance_mm": 1.4560219778561037
  },
  "volume": {
    "actual_mm3": 130642.84969741658,
    "deviation_pct": 8.167073165361675,
    "pass": false,
    "spec_mm3": 120778.76,
    "tolerance_pct": 1
  }
}
3
hole_count
pass
params + details 
params: {
  "type": "hole_count",
  "diameter_mm": 8,
  "expected": 4,
  "diameter_tolerance_mm": 0.05
}

details: {
  "actual": 4,
  "diameter_mm": 8,
  "diameter_tolerance_mm": 0.05,
  "expected": 4,
  "found": [
    [
      -45,
      -30,
      8
    ],
    [
      45,
      -30,
      8
    ],
    [
      45,
      30,
      8
    ],
    [
      -45,
      30,
      8
    ]
  ]
}
4
hole_positions
pass
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": [
    {
      "distance_mm": 0,
      "matched_hole": [
        45,
        30
      ],
      "pass": true,
      "spec_xy": [
        45,
        30
      ]
    },
    {
      "distance_mm": 0,
      "matched_hole": [
        -45,
        30
      ],
      "pass": true,
      "spec_xy": [
        -45,
        30
      ]
    },
    {
      "distance_mm": 0,
      "matched_hole": [
        -45,
        -30
      ],
      "pass": true,
      "spec_xy": [
        -45,
        -30
      ]
    },
    {
      "distance_mm": 0,
      "matched_hole": [
        45,
        -30
      ],
      "pass": true,
      "spec_xy": [
        45,
        -30
      ]
    }
  ],
  "tolerance_mm": 0.2,
  "unmatched_extras": []
}
5
step_roundtrip
fail
STEP drift on 1/1 solid
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,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          60,
          40,
          20
        ],
        "roundtripped_min": [
          -60,
          -40,
          0
        ],
        "tolerance_mm": 1.4560219778561037
      },
      "index": 0,
      "pass": false,
      "volume": {
        "deviation_pct": 1.3946328269365016,
        "original_mm3": 130642.84969741658,
        "pass": false,
        "roundtripped_mm3": 132464.83776534206
      }
    }
  ],
  "tolerance_pct": 1
}

