← mecheval / run / a6-compound-boss-01 / claude-mcp-claude-opus-4-7 / 20260612T003441Z-24fb

run 20260612T003441Z-24fb

a6-compound-boss-01 · claude-mcp-claude-opus-4-7

Summary

statusfail
score0.38 (3/8)
submissionself-run
modelclaude-mcp-claude-opus-4-7 (anthropic)
started2026-06-12T00:34:41.599Z
ended2026-06-12T00:36:14.565Z
tokens608,990 in · 5,319 out · 614,309 total
wallclock92.9s
tool calls34
task hashfaa43ee084711ae5…
vcad hash2c7f44b62997efc3…

Prompt

Make a compound boss plate as a single solid. The base is a rectangular plate 120mm × 80mm × 15mm, centered in X and Y with its bottom face on the XY plane (x in [-60, 60], y in [-40, 40], z in [0, 15]). Two cylindrical bosses of diameter 30mm and height 20mm rise from the top face of the base plate: the left boss is centered at (-30, 0) and spans z in [15, 35]; the right boss is centered at (30, 0) and spans z in [15, 35]. Through each boss and through the base plate below it, drill a coaxial through-bore of diameter 16mm along the Z axis: the left bore is centered at (-30, 0) and passes through z in [0, 35]; the right bore is centered at (30, 0) and passes through z in [0, 35]. Four corner bolt holes of diameter 8mm, axes parallel to Z, pass through the base plate only (z = 0 to z = 15), at positions (50, 30), (-50, 30), (-50, -30), (50, -30). Output a single solid.

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": [
    -60,
    -40,
    0
  ],
  "max": [
    60,
    40,
    35
  ],
  "tolerance_mm": 0.1
}

details: {
  "actual_max": [
    60,
    40,
    35
  ],
  "actual_min": [
    -60,
    -40,
    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 11.0%
params + details 
params: {
  "type": "mass_props",
  "volume_mm3": 155184.95,
  "center_of_mass": [
    0,
    0,
    9.78
  ],
  "tolerance_pct": 1
}

details: {
  "center_of_mass": {
    "actual": [
      2.3657675229066923e-15,
      -1.0165407324989694e-16,
      10.36831243721462
    ],
    "bbox_diagonal_mm": 148.4082207965583,
    "deviation": [
      2.3657675229066923e-15,
      -1.0165407324989694e-16,
      0.5883124372146202
    ],
    "max_abs_deviation_mm": 0.5883124372146202,
    "pass": true,
    "spec": [
      0,
      0,
      9.78
    ],
    "tolerance_mm": 1.484082207965583
  },
  "volume": {
    "actual_mm3": 172228.93731065144,
    "deviation_pct": 10.983015627901692,
    "pass": false,
    "spec_mm3": 155184.95,
    "tolerance_pct": 1
  }
}
3
hole_count
fail
found 0/2 holes of ⌀16mm
params + details 
params: {
  "type": "hole_count",
  "diameter_mm": 16,
  "expected": 2,
  "diameter_tolerance_mm": 0.1
}

details: {
  "actual": 0,
  "diameter_mm": 16,
  "diameter_tolerance_mm": 0.1,
  "expected": 2,
  "found": []
}
4
hole_positions
fail
2/2 mispositioned
params + details 
params: {
  "type": "hole_positions",
  "diameter_mm": 16,
  "positions": [
    [
      -30,
      0,
      0
    ],
    [
      30,
      0,
      0
    ]
  ],
  "tolerance_mm": 0.2
}

details: {
  "diameter_mm": 16,
  "per_expected": [
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        -30,
        0
      ]
    },
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        30,
        0
      ]
    }
  ],
  "tolerance_mm": 0.2,
  "unmatched_extras": []
}
5
hole_count
fail
found 0/4 holes of ⌀8mm
params + details 
params: {
  "type": "hole_count",
  "diameter_mm": 8,
  "expected": 4,
  "diameter_tolerance_mm": 0.05
}

