← mecheval / run / a3-cross-shaft-01 / claude-mcp-claude-opus-4-7 / 20260611T180742Z-a345

run 20260611T180742Z-a345

a3-cross-shaft-01 · claude-mcp-claude-opus-4-7

Summary

statusfail
score0.75 (3/4)
submissionself-run
modelclaude-mcp-claude-opus-4-7 (anthropic)
started2026-06-11T18:07:42.647Z
ended2026-06-11T18:09:37.821Z
tokens579,077 in · 6,084 out · 585,161 total
wallclock115.2s
tool calls41
task hash9e7917fe01d0892e…
vcad hash28dd27b310aa26e7…

Prompt

Make a single solid that is the union of two cylinders intersecting at right angles. Vertical cylinder: outside diameter 20mm, length 40mm, axis along Z, base on the XY plane (z = 0 to z = 40), centered on the Z axis. Horizontal cylinder: outside diameter 20mm, length 40mm, axis along the X axis, centered at (0, 0, 20) (so it passes through the middle of the vertical cylinder). The two cylinders are merged into one solid (their intersection region counts only once).

Checks

0
valid_solid
pass
params + details 
params: {
  "type": "valid_solid"
}

details: {
  "root_count": 2,
  "solids_produced": 2
}
1
bbox
pass
params + details 
params: {
  "type": "bbox",
  "min": [
    -20,
    -10,
    0
  ],
  "max": [
    20,
    10,
    40
  ],
  "tolerance_mm": 0.2
}

details: {
  "actual_max": [
    20,
    10,
    40
  ],
  "actual_min": [
    -20,
    -10,
    0
  ],
  "deviation_max": [
    0,
    0,
    0
  ],
  "deviation_min": [
    0,
    0,
    0
  ],
  "max_abs_deviation_mm": 0,
  "tolerance_mm": 0.2
}
2
mass_props
fail
volume off by 26.7%
params + details 
params: {
  "type": "mass_props",
  "volume_mm3": 19799.41,
  "tolerance_pct": 1.5
}

details: {
  "volume": {
    "actual_mm3": 25092.38800584648,
    "deviation_pct": 26.733008740394176,
    "pass": false,
    "spec_mm3": 19799.41,
    "tolerance_pct": 1.5
  }
}
3
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,
          10,
          40
        ],
        "original_min": [
          -10,
          -10,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          10,
          10,
          40
        ],
        "roundtripped_min": [
          -10,
          -10,
          0
        ],
        "tolerance_mm": 0.7348469228349533
      },
      "index": 0,
      "pass": true,
      "volume": {
        "deviation_pct": 0.48152755025717725,
        "original_mm3": 12546.194005836653,
        "pass": true,
        "roundtripped_mm3": 12485.780625189835
      }
    },
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          20,
          10,
          30
        ],
        "original_min": [
          -20,
          -10,
          10
        ],
        "pass": true,
        "roundtripped_max": [
          20,
          10,
          30
        ],
        "roundtripped_min": [
          -20,
          -10,
          10
        ],
        "tolerance_mm": 0.7348469228349533
      },
      "index": 1,
      "pass": true,
      "volume": {
        "deviation_pct": 0.4815270275688668,
        "original_mm3": 12546.194000009828,
        "pass": true,
        "roundtripped_mm3": 12485.780684968557
      }
    }
  ],
  "tolerance_pct": 1.5
}

