← mecheval / run / a3-hex-nut-01 / claude-mcp-claude-opus-4-7 / 20260611T181147Z-5312

run 20260611T181147Z-5312

a3-hex-nut-01 · claude-mcp-claude-opus-4-7

Summary

statusfail
score0.50 (3/6)
submissionself-run
modelclaude-mcp-claude-opus-4-7 (anthropic)
started2026-06-11T18:11:47.789Z
ended2026-06-11T18:13:43.107Z
tokens623,623 in · 6,370 out · 629,993 total
wallclock115.3s
tool calls35
task hash7a7b681fbc898d3a…
vcad hashbfa39ccc083d8d16…

Prompt

Make a hexagonal nut. The outer cross-section is a regular hexagon with flat-to-flat distance 19mm (so 19mm wrench fits), oriented so two flats are parallel to the X axis (the top and bottom of the hex). Height 8mm along Z, base on the XY plane (z = 0 to z = 8). Concentric central through-hole of diameter 10mm, axis along Z. Output a single solid.

Checks

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

details: {
  "root_count": 2,
  "solids_produced": 2
}
1
bbox
pass
params + details 
params: {
  "type": "bbox",
  "min": [
    -10.97,
    -9.5,
    0
  ],
  "max": [
    10.97,
    9.5,
    8
  ],
  "tolerance_mm": 0.2
}

details: {
  "actual_max": [
    10.9697,
    9.5,
    8
  ],
  "actual_min": [
    -10.9697,
    -9.5,
    0
  ],
  "deviation_max": [
    -0.0003000000000010772,
    0,
    0
  ],
  "deviation_min": [
    0.0003000000000010772,
    0,
    0
  ],
  "max_abs_deviation_mm": 0.0003000000000010772,
  "tolerance_mm": 0.2
}
2
mass_props
fail
volume off by 67.1%
params + details 
params: {
  "type": "mass_props",
  "volume_mm3": 1872.62,
  "tolerance_pct": 1.5
}

details: {
  "volume": {
    "actual_mm3": 3128.408878606042,
    "deviation_pct": 67.06052902382983,
    "pass": false,
    "spec_mm3": 1872.62,
    "tolerance_pct": 1.5
  }
}
3
hole_count
fail
found 0/1 holes of ⌀10mm
params + details 
params: {
  "type": "hole_count",
  "diameter_mm": 10,
  "expected": 1,
  "diameter_tolerance_mm": 0.1
}

details: {
  "actual": 0,
  "diameter_mm": 10,
  "diameter_tolerance_mm": 0.1,
  "expected": 1,
  "found": []
}
4
hole_positions
fail
1/1 mispositioned
params + details 
params: {
  "type": "hole_positions",
  "diameter_mm": 10,
  "positions": [
    [
      0,
      0,
      0
    ]
  ],
  "tolerance_mm": 0.15
}

details: {
  "diameter_mm": 10,
  "per_expected": [
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        0,
        0
      ]
    }
  ],
  "tolerance_mm": 0.15,
  "unmatched_extras": []
}
5
step_roundtrip
pass
params + details 
params: {
  "type": "step_roundtrip",
  "tolerance_pct": 1.5
}

details: {
  "per_solid": [
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          10.9697,
          9.5,
          8
        ],
        "original_min": [
          -10.9697,
          -9.5,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          10.9697,
          9.5,
          8
        ],
        "roundtripped_min": [
          -10.9697,
          -9.5,
          0
        ],
        "tolerance_mm": 0.45158153890631975
      },
      "index": 0,
      "pass": true,
      "volume": {
        "deviation_pct": 0,
        "original_mm3": 2501.099178314209,
        "pass": true,
        "roundtripped_mm3": 2501.099178314209
      }
    },
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          5,
          5,
          8
        ],
        "original_min": [
          -5,
          -5,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          5,
          5,
          8
        ],
        "roundtripped_min": [
          -5,
          -5,
          0
        ],
        "tolerance_mm": 0.24372115213907883
      },
      "index": 1,
      "pass": true,
      "volume": {
        "deviation_pct": 0.4815275502572024,
        "original_mm3": 627.3097002918329,
        "pass": true,
        "roundtripped_mm3": 624.2890312594918
      }
    }
  ],
  "tolerance_pct": 1.5
}