details: {
  "actual": 0,
  "diameter_mm": 8,
  "diameter_tolerance_mm": 0.05,
  "expected": 4,
  "found": []
}
6
hole_positions
fail
4/4 mispositioned
params + details 
params: {
  "type": "hole_positions",
  "diameter_mm": 8,
  "positions": [
    [
      50,
      30,
      0
    ],
    [
      -50,
      30,
      0
    ],
    [
      -50,
      -30,
      0
    ],
    [
      50,
      -30,
      0
    ]
  ],
  "tolerance_mm": 0.2
}

details: {
  "diameter_mm": 8,
  "per_expected": [
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        50,
        30
      ]
    },
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        -50,
        30
      ]
    },
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        -50,
        -30
      ]
    },
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        50,
        -30
      ]
    }
  ],
  "tolerance_mm": 0.2,
  "unmatched_extras": []
}
7
step_roundtrip
pass
params + details 
params: {
  "type": "step_roundtrip",
  "tolerance_pct": 1
}

details: {
  "per_solid": [
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          45,
          15,
          35
        ],
        "original_min": [
          15,
          -15,
          15
        ],
        "pass": true,
        "roundtripped_max": [
          45,
          15,
          35
        ],
        "roundtripped_min": [
          15,
          -15,
          15
        ],
        "tolerance_mm": 0.469041575982343
      },
      "index": 0,
      "pass": true,
      "volume": {
        "deviation_pct": 0.48152886853203974,
        "original_mm3": 14114.468655325669,
        "pass": true,
        "roundtripped_mm3": 14046.50341411037
      }
    },
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          60,
          40,
          35
        ],
        "original_min": [
          -60,
          -40,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          60,
          40,
          35
        ],
        "roundtripped_min": [
          -60,
          -40,
          0
        ],
        "tolerance_mm": 1.484082207965583
      },
      "index": 1,
      "pass": true,
      "volume": {
        "deviation_pct": 0.0537310419733702,
        "original_mm3": 158114.46865532576,
        "pass": true,
        "roundtripped_mm3": 158029.5121038066
      }
    }
  ],
  "tolerance_pct": 1
}

