← mecheval / run / a4-rounded-bar-01 / claude-mcp-claude-opus-4-7 / 20260611T222601Z-2cca

run 20260611T222601Z-2cca

a4-rounded-bar-01 · claude-mcp-claude-opus-4-7

Summary

statusPASS
score1.00 (4/4)
submissionself-run
modelclaude-mcp-claude-opus-4-7 (anthropic)
started2026-06-11T22:26:01.725Z
ended2026-06-11T22:27:38.899Z
tokens524,029 in · 5,684 out · 529,713 total
wallclock97.1s
tool calls32
task hash7d784df0d0a20935…
vcad hashd03ce9fedc917f29…

Prompt

Make a flat bar with a stadium-shaped (rectangle with semicircular ends) footprint, extruded 10mm along Z. Total end-to-end length is 80mm along X; total width is 20mm along Y. The footprint is the union of a 60mm × 20mm rectangle (x in [-30, 30], y in [-10, 10]) and two semicircles of radius 10mm centered at (-30, 0) and (30, 0). The bottom face sits on the XY plane (z = 0 to z = 10). Output a single solid (no holes or other features).

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": [
    -40,
    -10,
    0
  ],
  "max": [
    40,
    10,
    10
  ],
  "tolerance_mm": 0.2
}

details: {
  "actual_max": [
    40,
    10,
    10
  ],
  "actual_min": [
    -40,
    -10,
    0
  ],
  "deviation_max": [
    0,
    0,
    0
  ],
  "deviation_min": [
    0,
    0,
    0
  ],
  "max_abs_deviation_mm": 0,
  "tolerance_mm": 0.2
}
2
mass_props
pass
params + details 
params: {
  "type": "mass_props",
  "volume_mm3": 15141.59,
  "center_of_mass": [
    0,
    0,
    5
  ],
  "tolerance_pct": 1
}

details: {
  "center_of_mass": {
    "actual": [
      6.390801884869006e-16,
      4.403111534850693e-18,
      4.999999999999997
    ],
    "bbox_diagonal_mm": 83.06623862918075,
    "deviation": [
      6.390801884869006e-16,
      4.403111534850693e-18,
      -2.6645352591003757e-15
    ],
    "max_abs_deviation_mm": 2.6645352591003757e-15,
    "pass": true,
    "spec": [
      0,
      0,
      5
    ],
    "tolerance_mm": 0.8306623862918074
  },
  "volume": {
    "actual_mm3": 15061.467664258204,
    "deviation_pct": 0.5291540435436215,
    "pass": true,
    "spec_mm3": 15141.59,
    "tolerance_pct": 1
  }
}
3
step_roundtrip
pass
params + details 
params: {
  "type": "step_roundtrip",
  "tolerance_pct": 1
}

details: {
  "per_solid": [
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          40,
          10,
          10
        ],
        "original_min": [
          -40,
          -10,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          40,
          10,
          10
        ],
        "roundtripped_min": [
          -40,
          -10,
          0
        ],
        "tolerance_mm": 0.8306623862918074
      },
      "index": 0,
      "pass": true,
      "volume": {
        "deviation_pct": 0,
        "original_mm3": 15061.467664258204,
        "pass": true,
        "roundtripped_mm3": 15061.467664258204
      }
    }
  ],
  "tolerance_pct": 1
}

