← mecheval / run / a3-hex-nut-01 / claude-mcp-claude-opus-4-7 / 20260611T181316Z-dfee

run 20260611T181316Z-dfee

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

Summary

statusPASS
score1.00 (6/6)
submissionself-run
modelclaude-mcp-claude-opus-4-7 (anthropic)
started2026-06-11T18:13:16.761Z
ended2026-06-11T18:16:01.604Z
tokens431,068 in · 6,284 out · 437,352 total
wallclock164.8s
tool calls29
task hash7a7b681fbc898d3a…
vcad hash829e3904785b2c48…

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": 1,
  "solids_produced": 1
}
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": [
    10.969659805297852,
    9.5,
    8
  ],
  "actual_min": [
    -10.969659805297852,
    -9.5,
    0
  ],
  "deviation_max": [
    -0.000340194702149077,
    0,
    0
  ],
  "deviation_min": [
    0.000340194702149077,
    0,
    0
  ],
  "max_abs_deviation_mm": 0.000340194702149077,
  "tolerance_mm": 0.2
}
2
mass_props
pass
params + details 
params: {
  "type": "mass_props",
  "volume_mm3": 1872.62,
  "tolerance_pct": 1.5
}

details: {
  "volume": {
    "actual_mm3": 1873.7727594758235,
    "deviation_pct": 0.06155864381580814,
    "pass": true,
    "spec_mm3": 1872.62,
    "tolerance_pct": 1.5
  }
}
3
hole_count
pass
params + details 
params: {
  "type": "hole_count",
  "diameter_mm": 10,
  "expected": 1,
  "diameter_tolerance_mm": 0.1
}

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

details: {
  "diameter_mm": 10,
  "per_expected": [
    {
      "distance_mm": 0,
      "matched_hole": [
        0,
        0
      ],
      "pass": true,
      "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": [
          10.969659805297852,
          9.5,
          8
        ],
        "original_min": [
          -10.969659805297852,
          -9.5,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          10.969659805297852,
          9.5,
          8
        ],
        "roundtripped_min": [
          -10.969659805297852,
          -9.5,
          0
        ],
        "tolerance_mm": 0.4515806601478528
      },
      "index": 0,
      "pass": true,
      "volume": {
        "deviation_pct": 0.1074719089982406,
        "original_mm3": 1873.7727594758235,
        "pass": true,
        "roundtripped_mm3": 1875.7865388307212
      }
    }
  ],
  "tolerance_pct": 1.5
}