Tool calls

0
open_document
ok
1ms
args
{}
1
create
err
7ms
args
{
  "document_id": "doc_1781201507959_1",
  "type": "sketch_2_d",
  "name": "Hex Outline",
  "params": {
    "origin": [
      0,
      0,
      0
    ],
    "x_axis": [
      1,
      0,
      0
    ],
    "y_axis": [
      0,
      1,
      0
    ],
    "segments": [
      {
        "type": "line",
        "x1": 10.9697,
        "y1": 0,
        "x2": 5.4849,
        "y2": 9.5
      },
      {
        "type": "line",
        "x1": 5.4849,
        "y1": 9.5,
        "x2": -5.4849,
        "y2": 9.5
      },
      {
        "type": "line",
        "x1": -5.4849,
        "y1": 9.5,
        "x2": -10.9697,
        "y2": 0
      },
      {
        "type": "line",
        "x1": -10.9697,
        "y1": 0,
        "x2": -5.4849,
        "y2": -9.5
      },
      {
        "type": "line",
        "x1": -5.4849,
        "y1": -9.5,
        "x2": 5.4849,
        "y2": -9.5
      },
      {
        "type": "line",
        "x1": 5.4849,
        "y1": -9.5,
        "x2": 10.9697,
        "y2": 0
      }
    ]
  }
}
2
read
ok
4ms
args
{
  "document_id": "doc_1781201507959_1"
}
3
create
err
4ms
args
{
  "document_id": "doc_1781201507959_1",
  "type": "sketch_2_d",
  "name": "Hex Outline",
  "params": {
    "origin": [
      0,
      0,
      0
    ],
    "x_axis": [
      1,
      0,
      0
    ],
    "y_axis": [
      0,
      1,
      0
    ],
    "segments": [
      {
        "Line": {
          "x1": 10.9697,
          "y1": 0,
          "x2": 5.4849,
          "y2": 9.5
        }
      },
      {
        "Line": {
          "x1": 5.4849,
          "y1": 9.5,
          "x2": -5.4849,
          "y2": 9.5
        }
      },
      {
        "Line": {
          "x1": -5.4849,
          "y1": 9.5,
          "x2": -10.9697,
          "y2": 0
        }
      },
      {
        "Line": {
          "x1": -10.9697,
          "y1": 0,
          "x2": -5.4849,
          "y2": -9.5
        }
      },
      {
        "Line": {
          "x1": -5.4849,
          "y1": -9.5,
          "x2": 5.4849,
          "y2": -9.5
        }
      },
      {
        "Line": {
          "x1": 5.4849,
          "y1": -9.5,
          "x2": 10.9697,
          "y2": 0
        }
      }
    ]
  }
}
4
create
err
6ms
args
{
  "document_id": "doc_1781201507959_1",
  "type": "sketch_2_d",
  "name": "Hex Outline",
  "params": {
    "origin": [
      0,
      0,
      0
    ],
    "x_axis": [
      1,
      0,
      0
    ],
    "y_axis": [
      0,
      1,
      0
    ],
    "segments": [
      {
        "type": "Line",
        "x1": 10.9697,
        "y1": 0,
        "x2": 5.4849,
        "y2": 9.5
      },
      {
        "type": "Line",
        "x1": 5.4849,
        "y1": 9.5,
        "x2": -5.4849,
        "y2": 9.5
      },
      {
        "type": "Line",
        "x1": -5.4849,
        "y1": 9.5,
        "x2": -10.9697,
        "y2": 0
      },
      {
        "type": "Line",
        "x1": -10.9697,
        "y1": 0,
        "x2": -5.4849,
        "y2": -9.5
      },
      {
        "type": "Line",
        "x1": -5.4849,
        "y1": -9.5,
        "x2": 5.4849,
        "y2": -9.5
      },
      {
        "type": "Line",
        "x1": 5.4849,
        "y1": -9.5,
        "x2": 10.9697,
        "y2": 0
      }
    ]
  }
}
5
create
err
4ms
args
{
  "document_id": "doc_1781201507959_1",
  "type": "sketch_2_d",
  "name": "Hex Outline",
  "params": {
    "origin": [
      0,
      0,
      0
    ],
    "x_axis": [
      1,
      0,
      0
    ],
    "y_axis": [
      0,
      1,
      0
    ],
    "segments": [
      {
        "type": "Line",
        "start": [
          10.9697,
          0
        ],
        "end": [
          5.4849,
          9.5
        ]
      },
      {
        "type": "Line",
        "start": [
          5.4849,
          9.5
        ],
        "end": [
          -5.4849,
          9.5
        ]
      },
      {
        "type": "Line",
        "start": [
          -5.4849,
          9.5
        ],
        "end": [
          -10.9697,
          0
        ]
      },
      {
        "type": "Line",
        "start": [
          -10.9697,
          0
        ],
        "end": [
          -5.4849,
          -9.5
        ]
      },
      {
        "type": "Line",
        "start": [
          -5.4849,
          -9.5
        ],
        "end": [
          5.4849,
          -9.5
        ]
      },
      {
        "type": "Line",
        "start": [
          5.4849,
          -9.5
        ],
        "end": [
          10.9697,
          0
        ]
      }
    ]
  }
}
6
create
ok
5ms
args
{
  "document_id": "doc_1781201507959_1",
  "type": "sketch_2_d",
  "name": "Hex Outline",
  "params": {
    "origin": [
      0,
      0,
      0
    ],
    "x_dir": [
      1,
      0,
      0
    ],
    "y_dir": [
      0,
      1,
      0
    ],
    "segments": [
      {
        "type": "Line",
        "start": [
          10.9697,
          0
        ],
        "end": [
          5.4849,
          9.5