Tool calls

0
open_document
ok
2ms
args
{}
1
create
err
6ms
args
{
  "document_id": "doc_1781201262817_1",
  "type": "union",
  "name": "Cross Cylinders",
  "params": {
    "children": [
      {
        "type": "cylinder",
        "params": {
          "radius": 10,
          "height": 40,
          "center_x": 0,
          "center_y": 0,
          "center_z": 0
        }
      },
      {
        "type": "translate",
        "params": {
          "x": -20,
          "y": 0,
          "z": 20,
          "child": {
            "type": "rotate",
            "params": {
              "rx": 0,
              "ry": 90,
              "rz": 0,
              "child": {
                "type": "cylinder",
                "params": {
                  "radius": 10,
                  "height": 40
                }
              }
            }
          }
        }
      }
    ]
  }
}
2
read
ok
4ms
args
{
  "document_id": "doc_1781201262817_1"
}
3
create
err
2ms
args
{
  "document_id": "doc_1781201262817_1",
  "type": "cylinder",
  "name": "Vertical",
  "params": {
    "radius": 10,
    "height": 40
  }
}
4
create
ok
5ms
args
{
  "document_id": "doc_1781201262817_1",
  "type": "cylinder",
  "name": "Vertical",
  "params": {
    "radius": 10,
    "height": 40,
    "segments": 64
  }
}
5
create
ok
8ms
args
{
  "document_id": "doc_1781201262817_1",
  "type": "cylinder",
  "name": "HorizontalRaw",
  "params": {
    "radius": 10,
    "height": 40,
    "segments": 64
  }
}
6
read
ok
3ms
args
{
  "document_id": "doc_1781201262817_1",
  "part_id": "2"
}
7
delete
ok
3ms
args
{
  "document_id": "doc_1781201262817_1",
  "part_id": "1"
}
8
delete
ok
1ms
args
{
  "document_id": "doc_1781201262817_1",
  "part_id": "2"
}
9
create
ok
6ms
args
{
  "document_id": "doc_1781201262817_1",
  "type": "cylinder",
  "name": "Vertical",
  "params": {
    "radius": 10,
    "height": 40,
    "segments": 64
  }
}
10
create
ok
4ms
args
{
  "document_id": "doc_1781201262817_1",
  "type": "cylinder",
  "name": "HorizontalRaw",
  "params": {
    "radius": 10,
    "height": 40,
    "segments": 64
  },
  "parent_part_id": "1"
}
11
read
ok
4ms
args
{
  "document_id": "doc_1781201262817_1"
}
12
read
ok
4ms
args
{
  "document_id": "doc_1781201262817_1",
  "part_id": "1"
}
13
read
ok
2ms
args
{
  "document_id": "doc_1781201262817_1",
  "part_id": "2"
}
14
delete
ok
2ms
args
{
  "document_id": "doc_1781201262817_1",
  "part_id": "1"
}
15
delete
ok
2ms
args
{
  "document_id": "doc_1781201262817_1",
  "part_id": "2"
}
16
create_cad_loon
ok
12ms
args
{
  "source": "[root [union [translate 0 0 20 [rotate 0 90 0 [translate 0 0 -20 [cylinder 10 40]]]] [cylinder 10 40]] \"default\"]",
  "format": "json"
}
17
create
ok
3ms
args
{
  "document_id": "doc_1781201262817_1",
  "type": "cylinder",
  "name": "Vertical",
  "params": {
    "radius": 10,
    "height": 40,
    "segments": 64
  }
}
18
create
ok
3ms
args
{
  "document_id": "doc_1781201262817_1",
  "type": "cylinder",
  "name": "HorizCyl",
  "params": {
    "radius": 10,
    "height": 40,
    "segments": 64
  },
  "parent_part_id": "1"
}
19
read
ok
3ms
args
{
  "document_id": "doc_1781201262817_1"
}
20
delete
ok
2ms
args
{
  "document_id": "doc_1781201262817_1",
  "part_id": "1"
}
21
delete
ok
1ms
args
{
  "document_id": "doc_1781201262817_1",
  "part_id": "2"
}
22
create
ok
4ms
args
{
  "document_id": "doc_1781201262817_1",
  "type": "cylinder",
  "name": "VerticalBase",
  "params": {
    "radius": 10,
    "height": 40,
    "segments": 64
  }
}
23
create
err
3ms
args
{
  "document_id": "doc_1781201262817_1",
  "type": "translate",
  "name": "CenterZ",
  "params": {
    "x": 0,
    "y": 0,
    "z": -20
  },
  "parent_part_id": "1"
}
24
create
ok
3ms
args
{
  "document_id": "doc_1781201262817_1",
  "type": "translate",
  "name": "CenterZ",
  "params": {
    "offset": {
      "x": 0,
      "y": 0,
      "z": -20
    },
    "child": 1
  },
  "parent_part_id": "1"
}
25
read
ok
2ms
args
{
  "document_id": "doc_1781201262817_1"
}
26
read
ok
2ms
args
{
  "document_id": "doc_1781201262817_1",
  "part_id": "1"
}
27
read
ok
1ms
args
{
  "document_id": "doc_1781201262817_1",
  "part_id": "2"
}
28
delete
ok
2ms
args
{
  "document_id": "doc_1781201262817_1",
  "part_id": "1"
}
29
delete
ok
1ms
args
{
  "document_id": "doc_1781201262817_1",
  "part_id": "2"
}
30
create
ok
2ms
args
{
  "document_id": "doc_1781201262817_1",
  "type": "cylinder",
  "name": "Vert",
  "params": {
    "radius": 10,
    "height": 40,
    "segments": 64
  }
}
31
create
ok
1ms
args
{
  "document_id": "doc_1781201262817_1",
  "type": "cylinder",
  "name": "HorizRaw",
  "params": {
    "radius": 10,
    "height": 40,
    "segments": 64
  }
}
32
create
ok
3ms
args
{
  "document_id": "doc_1781201262817_1",
  "type": "translate",
  "name": "CenterH",
  "params": {
    "offset": {
      "x": 0,
      "y": 0,
      "z": -20
    },
    "child": 2
  },
  "parent_part_id": "2"
}
33
delete
ok
2ms
args
{
  "document_id": "doc_1781201262817_1",
  "part_id": "2"
}
34
read
ok
2ms
args
{
  "document_id": "doc_1781201262817_1"
}
35
create
ok
4ms
args
{
  "document_id": "doc_1781201262817_1",
  "type": "rotate",
  "name": "RotateY90",
  "params": {
    "angles": {
      "x": 0,
      "y": 90,
      "z": 0
    },
    "child": 3
  },
  "parent_part_id": "3"
}
36
delete
ok
3ms
args
{
  "document_id": "doc_1781201262817_1",
  "part_id": "3"
}
37
create
ok
2ms
args
{
  "document_id": "doc_1781201262817_1",
  "type": "translate",
  "name": "PlaceH",
  "params": {
    "offset": {
      "x": 0,
      "y": 0,
      "z": 20
    },
    "child": 4
  },
  "parent_part_id": "4"
}
38
delete
ok
3ms
args
{
  "document_id": "doc_1781201262817_1",
  "part_id": "4"
}
39
read
ok
1ms
args
{
  "document_id": "doc_1781201262817_1"
}
40
get_document
ok
1ms
args
{
  "document_id": "doc_1781201262817_1"
}