Tool calls

0
open_document
ok
1ms
args
{}
1
create
err
5ms
args
{
  "document_id": "doc_1781201596928_1",
  "type": "sketch_2_d",
  "name": "Hex Profile",
  "params": {
    "plane": {
      "origin": [
        0,
        0,
        0
      ],
      "x_axis": [
        1,
        0,
        0
      ],
      "y_axis": [
        0,
        1,
        0
      ]
    },
    "segments": [
      {
        "type": "line",
        "start": [
          10.96966,
          0
        ],
        "end": [
          5.48483,
          9.5
        ]
      },
      {
        "type": "line",
        "start": [
          5.48483,
          9.5
        ],
        "end": [
          -5.48483,
          9.5
        ]
      },
      {
        "type": "line",
        "start": [
          -5.48483,
          9.5
        ],
        "end": [
          -10.96966,
          0
        ]
      },
      {
        "type": "line",
        "start": [
          -10.96966,
          0
        ],
        "end": [
          -5.48483,
          -9.5
        ]
      },
      {
        "type": "line",
        "start": [
          -5.48483,
          -9.5
        ],
        "end": [
          5.48483,
          -9.5
        ]
      },
      {
        "type": "line",
        "start": [
          5.48483,
          -9.5
        ],
        "end": [
          10.96966,
          0
        ]
      }
    ]
  }
}
2
create_cad_loon
err
11ms
args
{
  "source": "[let\n  [hex [sketch 0 0 0  1 0 0  0 1 0\n    #[[line 10.96966 0 5.48483 9.5]\n      [line 5.48483 9.5 -5.48483 9.5]\n      [line -5.48483 9.5 -10.96966 0]\n      [line -10.96966 0 -5.48483 -9.5]\n      [line -5.48483 -9.5 5.48483 -9.5]\n      [line 5.48483 -9.5 10.96966 0]]]]\n  [body [extrude 0 0 8 hex]]\n  [hole [translate 0 0 -1 [cylinder 5 10]]]\n  [root [difference hole body] \"steel\"]]"
}
3
create_cad_loon
ok
11ms
args
{
  "source": "[root\n  [pipe\n    [sketch 0 0 0  1 0 0  0 1 0\n      #[[line 10.96966 0 5.48483 9.5]\n        [line 5.48483 9.5 -5.48483 9.5]\n        [line -5.48483 9.5 -10.96966 0]\n        [line -10.96966 0 -5.48483 -9.5]\n        [line -5.48483 -9.5 5.48483 -9.5]\n        [line 5.48483 -9.5 10.96966 0]]]\n    [extrude 0 0 8]\n    [difference [translate 0 0 -1 [cylinder 5 10]]]]\n  \"steel\"]"
}
4
create
err
6ms
args
{
  "document_id": "doc_1781201596928_1",
  "type": "sketch_2_d",
  "name": "Hex Profile",
  "params": {
    "plane": {
      "origin": [
        0,
        0,
        0
      ],
      "x_axis": [
        1,
        0,
        0
      ],
      "y_axis": [
        0,
        1,
        0
      ]
    },
    "segments": [
      {
        "Line": {
          "start": [
            10.96966,
            0
          ],
          "end": [
            5.48483,
            9.5
          ]
        }
      },
      {
        "Line": {
          "start": [
            5.48483,
            9.5
          ],
          "end": [
            -5.48483,
            9.5
          ]
        }
      },
      {
        "Line": {
          "start": [
            -5.48483,
            9.5
          ],
          "end": [
            -10.96966,
            0
          ]
        }
      },
      {
        "Line": {
          "start": [
            -10.96966,
            0
          ],
          "end": [
            -5.48483,
            -9.5
          ]
        }
      },
      {
        "Line": {
          "start": [
            -5.48483,
            -9.5
          ],
          "end": [
            5.48483,
            -9.5
          ]
        }
      },
      {
        "Line": {
          "start": [
            5.48483,
            -9.5
          ],
          "end": [
            10.96966,
            0
          ]
        }
      }
    ]
  }
}
5
create
err
3ms
args
{
  "document_id": "doc_1781201596928_1",
  "type": "sketch_2_d",
  "name": "Hex Profile",
  "params": {
    "plane": {
      "origin": [
        0,
        0,
        0
      ],
      "x_axis": [
        1,
        0,
        0
      ],
      "y_axis": [
        0,
        1,
        0
      ]
    },
    "segments": [
      {
        "type": "Line",
        "start": [
          10.96966,
          0
        ],
        "end": [
          5.48483,
          9.5
        ]
      },
      {
        "type": "Line",
        "start": [
          5.48483,
          9.5
        ],
        "end": [
          -5.48483,
          9.5
        ]
      },
      {
        "type": "Line",
        "start": [
          -5.48483,
          9.5
        ],
        "end": [
          -10.96966,
          0
        ]
      },
      {
        "type": "Line",
        "start": [
          -10.96966,
          0
        ],
        "end": [
          -5.48483,
          -9.5
        ]
      },
      {
        "type": "Line",
        "start": [
          -5.48483,
          -9.5
        ],
        "end": [
          5.48483,
          -9.5
        ]
      },
      {
        "type": "Line",
        "start": [
          5.48483,
          -9.5
        ],
        "end": [
          10.96966,
          0
        ]
      }
    ]
  }
}
6
create
err
2ms
args
{