        ]
      },
      {
        "type": "Line",
        "start": [
          5.4849,
          9.5
        ],
        "end": [
          -5.4849,
          9.5
        ]
      },
      {
        "type": "Line",
        "start": [
          -5.4849,
          9.5
        ],
        "end": [
          -10.9697,
          0
        ]
      },
      {
        "type": "Line",
        "start": [
          -10.9697,
          0
        ],
        "end": [
          -5.4849,
          -9.5
        ]
      },
      {
        "type": "Line",
        "start": [
          -5.4849,
          -9.5
        ],
        "end": [
          5.4849,
          -9.5
        ]
      },
      {
        "type": "Line",
        "start": [
          5.4849,
          -9.5
        ],
        "end": [
          10.9697,
          0
        ]
      }
    ]
  }
}
7
create
ok
9ms
args
{
  "document_id": "doc_1781201507959_1",
  "type": "extrude",
  "name": "Hex Body",
  "parent_part_id": "1",
  "params": {
    "sketch": 1,
    "direction": [
      0,
      0,
      1
    ],
    "distance": 8
  }
}
8
read
ok
4ms
args
{
  "document_id": "doc_1781201507959_1"
}
9
read
ok
2ms
args
{
  "document_id": "doc_1781201507959_1",
  "part_id": "2"
}
10
update
ok
5ms
args
{
  "document_id": "doc_1781201507959_1",
  "node_id": "2",
  "params": {
    "direction": [
      0,
      0,
      8
    ]
  }
}
11
read
ok
3ms
args
{
  "document_id": "doc_1781201507959_1",
  "part_id": "2"
}
12
render_view
ok
91ms
args
{
  "document_id": "doc_1781201507959_1"
}
13
create
err
4ms
args
{
  "document_id": "doc_1781201507959_1",
  "type": "cylinder",
  "name": "Hole",
  "params": {
    "radius": 5,
    "height": 8
  }
}
14
create
ok
3ms
args
{
  "document_id": "doc_1781201507959_1",
  "type": "cylinder",
  "name": "Hole",
  "params": {
    "radius": 5,
    "height": 8,
    "segments": 64
  }
}
15
create
err
4ms
args
{
  "document_id": "doc_1781201507959_1",
  "type": "difference",
  "name": "Nut",
  "params": {
    "subject": 2,
    "tool": 3
  }
}
16
create
ok
3ms
args
{
  "document_id": "doc_1781201507959_1",
  "type": "difference",
  "name": "Nut",
  "params": {
    "left": 2,
    "right": 3
  }
}
17
read
ok
3ms
args
{
  "document_id": "doc_1781201507959_1"
}
18
delete
ok
4ms
args
{
  "document_id": "doc_1781201507959_1",
  "part_id": "4"
}
19
delete
ok
2ms
args
{
  "document_id": "doc_1781201507959_1",
  "part_id": "3"
}
20
delete
ok
1ms
args
{
  "document_id": "doc_1781201507959_1",
  "part_id": "2"
}
21
delete
ok
0ms
args
{
  "document_id": "doc_1781201507959_1",
  "part_id": "1"
}
22
read
ok
3ms
args
{
  "document_id": "doc_1781201507959_1"
}
23
create
ok
2ms
args
{
  "document_id": "doc_1781201507959_1",
  "type": "sketch_2_d",
  "name": "Hex Outline",
  "params": {
    "origin": [
      0,
      0,
      0
    ],
    "x_dir": [
      1,
      0,
      0
    ],
    "y_dir": [
      0,
      1,
      0
    ],
    "segments": [
      {
        "type": "Line",
        "start": [
          10.9697,
          0
        ],
        "end": [
          5.4849,
          9.5
        ]
      },
      {
        "type": "Line",
        "start": [
          5.4849,
          9.5
        ],
        "end": [
          -5.4849,
          9.5
        ]
      },
      {
        "type": "Line",
        "start": [
          -5.4849,
          9.5
        ],
        "end": [
          -10.9697,
          0
        ]
      },
      {
        "type": "Line",
        "start": [
          -10.9697,
          0
        ],
        "end": [
          -5.4849,
          -9.5
        ]
      },
      {
        "type": "Line",
        "start": [
          -5.4849,
          -9.5
        ],
        "end": [
          5.4849,
          -9.5
        ]
      },
      {
        "type": "Line",
        "start": [
          5.4849,
          -9.5
        ],
        "end": [
          10.9697,
          0
        ]
      }
    ]
  }
}
24
create
ok
2ms
args
{
  "document_id": "doc_1781201507959_1",
  "type": "extrude",
  "name": "Hex Body",
  "parent_part_id": "1",
  "params": {
    "sketch": 1,
    "direction": [
      0,
      0,
      8
    ]
  }
}
25
read
ok
3ms
args
{
  "document_id": "doc_1781201507959_1"
}
26
read
ok
2ms
args
{
  "document_id": "doc_1781201507959_1",
  "part_id": "1"
}
27
read
ok
4ms
args
{
  "document_id": "doc_1781201507959_1",
  "part_id": "2"
}
28
delete
ok
3ms
args
{
  "document_id": "doc_1781201507959_1",
  "part_id": "1"
}
29
read
ok
3ms
args
{
  "document_id": "doc_1781201507959_1"
}
30
create
ok
3ms
args
{
  "document_id": "doc_1781201507959_1",
  "type": "cylinder",
  "name": "Hole",
  "parent_part_id": "2",
  "params": {
    "radius": 5,
    "height": 8,
    "segments": 64
  }
}
31
read
ok
3ms
args
{
  "document_id": "doc_1781201507959_1"
}
32
read
ok
2ms
args
{
  "document_id": "doc_1781201507959_1",
  "part_id": "3"
}
33
read
ok
3ms
args
{
  "document_id": "doc_1781201507959_1",
  "part_id": "2"
}
34
get_document
ok
1ms
args
{
  "document_id": "doc_1781201507959_1"
}

