← mecheval / run / a4-slotted-bracket-01 / claude-mcp-claude-opus-4-7 / 20260611T222948Z-2dca

run 20260611T222948Z-2dca

a4-slotted-bracket-01 · claude-mcp-claude-opus-4-7

Summary

statusfail
score0.83 (5/6)
submissionself-run
modelclaude-mcp-claude-opus-4-7 (anthropic)
started2026-06-11T22:29:48.474Z
ended2026-06-11T22:31:41.825Z
tokens420,741 in · 5,226 out · 425,967 total
wallclock113.3s
tool calls35
task hash42dec6ce3ad22666…
vcad hashf76332d6af8cb18a…

Prompt

Make a flat rectangular plate 80mm × 40mm × 8mm thick, centered in X and Y with the bottom face on the XY plane (so it spans x in [-40, 40], y in [-20, 20], z in [0, 8]). Cut a stadium-shaped (rectangle with semicircular ends) slot all the way through the plate, axes along the X direction. The slot has total end-to-end length 50mm and width 10mm: the centers of the two semicircular ends are at (-20, 0) and (20, 0), each of radius 5mm, joined by a 40mm-long, 10mm-wide rectangular section (x in [-20, 20], y in [-5, 5]). The slot is cut through the full plate thickness. 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": [
    -40,
    -20,
    0
  ],
  "max": [
    40,
    20,
    8
  ],
  "tolerance_mm": 0.1
}

details: {
  "actual_max": [
    40,
    20,
    8
  ],
  "actual_min": [
    -40,
    -20,
    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 6.0%
params + details 
params: {
  "type": "mass_props",
  "volume_mm3": 21771.68,
  "tolerance_pct": 1
}

details: {
  "volume": {
    "actual_mm3": 23069.6106252829,
    "deviation_pct": 5.961554759590904,
    "pass": false,
    "spec_mm3": 21771.68,
    "tolerance_pct": 1
  }
}
3
hole_count
pass
params + details 
params: {
  "type": "hole_count",
  "diameter_mm": 10,
  "expected": 2,
  "diameter_tolerance_mm": 0.1
}

details: {
  "actual": 2,
  "diameter_mm": 10,
  "diameter_tolerance_mm": 0.1,
  "expected": 2,
  "found": [
    [
      20,
      0,
      10
    ],
    [
      -20,
      0,
      10
    ]
  ]
}
4
hole_positions
pass
params + details 
params: {
  "type": "hole_positions",
  "diameter_mm": 10,
  "positions": [
    [
      -20,
      0,
      0
    ],
    [
      20,
      0,
      0
    ]
  ],
  "tolerance_mm": 0.2
}

details: {
  "diameter_mm": 10,
  "per_expected": [
    {
      "distance_mm": 0,
      "matched_hole": [
        -20,
        0
      ],
      "pass": true,
      "spec_xy": [
        -20,
        0
      ]
    },
    {
      "distance_mm": 0,
      "matched_hole": [
        20,
        0
      ],
      "pass": true,
      "spec_xy": [
        20,
        0
      ]
    }
  ],
  "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": [
          40,
          20,
          8
        ],
        "original_min": [
          -40,
          -20,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          40,
          20,
          8
        ],
        "roundtripped_min": [
          -40,
          -20,
          0
        ],
        "tolerance_mm": 0.897997772825746
      },
      "index": 0,
      "pass": true,
      "volume": {
        "deviation_pct": 0.02632374540572723,
        "original_mm3": 23069.6106252829,
        "pass": true,
        "roundtripped_mm3": 23075.683410849993
      }
    }
  ],
  "tolerance_pct": 1
}