Tool calls

0
open_document
ok
2ms
args
{}
1
create
err
5ms
args
{
  "document_id": "doc_1781216761901_1",
  "type": "union",
  "name": "Stadium Bar",
  "params": {
    "children": [
      {
        "type": "translate",
        "params": {
          "x": -30,
          "y": -10,
          "z": 0,
          "child": {
            "type": "cube",
            "params": {
              "x": 60,
              "y": 20,
              "z": 10
            }
          }
        }
      },
      {
        "type": "translate",
        "params": {
          "x": -30,
          "y": 0,
          "z": 0,
          "child": {
            "type": "cylinder",
            "params": {
              "radius": 10,
              "height": 10
            }
          }
        }
      },
      {
        "type": "translate",
        "params": {
          "x": 30,
          "y": 0,
          "z": 0,
          "child": {
            "type": "cylinder",
            "params": {
              "radius": 10,
              "height": 10
            }
          }
        }
      }
    ]
  }
}
2
create_cad_loon
ok
14ms
args
{
  "source": "[root [union [translate -30 -10 0 [cube 60 20 10]] [union [translate -30 0 0 [cylinder 10 10]] [translate 30 0 0 [cylinder 10 10]]]] \"steel\"]",
  "format": "json"
}
3
create
ok
5ms
args
{
  "document_id": "doc_1781216761901_1",
  "type": "cube",
  "name": "Rect",
  "params": {
    "size": {
      "x": 60,
      "y": 20,
      "z": 10
    }
  }
}
4
read
ok
4ms
args
{
  "document_id": "doc_1781216761901_1",
  "part_id": "1"
}
5
delete
ok
3ms
args
{
  "document_id": "doc_1781216761901_1",
  "part_id": "1"
}
6
create
err
4ms
args
{
  "document_id": "doc_1781216761901_1",
  "type": "translate",
  "name": "Rect",
  "params": {
    "offset": {
      "x": -30,
      "y": -10,
      "z": 0
    },
    "child": {
      "type": "cube",
      "params": {
        "size": {
          "x": 60,
          "y": 20,
          "z": 10
        }
      }
    }
  }
}
7
create
ok
6ms
args
{
  "document_id": "doc_1781216761901_1",
  "type": "cube",
  "params": {
    "size": {
      "x": 60,
      "y": 20,
      "z": 10
    }
  }
}
8
create
ok
5ms
args
{
  "document_id": "doc_1781216761901_1",
  "type": "translate",
  "parent_part_id": "1",
  "params": {
    "offset": {
      "x": -30,
      "y": -10,
      "z": 0
    },
    "child": 1
  }
}
9
read
ok
3ms
args
{
  "document_id": "doc_1781216761901_1"
}
10
read
ok
5ms
args
{
  "document_id": "doc_1781216761901_1",
  "part_id": "2"
}
11
delete
ok
3ms
args
{
  "document_id": "doc_1781216761901_1",
  "part_id": "1"
}
12
delete
ok
1ms
args
{
  "document_id": "doc_1781216761901_1",
  "part_id": "2"
}
13
create
ok
3ms
args
{
  "document_id": "doc_1781216761901_1",
  "type": "cube",
  "params": {
    "size": {
      "x": 60,
      "y": 20,
      "z": 10
    }
  }
}
14
create
ok
3ms
args
{
  "document_id": "doc_1781216761901_1",
  "type": "translate",
  "parent_part_id": "1",
  "params": {
    "offset": {
      "x": -30,
      "y": -10,
      "z": 0
    },
    "child": 1
  }
}
15
create
err
2ms
args
{
  "document_id": "doc_1781216761901_1",
  "type": "cylinder",
  "parent_part_id": "1",
  "params": {
    "radius": 10,
    "height": 10
  }
}
16
read
ok
3ms
args
{
  "document_id": "doc_1781216761901_1"
}
17
delete
ok
3ms
args
{
  "document_id": "doc_1781216761901_1",
  "part_id": "1"
}
18
create
ok
2ms
args
{
  "document_id": "doc_1781216761901_1",
  "type": "cylinder",
  "parent_part_id": "2",
  "params": {
    "radius": 10,
    "height": 10,
    "segments": 64
  }
}
19
read
ok
2ms
args
{
  "document_id": "doc_1781216761901_1",
  "part_id": "3"
}
20
read
ok
3ms
args
{
  "document_id": "doc_1781216761901_1"
}
21
delete
ok
2ms
args
{
  "document_id": "doc_1781216761901_1",
  "part_id": "2"
}
22
delete
ok
1ms
args
{
  "document_id": "doc_1781216761901_1",
  "part_id": "3"
}
23
create
err
4ms
args
{
  "document_id": "doc_1781216761901_1",
  "type": "sketch_2_d",
  "name": "Stadium Sketch",
  "params": {
    "origin": {
      "x": 0,
      "y": 0,
      "z": 0
    },
    "x_axis": {
      "x": 1,
      "y": 0,
      "z": 0
    },
    "y_axis": {
      "x": 0,
      "y": 1,
      "z": 0
    },
    "segments": [
      {
        "type": "line",
        "start": {
          "x": -30,
          "y": -10
        },
        "end": {
          "x": 30,
          "y": -10
        }
      },
      {
        "type": "arc",
        "start": {
          "x": 30,
          "y": -10
        },
        "end": {
          "x": 30,
          "y": 10
        },
        "center": {
          "x": 30,
          "y": 0
        },
        "ccw": true
      },
      {
        "type": "line",
        "start": {
          "x": 30,
          "y": 10
        },
        "end": {
          "x": -30,
          "y": 10
        }
      },
      {
        "type": "arc",
        "start": {
          "x": -30,
          "y": 10
        },
        "end": {
          "x": -30,
          "y": -10
        },
        "center": {
          "x": -30,
          "y": 0
        },
        "ccw": true
      }
    ]
  }
}
24
create
err
4ms
args
{
  "document_id": "doc_1781216761901_1",
  "type": "sketch_2_d",
  "name": "Stadium Sketch",
  "params": {
    "origin": {
      "x": 0,
      "y": 0,
      "z": 0
    },
    "x_axis": {
      "x": 1,
      "y": 0,
      "z": 0
    },
    "y_axis": {
      "x": 0,
      "y": 1,
      "z": 0
    },
    "segments": [
      {
        "type": "Line",
        "start": {
          "x": -30,
          "y": -10
        },
        "end": {
          "x": 30,
          "y": -10
        }
      },
      {
        "type": "Arc",
        "start": {
          "x": 30,
          "y": -10
        },
        "end": {
          "x": 30,
          "y": 10
        },
        "center": {
          "x": 30,
          "y": 0
        },
        "ccw": true
      },
      {
        "type": "Line",
        "start": {
          "x": 30,
          "y": 10
        },
        "end": {
          "x": -30,
          "y": 10
        }
      },
      {
        "type": "Arc",
        "start": {
          "x": -30,
          "y": 10
        },
        "end": {
          "x": -30,
          "y": -10
        },
        "center": {
          "x": -30,
          "y": 0
        },
        "ccw": true
      }
    ]
  }
}
25
create
ok
3ms
args
{
  "document_id": "doc_1781216761901_1",
  "type": "sketch_2_d",
  "name": "Stadium Sketch",
  "params": {
    "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": -30,
          "y": -10
        },
        "end": {
          "x": 30,
          "y": -10
        }
      },
      {
        "type": "Arc",
        "start": {
          "x": 30,
          "y": -10
        },
        "end": {
          "x": 30,
          "y": 10
        },
        "center": {
          "x": 30,
          "y": 0
        },
        "ccw": true
      },
      {
        "type": "Line",
        "start": {
          "x": 30,
          "y": 10
        },
        "end": {
          "x": -30,
          "y": 10
        }
      },
      {
        "type": "Arc",
        "start": {
          "x": -30,
          "y": 10
        },
        "end": {
          "x": -30,
          "y": -10
        },
        "center": {
          "x": -30,
          "y": 0
        },
        "ccw": true
      }
    ]
  }
}
26
create
ok
5ms
args
{
  "document_id": "doc_1781216761901_1",
  "type": "extrude",
  "name": "Stadium Bar",
  "parent_part_id": "1",
  "params": {
    "direction": {
      "x": 0,
      "y": 0,
      "z": 10
    },
    "sketch": 1
  }
}
27
read
ok
2ms
args
{
  "document_id": "doc_1781216761901_1"
}
28
read
ok
3ms
args
{
  "document_id": "doc_1781216761901_1",
  "part_id": "2"
}
29
delete
ok
4ms
args
{
  "document_id": "doc_1781216761901_1",
  "part_id": "1"
}
30
render_view
ok
95ms
args
{
  "document_id": "doc_1781216761901_1"
}
31
get_document
ok
2ms
args
{
  "document_id": "doc_1781216761901_1"
}