  "document_id": "doc_1781201596928_1",
  "type": "sketch_2_d",
  "name": "Hex Profile",
  "params": {
    "origin": [
      0,
      0,
      0
    ],
    "x_axis": [
      1,
      0,
      0
    ],
    "y_axis": [
      0,
      1,
      0
    ],
    "segments": [
      {
        "type": "Line",
        "start": [
          10.96966,
          0
        ],
        "end": [
          5.48483,
          9.5
        ]
      },
      {
        "type": "Line",
        "start": [
          5.48483,
          9.5
        ],
        "end": [
          -5.48483,
          9.5
        ]
      },
      {
        "type": "Line",
        "start": [
          -5.48483,
          9.5
        ],
        "end": [
          -10.96966,
          0
        ]
      },
      {
        "type": "Line",
        "start": [
          -10.96966,
          0
        ],
        "end": [
          -5.48483,
          -9.5
        ]
      },
      {
        "type": "Line",
        "start": [
          -5.48483,
          -9.5
        ],
        "end": [
          5.48483,
          -9.5
        ]
      },
      {
        "type": "Line",
        "start": [
          5.48483,
          -9.5
        ],
        "end": [
          10.96966,
          0
        ]
      }
    ]
  }
}
7
create
ok
6ms
args
{
  "document_id": "doc_1781201596928_1",
  "type": "sketch_2_d",
  "name": "Hex Profile",
  "params": {
    "origin": [
      0,
      0,
      0
    ],
    "x_dir": [
      1,
      0,
      0
    ],
    "y_dir": [
      0,
      1,
      0
    ],
    "segments": [
      {
        "type": "Line",
        "start": [
          10.96966,
          0
        ],
        "end": [
          5.48483,
          9.5
        ]
      },
      {
        "type": "Line",
        "start": [
          5.48483,
          9.5
        ],
        "end": [
          -5.48483,
          9.5
        ]
      },
      {
        "type": "Line",
        "start": [
          -5.48483,
          9.5
        ],
        "end": [
          -10.96966,
          0
        ]
      },
      {
        "type": "Line",
        "start": [
          -10.96966,
          0
        ],
        "end": [
          -5.48483,
          -9.5
        ]
      },
      {
        "type": "Line",
        "start": [
          -5.48483,
          -9.5
        ],
        "end": [
          5.48483,
          -9.5
        ]
      },
      {
        "type": "Line",
        "start": [
          5.48483,
          -9.5
        ],
        "end": [
          10.96966,
          0
        ]
      }
    ]
  }
}
8
create
err
7ms
args
{
  "document_id": "doc_1781201596928_1",
  "type": "extrude",
  "name": "Hex Body",
  "parent_part_id": "1",
  "params": {
    "direction": [
      0,
      0,
      8
    ]
  }
}
9
create
err
2ms
args
{
  "document_id": "doc_1781201596928_1",
  "type": "cylinder",
  "name": "Hole",
  "params": {
    "radius": 5,
    "height": 10
  }
}
10
read
ok
4ms
args
{
  "document_id": "doc_1781201596928_1"
}
11
create
ok
3ms
args
{
  "document_id": "doc_1781201596928_1",
  "type": "extrude",
  "name": "Hex Body",
  "parent_part_id": "1",
  "params": {
    "sketch": 1,
    "direction": [
      0,
      0,
      8
    ]
  }
}
12
create
ok
3ms
args
{
  "document_id": "doc_1781201596928_1",
  "type": "cylinder",
  "name": "Hole Cylinder",
  "params": {
    "radius": 5,
    "height": 10,
    "segments": 64
  }
}
13
create
err
5ms
args
{
  "document_id": "doc_1781201596928_1",
  "type": "translate",
  "name": "Hole Position",
  "parent_part_id": "3",
  "params": {
    "offset": [
      0,
      0,
      -1
    ]
  }
}
14
read
ok
3ms
args
{
  "document_id": "doc_1781201596928_1",
  "part_id": "3"
}
15
create
ok
3ms
args
{
  "document_id": "doc_1781201596928_1",
  "type": "translate",
  "name": "Hole Position",
  "parent_part_id": "3",
  "params": {
    "child": 3,
    "offset": [
      0,
      0,
      -1
    ]
  }
}
16
create
err
4ms
args
{
  "document_id": "doc_1781201596928_1",
  "type": "difference",
  "name": "Nut",
  "parent_part_id": "2",
  "params": {
    "base": 2,
    "tools": [
      4
    ]
  }
}
17
create
ok
1ms
args
{
  "document_id": "doc_1781201596928_1",
  "type": "difference",
  "name": "Nut",
  "parent_part_id": "2",
  "params": {
    "left": 2,
    "right": 4
  }
}
18
read
ok
2ms
args
{
  "document_id": "doc_1781201596928_1"
}
19
inspect_cad
ok
32ms
args
{
  "document_id": "doc_1781201596928_1"
}
20
render_view
ok
89ms
args
{
  "document_id": "doc_1781201596928_1"
}
21
read
ok
1ms
args
{
  "document_id": "doc_1781201596928_1",
  "part_id": "5"
}
22
delete
ok
2ms
args
{
  "document_id": "doc_1781201596928_1",
  "part_id": "1"
}
23
delete
ok
1ms
args
{
  "document_id": "doc_1781201596928_1",
  "part_id": "2"
}
24
delete
ok
1ms
args
{
  "document_id": "doc_1781201596928_1",
  "part_id": "3"
}
25
delete
ok
0ms
args
{
  "document_id": "doc_1781201596928_1",
  "part_id": "4"
}
26
inspect_cad
ok
4ms
args
{
  "document_id": "doc_1781201596928_1"
}
27
render_view
ok
85ms
args
{
  "document_id": "doc_1781201596928_1"
}
28
get_document
ok
2ms
args
{
  "document_id": "doc_1781201596928_1"
}