Tool calls

0
open_document
ok
2ms
args
{}
1
create
err
6ms
args
{
  "document_id": "doc_1781218502109_1",
  "type": "difference",
  "name": "Ribbed Plate",
  "params": {
    "children": [
      {
        "type": "union",
        "params": {
          "children": [
            {
              "type": "translate",
              "params": {
                "x": -60,
                "y": -40,
                "z": 10,
                "child": {
                  "type": "cube",
                  "params": {
                    "x": 120,
                    "y": 80,
                    "z": 10
                  }
                }
              }
            },
            {
              "type": "translate",
              "params": {
                "x": -60,
                "y": -28,
                "z": 0,
                "child": {
                  "type": "cube",
                  "params": {
                    "x": 120,
                    "y": 8,
                    "z": 10
                  }
                }
              }
            },
            {
              "type": "translate",
              "params": {
                "x": -60,
                "y": -4,
                "z": 0,
                "child": {
                  "type": "cube",
                  "params": {
                    "x": 120,
                    "y": 8,
                    "z": 10
                  }
                }
              }
            },
            {
              "type": "translate",
              "params": {
                "x": -60,
                "y": 20,
                "z": 0,
                "child": {
                  "type": "cube",
                  "params": {
                    "x": 120,
                    "y": 8,
                    "z": 10
                  }
                }
              }
            }
          ]
        }
      },
      {
        "type": "union",
        "params": {
          "children": [
            {
              "type": "translate",
              "params": {
                "x": 45,
                "y": 30,
                "z": 0,
                "child": {
                  "type": "cylinder",
                  "params": {
                    "r": 4,
                    "h": 20
                  }
                }
              }
            },
            {
              "type": "translate",
              "params": {
                "x": -45,
                "y": 30,
                "z": 0,
                "child": {
                  "type": "cylinder",
                  "params": {
                    "r": 4,
                    "h": 20
                  }
                }
              }
            },
            {
              "type": "translate",
              "params": {
                "x": -45,
                "y": -30,
                "z": 0,
                "child": {
                  "type": "cylinder",
                  "params": {
                    "r": 4,
                    "h": 20
                  }
                }
              }
            },
            {
              "type": "translate",
              "params": {
                "x": 45,
                "y": -30,
                "z": 0,
                "child": {
                  "type": "cylinder",
                  "params": {
                    "r": 4,
                    "h": 20
                  }
                }
              }
            }
          ]
        }
      }
    ]
  }
}
2
create_cad_loon
ok
13ms
args
{
  "source": "[let\n  plate [translate -60 -40 10 [cube 120 80 10]]\n  ribA  [translate -60 -28 0 [cube 120 8 10]]\n  ribB  [translate -60 -4  0 [cube 120 8 10]]\n  ribC  [translate -60 20  0 [cube 120 8 10]]\n  body  [union ribA [union ribB [union ribC plate]]]\n  h1 [translate  45  30 0 [cylinder 4 20]]\n  h2 [translate -45  30 0 [cylinder 4 20]]\n  h3 [translate -45 -30 0 [cylinder 4 20]]\n  h4 [translate  45 -30 0 [cylinder 4 20]]\n  holes [union h1 [union h2 [union h3 h4]]]\n  [root [difference holes body] \"steel\"]]",
  "format": "json"
}
3
create
err
3ms
args
{
  "document_id": "doc_1781218502109_1",
  "type": "cube",
  "name": "plate-raw",
  "params": {
    "x": 120,
    "y": 80,
    "z": 10
  }
}
4
create
ok
4ms
args
{
  "document_id": "doc_1781218502109_1",
  "type": "cube",
  "name": "plate-raw",
  "params": {
    "size": {
      "x": 120,
      "y": 80,
      "z": 10
    }
  }
}
5
create
ok
7ms
args
{
  "document_id": "doc_1781218502109_1",
  "type": "translate",
  "name": "plate",
  "parent_part_id": "1",
  "params": {
    "offset": {
      "x": -60,
      "y": -40,
      "z": 10
    },
    "child": 1
  }
}
6
read
ok
4ms
args
{
  "document_id": "doc_1781218502109_1"
}
7
create
ok
7ms
args
{
  "document_id": "doc_1781218502109_1",
  "type": "cube",
  "name": "ribA-raw",
  "params": {
    "size": {
      "x": 120,
      "y": 8,
      "z": 10
    }
  }
}
8
create
ok
2ms
args
{
  "document_id": "doc_1781218502109_1",
  "type": "cube",
  "name": "ribB-raw",
  "params": {
    "size": {
      "x": 120,
      "y": 8,
      "z": 10
    }
  }
}
9
create
ok
1ms
args
{
  "document_id": "doc_1781218502109_1",
  "type": "cube",
  "name": "ribC-raw",
  "params": {
    "size": {
      "x": 120,
      "y": 8,
      "z": 10
    }
  }
}
10
create
ok
4ms
args
{
  "document_id": "doc_1781218502109_1",
  "type": "translate",
  "name": "ribA",
  "parent_part_id": "3",
  "params": {
    "offset": {
      "x": -60,
      "y": -28,
      "z": 0
    },
    "child": 3
  }
}
11
create
ok
2ms
args
{
  "document_id": "doc_1781218502109_1",