Tool calls

0
open_document
ok
1ms
args
{}
1
create
err
6ms
args
{
  "document_id": "doc_1781216988642_1",
  "type": "difference",
  "name": "Plate with Stadium Slot",
  "params": {
    "a": {
      "type": "translate",
      "params": {
        "x": -40,
        "y": -20,
        "z": 0,
        "child": {
          "type": "cube",
          "params": {
            "x": 80,
            "y": 40,
            "z": 8
          }
        }
      }
    },
    "b": {
      "type": "union",
      "params": {
        "a": {
          "type": "translate",
          "params": {
            "x": -20,
            "y": -5,
            "z": -1,
            "child": {
              "type": "cube",
              "params": {
                "x": 40,
                "y": 10,
                "z": 10
              }
            }
          }
        },
        "b": {
          "type": "union",
          "params": {
            "a": {
              "type": "translate",
              "params": {
                "x": -20,
                "y": 0,
                "z": -1,
                "child": {
                  "type": "cylinder",
                  "params": {
                    "r": 5,
                    "h": 10
                  }
                }
              }
            },
            "b": {
              "type": "translate",
              "params": {
                "x": 20,
                "y": 0,
                "z": -1,
                "child": {
                  "type": "cylinder",
                  "params": {
                    "r": 5,
                    "h": 10
                  }
                }
              }
            }
          }
        }
      }
    }
  }
}
2
create_cad_loon
ok
13ms
args
{
  "source": "[difference\n  [union\n    [translate -20 -5 -1 [cube 40 10 10]]\n    [union\n      [translate -20 0 -1 [cylinder 5 10]]\n      [translate 20 0 -1 [cylinder 5 10]]]]\n  [translate -40 -20 0 [cube 80 40 8]]]",
  "format": "json"
}
3
create
err
4ms
args
{
  "document_id": "doc_1781216988642_1",
  "type": "difference",
  "name": "Plate with Stadium Slot",
  "params": {
    "left": {
      "type": "translate",
      "params": {
        "x": -40,
        "y": -20,
        "z": 0,
        "child": {
          "type": "cube",
          "params": {
            "x": 80,
            "y": 40,
            "z": 8
          }
        }
      }
    },
    "right": {
      "type": "union",
      "params": {
        "left": {
          "type": "translate",
          "params": {
            "x": -20,
            "y": -5,
            "z": -1,
            "child": {
              "type": "cube",
              "params": {
                "x": 40,
                "y": 10,
                "z": 10
              }
            }
          }
        },
        "right": {
          "type": "union",
          "params": {
            "left": {
              "type": "translate",
              "params": {
                "x": -20,
                "y": 0,
                "z": -1,
                "child": {
                  "type": "cylinder",
                  "params": {
                    "radius": 5,
                    "height": 10
                  }
                }
              }
            },
            "right": {
              "type": "translate",
              "params": {
                "x": 20,
                "y": 0,
                "z": -1,
                "child": {
                  "type": "cylinder",
                  "params": {
                    "radius": 5,
                    "height": 10
                  }
                }
              }
            }
          }
        }
      }
    }
  }
}
4
create
ok
4ms
args
{
  "document_id": "doc_1781216988642_1",
  "type": "cube",
  "name": "PlateBox",
  "params": {
    "size": {
      "x": 80,
      "y": 40,
      "z": 8
    }
  }
}
5
read
ok
3ms
args
{
  "document_id": "doc_1781216988642_1",
  "part_id": "1"
}
6
create
ok
8ms
args
{
  "document_id": "doc_1781216988642_1",
  "type": "translate",
  "name": "PlateTrans",
  "params": {
    "child": 1,
    "offset": {
      "x": -40,
      "y": -20,
      "z": 0
    }
  },
  "parent_part_id": "1"
}
7
read
ok
3ms
args
{
  "document_id": "doc_1781216988642_1"
}
8
create
ok
4ms
args
{
  "document_id": "doc_1781216988642_1",
  "type": "cube",
  "name": "SlotRect",
  "params": {
    "size": {
      "x": 40,
      "y": 10,
      "z": 10
    }
  }
}
9
create
err
2ms
args
{
  "document_id": "doc_1781216988642_1",
  "type": "cylinder",
  "name": "SlotEndL",
  "params": {
    "radius": 5,
    "height": 10
  }
}
10
create
err
1ms
args
{
  "document_id": "doc_1781216988642_1",
  "type": "cylinder",
  "name": "SlotEndR",
  "params": {
    "radius": 5,
    "height": 10
  }
}
11
create
ok
4ms
args
{
  "document_id": "doc_1781216988642_1",
  "type": "cylinder",
  "name": "SlotEndL",
  "params": {
    "radius": 5,
    "height": 10,
    "segments": 64
  }
}
12
create
ok
2ms
args
{
  "document_id": "doc_1781216988642_1",
  "type": "cylinder",
  "name": "SlotEndR",
  "params": {
    "radius": 5,
    "height": 10,
    "segments": 64
  }
}
13
create
ok
1ms
args
{
  "document_id": "doc_1781216988642_1",
  "type": "translate",
  "name": "SlotRectT",
  "params": {
    "child": 3,
    "offset": {
      "x": -20,
      "y": -5,
      "z": -1
    }
  },
  "parent_part_id": "3"
}
14
create
ok
2ms
args
{
  "document_id": "doc_1781216988642_1",
  "type": "translate",
  "name": "SlotEndLT",
  "params": {
    "child": 4,
    "offset": {
      "x": -20,
      "y": 0,
      "z": -1
    }
  },
  "parent_part_id": "4"
}
15
create
ok
1ms
args
{
  "document_id": "doc_1781216988642_1",
  "type": "translate",
  "name": "SlotEndRT",
  "params": {
    "child": 5,
    "offset": {
      "x": 20,
      "y": 0,
      "z": -1
    }
  },
  "parent_part_id": "5"
}
16
create
ok
4ms
args
{
  "document_id": "doc_1781216988642_1",
  "type": "union",
  "name": "SlotEnds",
  "params": {
    "left": 7,
    "right": 8
  }
}
17
create
ok
3ms
args
{
  "document_id": "doc_1781216988642_1",
  "type": "union",
  "name": "SlotShape",
  "params": {
    "left": 6,
    "right": 9
  }
}
18
create
ok
3ms
args
{
  "document_id": "doc_1781216988642_1",
  "type": "difference",
  "name": "PlateWithSlot",
  "params": {
    "left": 2,
    "right": 10
  }
}
19
read
ok
3ms
args
{
  "document_id": "doc_1781216988642_1"
}
20
get_document
ok
2ms
args
{
  "document_id": "doc_1781216988642_1"
}
21
delete
ok
3ms
args
{
  "document_id": "doc_1781216988642_1",
  "part_id": "10"
}
22
get_document
ok
2ms
args
{
  "document_id": "doc_1781216988642_1"
}
23
delete
ok
2ms
args
{
  "document_id": "doc_1781216988642_1",
  "part_id": "1"
}
24
delete
ok
1ms
args
{
  "document_id": "doc_1781216988642_1",
  "part_id": "2"
}
25
delete
ok
1ms
args
{
  "document_id": "doc_1781216988642_1",
  "part_id": "3"
}
26
delete
ok
2ms
args
{
  "document_id": "doc_1781216988642_1",
  "part_id": "4"
}
27
delete
ok
1ms
args
{
  "document_id": "doc_1781216988642_1",
  "part_id": "5"
}
28
delete
ok
1ms
args
{
  "document_id": "doc_1781216988642_1",
  "part_id": "6"
}
29
delete
ok
1ms
args
{
  "document_id": "doc_1781216988642_1",
  "part_id": "7"
}
30
delete
ok
0ms
args
{
  "document_id": "doc_1781216988642_1",
  "part_id": "8"
}
31
delete
ok
0ms
args
{
  "document_id": "doc_1781216988642_1",
  "part_id": "9"
}
32
get_document
ok
2ms
args
{
  "document_id": "doc_1781216988642_1"
}
33
render_view
ok
111ms
args
{
  "document_id": "doc_1781216988642_1"
}
34
get_document
ok
2ms
args
{
  "document_id": "doc_1781216988642_1"
}

