← mecheval / run / a5-hollow-cap-01 / claude-mcp-claude-opus-4-7 / 20260611T224512Z-8580

run 20260611T224512Z-8580

a5-hollow-cap-01 · claude-mcp-claude-opus-4-7

Summary

status	PASS
score	1.00 (4/4)
submission	self-run
model	claude-mcp-claude-opus-4-7 (anthropic)
started	2026-06-11T22:45:12.554Z
ended	2026-06-11T22:45:53.988Z
tokens	202,508 in · 2,265 out · 204,773 total
wallclock	41.4s
tool calls	16
task hash	`b8167e7f075d7ee2…`
vcad hash	`efd11dbd157ba346…`

Prompt

Make a hollow cylindrical cap (like a cup or thimble) as a single solid. The outer body is a cylinder of diameter 60mm and height 50mm, base on the XY plane (z = 0 to z = 50), centered on the Z axis. The inside of the cap is hollow: subtract a coaxial inner cylinder of diameter 50mm and height 42mm that opens from the top (z = 8 to z = 50), leaving a solid base wall 8mm thick at the bottom (z = 0 to z = 8) and a cylindrical wall 5mm thick all around. The top is open. Output a single solid.

Checks

valid_solid

pass

params + details

params: {
  "type": "valid_solid"
}

details: {
  "root_count": 1,
  "solids_produced": 1
}

bbox

pass

params + details

params: {
  "type": "bbox",
  "min": [
    -30,
    -30,
    0
  ],
  "max": [
    30,
    30,
    50
  ],
  "tolerance_mm": 0.1
}

details: {
  "actual_max": [
    30,
    30,
    50
  ],
  "actual_min": [
    -30,
    -30,
    0
  ],
  "deviation_max": [
    0,
    0,
    0
  ],
  "deviation_min": [
    0,
    0,
    0
  ],
  "max_abs_deviation_mm": 0,
  "tolerance_mm": 0.1
}

mass_props

pass

params + details

params: {
  "type": "mass_props",
  "volume_mm3": 58904.77,
  "center_of_mass": [
    0,
    0,
    19.4
  ],
  "tolerance_pct": 1
}

details: {
  "center_of_mass": {
    "actual": [
      3.8146733663847603e-16,
      5.715566344566357e-16,
      19.400000035785386
    ],
    "bbox_diagonal_mm": 98.48857801796105,
    "deviation": [
      3.8146733663847603e-16,
      5.715566344566357e-16,
      3.5785387098030697e-8
    ],
    "max_abs_deviation_mm": 3.5785387098030697e-8,
    "pass": true,
    "spec": [
      0,
      0,
      19.4
    ],
    "tolerance_mm": 0.9848857801796105
  },
  "volume": {
    "actual_mm3": 58810.284627314126,
    "deviation_pct": 0.16040360175563198,
    "pass": true,
    "spec_mm3": 58904.77,
    "tolerance_pct": 1
  }
}

step_roundtrip

pass

params + details

params: {
  "type": "step_roundtrip",
  "tolerance_pct": 1
}

details: {
  "per_solid": [
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          30,
          30,
          50
        ],
        "original_min": [
          -30,
          -30,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          30,
          30,
          50
        ],
        "roundtripped_min": [
          -30,
          -30,
          0
        ],
        "tolerance_mm": 0.9848857801796105
      },
      "index": 0,
      "pass": true,
      "volume": {
        "deviation_pct": 0.7490414273838609,
        "original_mm3": 58810.284627314126,
        "pass": true,
        "roundtripped_mm3": 58369.77123189318
      }
    }
  ],
  "tolerance_pct": 1
}

