← mecheval / run / a3-tangent-cylinders-01 / claude-mcp-claude-opus-4-7 / 20260611T220844Z-9e7b

run 20260611T220844Z-9e7b

a3-tangent-cylinders-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	2026-06-11T22:08:44.607Z
ended	2026-06-11T22:09:29.549Z
tokens	236,282 in · 2,027 out · 238,309 total
wallclock	44.9s
tool calls	17
task hash	`3c9319f74706d04c…`
vcad hash	`b3c98d4cddc14f43…`

Prompt

Make a single solid consisting of two cylinders fused together. Big cylinder: outside diameter 50mm, axis along Z, base on the XY plane (z = 0 to z = 40), centered on the Z axis. Small cylinder: outside diameter 10mm, axis along Z, base on the XY plane (z = 0 to z = 40), positioned so that its outer surface is externally tangent to the big cylinder's outer surface on the +X side. The two cylinders share exactly one tangent line (no overlap, no gap). Output a single solid (the union of the two cylinders).

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": [
    -25,
    -25,
    0
  ],
  "max": [
    35,
    25,
    40
  ],
  "tolerance_mm": 0.2
}

details: {
  "actual_max": [
    35,
    25,
    40
  ],
  "actual_min": [
    -25,
    -25,
    0
  ],
  "deviation_max": [
    0,
    0,
    0
  ],
  "deviation_min": [
    0,
    0,
    0
  ],
  "max_abs_deviation_mm": 0,
  "tolerance_mm": 0.2
}

mass_props

pass

params + details

params: {
  "type": "mass_props",
  "volume_mm3": 81681.41,
  "tolerance_pct": 1
}

details: {
  "volume": {
    "actual_mm3": 81550.2610428139,
    "deviation_pct": 0.1605615735405425,
    "pass": true,
    "spec_mm3": 81681.41,
    "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": [
          35,
          25,
          40
        ],
        "original_min": [
          -25,
          -25,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          35,
          25,
          40
        ],
        "roundtripped_min": [
          -25,
          -25,
          0
        ],
        "tolerance_mm": 0.8774964387392121
      },
      "index": 0,
      "pass": true,
      "volume": {
        "deviation_pct": 0.4815248605890577,
        "original_mm3": 81550.2610428139,
        "pass": true,
        "roundtripped_mm3": 81157.57626201748
      }
    }
  ],
  "tolerance_pct": 1
}

Tool calls

open_document

2ms

args

{}

create

err

6ms

args

{
  "document_id": "doc_1781215724785_1",
  "type": "union",
  "name": "Two Cylinders",
  "params": {
    "a": {
      "type": "cylinder",
      "params": {
        "radius": 25,
        "height": 40
      }
    },
    "b": {
      "type": "translate",
      "params": {
        "x": 30,
        "y": 0,
        "z": 0,
        "child": {
          "type": "cylinder",
          "params": {
            "radius": 5,
            "height": 40
          }
        }
      }
    }
  }
}

create_cad_loon

13ms

args

{
  "source": "[root [union [translate 30 0 0 [cylinder 5 40]] [cylinder 25 40]] \"steel\"]",
  "format": "json"
}

create

err

3ms

args

{
  "document_id": "doc_1781215724785_1",
  "type": "cylinder",
  "name": "Big",
  "params": {
    "radius": 25,
    "height": 40
  }
}

create

3ms

args

{
  "document_id": "doc_1781215724785_1",
  "type": "cylinder",
  "name": "Big",
  "params": {
    "radius": 25,
    "height": 40,
    "segments": 64
  }
}

create

5ms

args

{
  "document_id": "doc_1781215724785_1",
  "type": "cylinder",
  "name": "Small",
  "params": {
    "radius": 5,
    "height": 40,
    "segments": 64
  }
}

read

3ms

args

{
  "document_id": "doc_1781215724785_1"
}

create

err

5ms

args

{
  "document_id": "doc_1781215724785_1",
  "type": "translate",
  "name": "SmallShift",
  "params": {
    "child": "2",
    "offset": {
      "x": 30,
      "y": 0,
      "z": 0
    }
  }
}

create

3ms

args

{
  "document_id": "doc_1781215724785_1",
  "type": "translate",
  "name": "SmallShift",
  "params": {
    "child": 2,
    "offset": {
      "x": 30,
      "y": 0,
      "z": 0
    }
  }
}

create

3ms

args

{
  "document_id": "doc_1781215724785_1",
  "type": "union",
  "name": "Fused",
  "params": {
    "left": 1,
    "right": 3
  }
}

read

2ms

args

{
  "document_id": "doc_1781215724785_1"
}

delete

3ms

args

{
  "document_id": "doc_1781215724785_1",
  "part_id": "1"
}

delete

1ms

args

{
  "document_id": "doc_1781215724785_1",
  "part_id": "2"
}

delete

1ms

args

{
  "document_id": "doc_1781215724785_1",
  "part_id": "3"
}

read

2ms

args

{
  "document_id": "doc_1781215724785_1"
}

render_view

102ms

args

{
  "document_id": "doc_1781215724785_1"
}

get_document

2ms

args

{
  "document_id": "doc_1781215724785_1"
}

What the model built

isometric render via vcad-render · the model's actual .vcad output, faceted at 28 segments per cylinder · download 20260611T220844Z-9e7b.vcad

.vcad source

{
  "version": "0.1",
  "nodes": {
    "1": {
      "id": 1,
      "name": "Big",
      "op": {
        "type": "Cylinder",
        "radius": 25,
        "height": 40,
        "segments": 64
      }
    },
    "2": {
      "id": 2,
      "name": "Small",
      "op": {
        "type": "Cylinder",
        "radius": 5,
        "height": 40,
        "segments": 64
      }
    },
    "3": {
      "id": 3,
      "name": "SmallShift",
      "op": {
        "type": "Translate",
        "child": 2,
        "offset": {
          "x": 30,
          "y": 0,
          "z": 0
        }
      }
    },
    "4": {
      "id": 4,
      "name": "Fused",
      "op": {
        "type": "Union",
        "left": 1,
        "right": 3
      }
    }
  },
  "materials": {},
  "part_materials": {},
  "roots": [
    {
      "root": 4,
      "material": "default"
    }
  ]
}

generated 2026-06-19T01:47:55.976Z · static site, regenerate with npm run build -w @mecheval/leaderboard