Tool calls

0
open_document
ok
2ms
args
{}
1
create_cad_loon
err
4ms
args
{
  "source": "[let\n  [let base [translate -60 -40 0 [cube 120 80 15]]\n   [let boss-l [translate -30 0 15 [cylinder 15 20]]\n    [let boss-r [translate 30 0 15 [cylinder 15 20]]\n     [let bore-l [translate -30 0 0 [cylinder 8 35]]\n      [let bore-r [translate 30 0 0 [cylinder 8 35]]\n       [let h1 [translate 50 30 0 [cylinder 4 15]]\n        [let h2 [translate -50 30 0 [cylinder 4 15]]\n         [let h3 [translate -50 -30 0 [cylinder 4 15]]\n          [let h4 [translate 50 -30 0 [cylinder 4 15]]\n           [root\n             [difference h4\n              [difference h3\n               [difference h2\n                [difference h1\n                 [difference bore-r\n                  [difference bore-l\n                   [union boss-r\n                    [union boss-l base]]]]]]]]\n             \"steel\"]]]]]]]]]]]]\n"
}
2
create
err
7ms
args
{
  "document_id": "doc_1781224481801_1",
  "type": "cube",
  "name": "Base",
  "params": {
    "size_x": 120,
    "size_y": 80,
    "size_z": 15,
    "center": [
      -60,
      -40,
      0
    ]
  }
}
3
create_cad_loon
ok
6ms
args
{
  "source": "[root\n  [pipe\n    [union\n      [translate -60 -40 0 [cube 120 80 15]]\n      [union\n        [translate -30 0 15 [cylinder 15 20]]\n        [translate 30 0 15 [cylinder 15 20]]]]\n    [difference [translate -30 0 0 [cylinder 8 35]]]\n    [difference [translate 30 0 0 [cylinder 8 35]]]\n    [difference [translate 50 30 0 [cylinder 4 15]]]\n    [difference [translate -50 30 0 [cylinder 4 15]]]\n    [difference [translate -50 -30 0 [cylinder 4 15]]]\n    [difference [translate 50 -30 0 [cylinder 4 15]]]]\n  \"steel\"]\n"
}
4
create
ok
2ms
args
{
  "document_id": "doc_1781224481801_1",
  "type": "cube",
  "name": "Base",
  "params": {
    "size": [
      120,
      80,
      15
    ]
  }
}
5
create
err
2ms
args
{
  "document_id": "doc_1781224481801_1",
  "type": "translate",
  "name": "Base Pos",
  "parent_part_id": "1",
  "params": {
    "offset": [
      -60,
      -40,
      0
    ]
  }
}
6
read
ok
1ms
args
{
  "document_id": "doc_1781224481801_1"
}
7
delete
ok
1ms
args
{
  "document_id": "doc_1781224481801_1",
  "part_id": "1"
}
8
create
ok
2ms
args
{
  "document_id": "doc_1781224481801_1",
  "type": "cube",
  "name": "Base",
  "params": {
    "size": [
      120,
      80,
      15
    ],
    "center": true
  }
}
9
read
ok
2ms
args
{
  "document_id": "doc_1781224481801_1",
  "part_id": "1"
}
10
delete
ok
2ms
args
{
  "document_id": "doc_1781224481801_1",
  "part_id": "1"
}
11
create_cad_loon
ok
4ms
args
{
  "source": "[root\n  [pipe\n    [union\n      [translate -60 -40 0 [cube 120 80 15]]\n      [union\n        [translate -30 0 15 [cylinder 15 20]]\n        [translate 30 0 15 [cylinder 15 20]]]]\n    [difference [translate -30 0 0 [cylinder 8 35]]]\n    [difference [translate 30 0 0 [cylinder 8 35]]]\n    [difference [translate 50 30 0 [cylinder 4 15]]]\n    [difference [translate -50 30 0 [cylinder 4 15]]]\n    [difference [translate -50 -30 0 [cylinder 4 15]]]\n    [difference [translate 50 -30 0 [cylinder 4 15]]]]\n  \"steel\"]\n",
  "format": "json"
}
12
create
ok
1ms
args
{
  "document_id": "doc_1781224481801_1",
  "type": "cube",
  "name": "BaseCube",
  "params": {
    "size": [
      120,
      80,
      15
    ]
  }
}
13
create
ok
1ms
args
{
  "document_id": "doc_1781224481801_1",
  "type": "translate",
  "name": "BaseT",
  "parent_part_id": "1",
  "params": {
    "offset": [
      -60,
      -40,
      0
    ],
    "child": 1
  }
}
14
read
ok
1ms
args
{
  "document_id": "doc_1781224481801_1"
}
15
read
ok
1ms
args
{
  "document_id": "doc_1781224481801_1",
  "part_id": "2"
}
16
read
ok
1ms
args
{
  "document_id": "doc_1781224481801_1",
  "part_id": "1"
}
17
delete
ok
1ms
args
{
  "document_id": "doc_1781224481801_1",
  "part_id": "1"
}
18
read
ok
1ms
args
{
  "document_id": "doc_1781224481801_1",
  "part_id": "2"
}
19
create
err
1ms
args
{
  "document_id": "doc_1781224481801_1",
  "type": "cylinder",
  "name": "BossL_cyl",
  "params": {
    "radius": 15,
    "height": 20
  }
}
20
create
err
1ms
args
{
  "document_id": "doc_1781224481801_1",
  "type": "cylinder",
  "name": "BossR_cyl",
  "params": {
    "radius": 15,
    "height": 20
  }
}
21
create
ok
1ms
args
{
  "document_id": "doc_1781224481801_1",
  "type": "cylinder",
  "name": "BossL_cyl",
  "params": {
    "radius": 15,
    "height": 20,
    "segments": 64
  }
}
22
create
ok
1ms
args
{
  "document_id": "doc_1781224481801_1",
  "type": "translate",
  "name": "BossL_T",
  "parent_part_id": "3",
  "params": {
    "offset": [
      -30,
      0,
      15
    ],
    "child": 3
  }
}
23
delete
ok
1ms
args
{
  "document_id": "doc_1781224481801_1",
  "part_id": "3"
}
24
create
ok
2ms
args
{
  "document_id": "doc_1781224481801_1",
  "type": "cylinder",
  "name": "BossR_cyl",
  "params": {
    "radius": 15,
    "height": 20,
    "segments": 64
  }
}
25
create
ok
2ms
args
{
  "document_id": "doc_1781224481801_1",
  "type": "translate",
  "name": "BossR_T",
  "parent_part_id": "5",
  "params": {
    "offset": [
      30,
      0,
      15
    ],
    "child": 5
  }
}
26
delete
ok
1ms
args
{
  "document_id": "doc_1781224481801_1",
  "part_id": "5"
}
27
read
ok
1ms
args
{
  "document_id": "doc_1781224481801_1"
}
28
create
ok
2ms
args
{
  "document_id": "doc_1781224481801_1",
  "type": "union",
  "name": "U1",
  "parent_part_id": "2",
  "params": {
    "left": 2,
    "right": 4
  }
}
29
read
ok
1ms
args
{
  "document_id": "doc_1781224481801_1",
  "part_id": "7"
}
30
read
ok
1ms
args
{
  "document_id": "doc_1781224481801_1"
}
31
delete
ok
1ms
args
{
  "document_id": "doc_1781224481801_1",
  "part_id": "2"
}
32
delete
ok
1ms
args
{
  "document_id": "doc_1781224481801_1",
  "part_id": "4"
}
33
get_document
ok
0ms
args
{
  "document_id": "doc_1781224481801_1"
}