Tool calls

open_document

3ms

args

{}

create

err

5ms

args

{
  "document_id": "doc_1781217912725_1",
  "type": "difference",
  "name": "Hollow Cap",
  "params": {
    "children": [
      {
        "type": "translate",
        "params": {
          "x": 0,
          "y": 0,
          "z": 0,
          "child": {
            "type": "cylinder",
            "params": {
              "radius": 30,
              "height": 50
            }
          }
        }
      },
      {
        "type": "translate",
        "params": {
          "x": 0,
          "y": 0,
          "z": 8,
          "child": {
            "type": "cylinder",
            "params": {
              "radius": 25,
              "height": 42
            }
          }
        }
      }
    ]
  }
}

create

err

2ms

args

{
  "document_id": "doc_1781217912725_1",
  "type": "difference",
  "name": "Hollow Cap",
  "params": {
    "left": {
      "type": "translate",
      "params": {
        "x": 0,
        "y": 0,
        "z": 0,
        "child": {
          "type": "cylinder",
          "params": {
            "radius": 30,
            "height": 50
          }
        }
      }
    },
    "right": {
      "type": "translate",
      "params": {
        "x": 0,
        "y": 0,
        "z": 8,
        "child": {
          "type": "cylinder",
          "params": {
            "radius": 25,
            "height": 42
          }
        }
      }
    }
  }
}

create_cad_loon

10ms

args

{
  "source": "[difference [translate 0 0 8 [cylinder 25 42]] [cylinder 30 50]]",
  "format": "json"
}

create

err

4ms

args

{
  "document_id": "doc_1781217912725_1",
  "type": "cylinder",
  "name": "Outer",
  "params": {
    "radius": 30,
    "height": 50
  }
}

create

3ms

args

{
  "document_id": "doc_1781217912725_1",
  "type": "cylinder",
  "name": "Outer",
  "params": {
    "radius": 30,
    "height": 50,
    "segments": 64
  }
}

create

3ms

args

{
  "document_id": "doc_1781217912725_1",
  "type": "cylinder",
  "name": "InnerRaw",
  "params": {
    "radius": 25,
    "height": 42,
    "segments": 64
  }
}

create

5ms

args

{
  "document_id": "doc_1781217912725_1",
  "type": "translate",
  "name": "InnerShifted",
  "params": {
    "child": 2,
    "offset": {
      "x": 0,
      "y": 0,
      "z": 8
    }
  }
}

create

4ms

args

{
  "document_id": "doc_1781217912725_1",
  "type": "difference",
  "name": "Hollow Cap",
  "params": {
    "left": 1,
    "right": 3
  }
}

read

3ms

args

{
  "document_id": "doc_1781217912725_1"
}

delete

6ms

args

{
  "document_id": "doc_1781217912725_1",
  "part_id": "1"
}

delete

1ms

args

{
  "document_id": "doc_1781217912725_1",
  "part_id": "2"
}

delete

1ms

args

{
  "document_id": "doc_1781217912725_1",
  "part_id": "3"
}

read

3ms

args

{
  "document_id": "doc_1781217912725_1"
}

inspect_cad

26ms

args

{
  "document_id": "doc_1781217912725_1"
}

get_document

1ms

args

{
  "document_id": "doc_1781217912725_1"
}

What the model built

isometric render via vcad-render · the model's actual .vcad output, faceted at 28 segments per cylinder · download 20260611T224512Z-8580.vcad

.vcad source

{
  "version": "0.1",
  "nodes": {
    "1": {
      "id": 1,
      "name": "Outer",
      "op": {
        "type": "Cylinder",
        "radius": 30,
        "height": 50,
        "segments": 64
      }
    },
    "2": {
      "id": 2,
      "name": "InnerRaw",
      "op": {
        "type": "Cylinder",
        "radius": 25,
        "height": 42,
        "segments": 64
      }
    },
    "3": {
      "id": 3,
      "name": "InnerShifted",
      "op": {
        "type": "Translate",
        "child": 2,
        "offset": {
          "x": 0,
          "y": 0,
          "z": 8
        }
      }
    },
    "4": {
      "id": 4,
      "name": "Hollow Cap",
      "op": {
        "type": "Difference",
        "left": 1,
        "right": 3
      }
    }
  },
  "materials": {},
  "part_materials": {},
  "roots": [
    {
      "root": 4,
      "material": "default"
    }
  ]
}

generated 2026-06-19T01:47:56.215Z · static site, regenerate with npm run build -w @mecheval/leaderboard