  "type": "translate",
  "name": "ribB",
  "parent_part_id": "4",
  "params": {
    "offset": {
      "x": -60,
      "y": -4,
      "z": 0
    },
    "child": 4
  }
}
12
create
ok
1ms
args
{
  "document_id": "doc_1781218502109_1",
  "type": "translate",
  "name": "ribC",
  "parent_part_id": "5",
  "params": {
    "offset": {
      "x": -60,
      "y": 20,
      "z": 0
    },
    "child": 5
  }
}
13
create
ok
4ms
args
{
  "document_id": "doc_1781218502109_1",
  "type": "union",
  "name": "body",
  "params": {
    "left": 2,
    "right": 6
  }
}
14
read
ok
3ms
args
{
  "document_id": "doc_1781218502109_1"
}
15
get_document
ok
2ms
args
{
  "document_id": "doc_1781218502109_1"
}
16
create
ok
3ms
args
{
  "document_id": "doc_1781218502109_1",
  "type": "union",
  "name": "body2",
  "params": {
    "left": 9,
    "right": 7
  }
}
17
create
ok
3ms
args
{
  "document_id": "doc_1781218502109_1",
  "type": "union",
  "name": "body3",
  "params": {
    "left": 10,
    "right": 8
  }
}
18
create
err
2ms
args
{
  "document_id": "doc_1781218502109_1",
  "type": "cylinder",
  "name": "hole-raw",
  "params": {
    "radius": 4,
    "height": 20
  }
}
19
create
ok
3ms
args
{
  "document_id": "doc_1781218502109_1",
  "type": "cylinder",
  "name": "hole1-raw",
  "params": {
    "radius": 4,
    "height": 20,
    "segments": 64
  }
}
20
create
ok
1ms
args
{
  "document_id": "doc_1781218502109_1",
  "type": "cylinder",
  "name": "hole2-raw",
  "params": {
    "radius": 4,
    "height": 20,
    "segments": 64
  }
}
21
create
ok
1ms
args
{
  "document_id": "doc_1781218502109_1",
  "type": "cylinder",
  "name": "hole3-raw",
  "params": {
    "radius": 4,
    "height": 20,
    "segments": 64
  }
}
22
create
ok
1ms
args
{
  "document_id": "doc_1781218502109_1",
  "type": "cylinder",
  "name": "hole4-raw",
  "params": {
    "radius": 4,
    "height": 20,
    "segments": 64
  }
}
23
create
ok
3ms
args
{
  "document_id": "doc_1781218502109_1",
  "type": "translate",
  "name": "hole1",
  "parent_part_id": "12",
  "params": {
    "offset": {
      "x": 45,
      "y": 30,
      "z": 0
    },
    "child": 12
  }
}
24
create
ok
1ms
args
{
  "document_id": "doc_1781218502109_1",
  "type": "translate",
  "name": "hole2",
  "parent_part_id": "13",
  "params": {
    "offset": {
      "x": -45,
      "y": 30,
      "z": 0
    },
    "child": 13
  }
}
25
create
ok
1ms
args
{
  "document_id": "doc_1781218502109_1",
  "type": "translate",
  "name": "hole3",
  "parent_part_id": "14",
  "params": {
    "offset": {
      "x": -45,
      "y": -30,
      "z": 0
    },
    "child": 14
  }
}
26
create
ok
1ms
args
{
  "document_id": "doc_1781218502109_1",
  "type": "translate",
  "name": "hole4",
  "parent_part_id": "15",
  "params": {
    "offset": {
      "x": 45,
      "y": -30,
      "z": 0
    },
    "child": 15
  }
}
27
create
ok
3ms
args
{
  "document_id": "doc_1781218502109_1",
  "type": "union",
  "name": "holes12",
  "params": {
    "left": 16,
    "right": 17
  }
}
28
create
ok
3ms
args
{
  "document_id": "doc_1781218502109_1",
  "type": "union",
  "name": "holes123",
  "params": {
    "left": 20,
    "right": 18
  }
}
29
create
ok
2ms
args
{
  "document_id": "doc_1781218502109_1",
  "type": "union",
  "name": "holes-all",
  "params": {
    "left": 21,
    "right": 19
  }
}
30
create
ok
3ms
args
{
  "document_id": "doc_1781218502109_1",
  "type": "difference",
  "name": "RibbedPlate",
  "params": {
    "left": 11,
    "right": 22
  }
}
31
get_document
ok
2ms
args
{
  "document_id": "doc_1781218502109_1"
}
32
delete
ok
4ms
args
{
  "document_id": "doc_1781218502109_1",
  "part_id": "1"
}
33
delete
ok
1ms
args
{
  "document_id": "doc_1781218502109_1",
  "part_id": "2"
}
34
delete
ok
1ms
args
{
  "document_id": "doc_1781218502109_1",
  "part_id": "3"
}
35
delete
ok
1ms
args
{
  "document_id": "doc_1781218502109_1",
  "part_id": "4"
}
36
delete
ok
1ms
args
{
  "document_id": "doc_1781218502109_1",
  "part_id": "5"
}
37
delete
ok
1ms
args
{
  "document_id": "doc_1781218502109_1",
  "part_id": "6"
}
38
delete
ok
0ms
args
{
  "document_id": "doc_1781218502109_1",
  "part_id": "7"
}
39
delete
ok
0ms
args
{
  "document_id": "doc_1781218502109_1",
  "part_id": "8"
}
40
delete
ok
0ms
args
{
  "document_id": "doc_1781218502109_1",
  "part_id": "9"
}
41
delete
ok
0ms
args
{
  "document_id": "doc_1781218502109_1",
  "part_id": "10"
}
42
delete
ok
0ms
args
{
  "document_id": "doc_1781218502109_1",
  "part_id": "11"
}
43
delete
ok
0ms
args
{
  "document_id": "doc_1781218502109_1",
  "part_id": "12"
}
44
delete
ok
1ms
args
{
  "document_id": "doc_1781218502109_1",
  "part_id": "13"
}
45
delete
ok
0ms
args
{
  "document_id": "doc_1781218502109_1",
  "part_id": "14"
}
46
delete
ok
0ms
args
{
  "document_id": "doc_1781218502109_1",
  "part_id": "15"
}
47
delete
ok
0ms
args
{
  "document_id": "doc_1781218502109_1",
  "part_id": "16"
}
48
delete
ok
0ms
args
{
  "document_id": "doc_1781218502109_1",
  "part_id": "17"
}
49
delete
ok
0ms
args
{
  "document_id": "doc_1781218502109_1",
  "part_id": "18"
}
50
delete
ok
0ms
args
{
  "document_id": "doc_1781218502109_1",
  "part_id": "19"
}
51
delete
ok
0ms
args
{
  "document_id": "doc_1781218502109_1",
  "part_id": "20"
}
52
delete
ok
0ms
args
{
  "document_id": "doc_1781218502109_1",
  "part_id": "21"
}
53
delete
ok
0ms
args
{
  "document_id": "doc_1781218502109_1",
  "part_id": "22"
}
54
get_document
ok
2ms
args
{
  "document_id": "doc_1781218502109_1"
}
55
render_view
ok
131ms
args
{
  "document_id": "doc_1781218502109_1"
}
56
get_document
ok
2ms
args
{
  "document_id": "doc_1781218502109_1"
}