What the model built

isometric render via vcad-render · the model's actual .vcad output, faceted at 28 segments per cylinder · download 20260611T180742Z-a345.vcad

.vcad source

{
  "version": "0.1",
  "nodes": {
    "1": {
      "id": 1,
      "name": "Vert",
      "op": {
        "type": "Cylinder",
        "radius": 10,
        "height": 40,
        "segments": 64
      }
    },
    "2": {
      "id": 2,
      "name": "HorizRaw",
      "op": {
        "type": "Cylinder",
        "radius": 10,
        "height": 40,
        "segments": 64
      }
    },
    "3": {
      "id": 3,
      "name": "CenterH",
      "op": {
        "type": "Translate",
        "child": 2,
        "offset": {
          "x": 0,
          "y": 0,
          "z": -20
        }
      }
    },
    "4": {
      "id": 4,
      "name": "RotateY90",
      "op": {
        "type": "Rotate",
        "child": 3,
        "angles": {
          "x": 0,
          "y": 90,
          "z": 0
        }
      }
    },
    "5": {
      "id": 5,
      "name": "PlaceH",
      "op": {
        "type": "Translate",
        "child": 4,
        "offset": {
          "x": 0,
          "y": 0,
          "z": 20
        }
      }
    }
  },
  "materials": {},
  "part_materials": {},
  "roots": [
    {
      "root": 1,
      "material": "default"
    },
    {
      "root": 5,
      "material": "default"
    }
  ]
}
mecheval · an evaluation suite by Municipal Robotics
sibling project: vcad. · github

generated 2026-06-19T01:47:55.820Z · static site, regenerate with npm run build -w @mecheval/leaderboard