What the model built

isometric render via vcad-render · the model's actual .vcad output, faceted at 28 segments per cylinder · download 20260611T181316Z-dfee.vcad

.vcad source

{
  "version": "0.1",
  "nodes": {
    "1": {
      "id": 1,
      "name": "Hex Profile",
      "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": 10.96966,
              "y": 0
            },
            "end": {
              "x": 5.48483,
              "y": 9.5
            }
          },
          {
            "type": "Line",
            "start": {
              "x": 5.48483,
              "y": 9.5
            },
            "end": {
              "x": -5.48483,
              "y": 9.5
            }
          },
          {
            "type": "Line",
            "start": {
              "x": -5.48483,
              "y": 9.5
            },
            "end": {
              "x": -10.96966,
              "y": 0
            }
          },
          {
            "type": "Line",
            "start": {
              "x": -10.96966,
              "y": 0
            },
            "end": {
              "x": -5.48483,
              "y": -9.5
            }
          },
          {
            "type": "Line",
            "start": {
              "x": -5.48483,
              "y": -9.5
            },
            "end": {
              "x": 5.48483,
              "y": -9.5
            }
          },
          {
            "type": "Line",
            "start": {
              "x": 5.48483,
              "y": -9.5
            },
            "end": {
              "x": 10.96966,
              "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 Cylinder",
      "op": {
        "type": "Cylinder",
        "radius": 5,
        "height": 10,
        "segments": 64
      }
    },
    "4": {
      "id": 4,
      "name": "Hole Position",
      "op": {
        "type": "Translate",
        "child": 3,
        "offset": {
          "x": 0,
          "y": 0,
          "z": -1
        }
      }
    },
    "5": {
      "id": 5,
      "name": "Nut",
      "op": {
        "type": "Difference",
        "left": 2,
        "right": 4
      }
    }
  },
  "materials": {},
  "part_materials": {},
  "roots": [
    {
      "root": 5,
      "material": "default"
    }
  ]
}
mecheval · an evaluation suite by Municipal Robotics
sibling project: vcad. · github

generated 2026-06-19T01:47:55.875Z · static site, regenerate with npm run build -w @mecheval/leaderboard