What the model built

isometric render via vcad-render · the model's actual .vcad output, faceted at 28 segments per cylinder · download 20260612T003441Z-24fb.vcad

.vcad source

{
  "version": "0.1",
  "nodes": {
    "1": {
      "id": 1,
      "name": "BaseCube",
      "op": {
        "type": "Cube",
        "size": {
          "x": 120,
          "y": 80,
          "z": 15
        }
      }
    },
    "2": {
      "id": 2,
      "name": "BaseT",
      "op": {
        "type": "Translate",
        "child": 1,
        "offset": {
          "x": -60,
          "y": -40,
          "z": 0
        }
      }
    },
    "3": {
      "id": 3,
      "name": "BossL_cyl",
      "op": {
        "type": "Cylinder",
        "radius": 15,
        "height": 20,
        "segments": 64
      }
    },
    "4": {
      "id": 4,
      "name": "BossL_T",
      "op": {
        "type": "Translate",
        "child": 3,
        "offset": {
          "x": -30,
          "y": 0,
          "z": 15
        }
      }
    },
    "5": {
      "id": 5,
      "name": "BossR_cyl",
      "op": {
        "type": "Cylinder",
        "radius": 15,
        "height": 20,
        "segments": 64
      }
    },
    "6": {
      "id": 6,
      "name": "BossR_T",
      "op": {
        "type": "Translate",
        "child": 5,
        "offset": {
          "x": 30,
          "y": 0,
          "z": 15
        }
      }
    },
    "7": {
      "id": 7,
      "name": "U1",
      "op": {
        "type": "Union",
        "left": 2,
        "right": 4
      }
    }
  },
  "materials": {},
  "part_materials": {},
  "roots": [
    {
      "root": 6,
      "material": "default"
    },
    {
      "root": 7,
      "material": "default"
    }
  ]
}
mecheval · an evaluation suite by Municipal Robotics
sibling project: vcad. · github

generated 2026-06-19T01:47:56.258Z · static site, regenerate with npm run build -w @mecheval/leaderboard