What the model built

isometric render via vcad-render · the model's actual .vcad output, faceted at 28 segments per cylinder · download 20260611T222601Z-2cca.vcad

.vcad source

{
  "version": "0.1",
  "nodes": {
    "1": {
      "id": 1,
      "name": "Stadium Sketch",
      "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": -30,
              "y": -10
            },
            "end": {
              "x": 30,
              "y": -10
            }
          },
          {
            "type": "Arc",
            "start": {
              "x": 30,
              "y": -10
            },
            "end": {
              "x": 30,
              "y": 10
            },
            "center": {
              "x": 30,
              "y": 0
            },
            "ccw": true
          },
          {
            "type": "Line",
            "start": {
              "x": 30,
              "y": 10
            },
            "end": {
              "x": -30,
              "y": 10
            }
          },
          {
            "type": "Arc",
            "start": {
              "x": -30,
              "y": 10
            },
            "end": {
              "x": -30,
              "y": -10
            },
            "center": {
              "x": -30,
              "y": 0
            },
            "ccw": true
          }
        ]
      }
    },
    "2": {
      "id": 2,
      "name": "Stadium Bar",
      "op": {
        "type": "Extrude",
        "sketch": 1,
        "direction": {
          "x": 0,
          "y": 0,
          "z": 10
        }
      }
    }
  },
  "materials": {},
  "part_materials": {},
  "roots": [
    {
      "root": 2,
      "material": "default"
    }
  ]
}
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sibling project: vcad. · github

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