What the model built

isometric render via vcad-render · the model's actual .vcad output, faceted at 28 segments per cylinder · download 20260611T222948Z-2dca.vcad

.vcad source

{
  "version": "0.1",
  "nodes": {
    "1": {
      "id": 1,
      "name": "PlateBox",
      "op": {
        "type": "Cube",
        "size": {
          "x": 80,
          "y": 40,
          "z": 8
        }
      }
    },
    "2": {
      "id": 2,
      "name": "PlateTrans",
      "op": {
        "type": "Translate",
        "child": 1,
        "offset": {
          "x": -40,
          "y": -20,
          "z": 0
        }
      }
    },
    "3": {
      "id": 3,
      "name": "SlotRect",
      "op": {
        "type": "Cube",
        "size": {
          "x": 40,
          "y": 10,
          "z": 10
        }
      }
    },
    "4": {
      "id": 4,
      "name": "SlotEndL",
      "op": {
        "type": "Cylinder",
        "radius": 5,
        "height": 10,
        "segments": 64
      }
    },
    "5": {
      "id": 5,
      "name": "SlotEndR",
      "op": {
        "type": "Cylinder",
        "radius": 5,
        "height": 10,
        "segments": 64
      }
    },
    "6": {
      "id": 6,
      "name": "SlotRectT",
      "op": {
        "type": "Translate",
        "child": 3,
        "offset": {
          "x": -20,
          "y": -5,
          "z": -1
        }
      }
    },
    "7": {
      "id": 7,
      "name": "SlotEndLT",
      "op": {
        "type": "Translate",
        "child": 4,
        "offset": {
          "x": -20,
          "y": 0,
          "z": -1
        }
      }
    },
    "8": {
      "id": 8,
      "name": "SlotEndRT",
      "op": {
        "type": "Translate",
        "child": 5,
        "offset": {
          "x": 20,
          "y": 0,
          "z": -1
        }
      }
    },
    "9": {
      "id": 9,
      "name": "SlotEnds",
      "op": {
        "type": "Union",
        "left": 7,
        "right": 8
      }
    },
    "10": {
      "id": 10,
      "name": "SlotShape",
      "op": {
        "type": "Union",
        "left": 6,
        "right": 9
      }
    },
    "11": {
      "id": 11,
      "name": "PlateWithSlot",
      "op": {
        "type": "Difference",
        "left": 2,
        "right": 10
      }
    }
  },
  "materials": {},
  "part_materials": {},
  "roots": [
    {
      "root": 11,
      "material": "default"
    }
  ]
}
mecheval · an evaluation suite by Municipal Robotics
sibling project: vcad. · github

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