What the model built

isometric render via vcad-render · the model's actual .vcad output, faceted at 28 segments per cylinder · download 20260611T225501Z-f9e0.vcad

.vcad source

{
  "version": "0.1",
  "nodes": {
    "1": {
      "id": 1,
      "name": "plate-raw",
      "op": {
        "type": "Cube",
        "size": {
          "x": 120,
          "y": 80,
          "z": 10
        }
      }
    },
    "2": {
      "id": 2,
      "name": "plate",
      "op": {
        "type": "Translate",
        "child": 1,
        "offset": {
          "x": -60,
          "y": -40,
          "z": 10
        }
      }
    },
    "3": {
      "id": 3,
      "name": "ribA-raw",
      "op": {
        "type": "Cube",
        "size": {
          "x": 120,
          "y": 8,
          "z": 10
        }
      }
    },
    "4": {
      "id": 4,
      "name": "ribB-raw",
      "op": {
        "type": "Cube",
        "size": {
          "x": 120,
          "y": 8,
          "z": 10
        }
      }
    },
    "5": {
      "id": 5,
      "name": "ribC-raw",
      "op": {
        "type": "Cube",
        "size": {
          "x": 120,
          "y": 8,
          "z": 10
        }
      }
    },
    "6": {
      "id": 6,
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}
mecheval · an evaluation suite by Municipal Robotics
sibling project: vcad. · github

generated 2026-06-19T01:47:56.236Z · static site, regenerate with npm run build -w @mecheval/leaderboard