What the model built

isometric render via vcad-render · the model's actual .vcad output, faceted at 28 segments per cylinder · download 20260611T181147Z-5312.vcad

.vcad source

{
  "version": "0.1",
  "nodes": {
    "1": {
      "id": 1,
      "name": "Hex Outline",
      "op": {
        "type": "Sketch2D",
        "origin": {
          "x": 0,
          "y": 0,
          "z": 0
        },
        "x_dir": {
          "x": 1,
          "y": 0,
          "z": 0
        },
        "y_dir": {
          "x": 0,
          "y": 1,
          "z": 0
        },
        "segments": [
          {
            "type": "Line",
            "start": {
              "x": 10.9697,
              "y": 0
            },
            "end": {
              "x": 5.4849,
              "y": 9.5
            }
          },
          {
            "type": "Line",
            "start": {
              "x": 5.4849,
              "y": 9.5
            },
            "end": {
              "x": -5.4849,
              "y": 9.5
            }
          },
          {
            "type": "Line",
            "start": {
              "x": -5.4849,
              "y": 9.5
            },
            "end": {
              "x": -10.9697,
              "y": 0
            }
          },
          {
            "type": "Line",
            "start": {
              "x": -10.9697,
              "y": 0
            },
            "end": {
              "x": -5.4849,
              "y": -9.5
            }
          },
          {
            "type": "Line",
            "start": {
              "x": -5.4849,
              "y": -9.5
            },
            "end": {
              "x": 5.4849,
              "y": -9.5
            }
          },
          {
            "type": "Line",
            "start": {
              "x": 5.4849,
              "y": -9.5
            },
            "end": {
              "x": 10.9697,
              "y": 0
            }
          }
        ]
      }
    },
    "2": {
      "id": 2,
      "name": "Hex Body",
      "op": {
        "type": "Extrude",
        "sketch": 1,
        "direction": {
          "x": 0,
          "y": 0,
          "z": 8
        }
      }
    },
    "3": {
      "id": 3,
      "name": "Hole",
      "op": {
        "type": "Cylinder",
        "radius": 5,
        "height": 8,
        "segments": 64
      }
    }
  },
  "materials": {},
  "part_materials": {},
  "roots": [
    {
      "root": 2,
      "material": "default"
    },
    {
      "root": 3,
      "material": "default"
    }
  ]
}
mecheval · an evaluation suite by Municipal Robotics
sibling project: vcad. · github

generated 2026-06-19T01:47:55.873Z · static site, regenerate with npm run build -w @mecheval/leaderboard