← mecheval / run / a2-flanged-cap-01 / claude-direct-claude-haiku-4-5-20251001 / 20260428T211419Z-e48d

run 20260428T211419Z-e48d

a2-flanged-cap-01 · claude-direct-claude-haiku-4-5-20251001

Summary

statusfail
score0.00 (0/7)
submissionself-run
modelclaude-direct-claude-haiku-4-5-20251001 (anthropic)
started2026-04-28T21:14:19.444Z
ended2026-04-28T21:14:26.653Z
tokens690 in · 1,663 out · 2,353 total
wallclock7.2s
tool calls1
task hasha438f2e4d00d25d7…
vcad hash57c3b0b5764948a0…

Prompt

Make a circular flanged cap. Outer cylinder: outside diameter 60mm, height 8mm, axis along Z, base on the XY plane (z = 0 to z = 8). Concentric central through-hole of diameter 40mm, axis along Z. Six bolt holes of diameter 5mm on a 50mm bolt circle (radius 25mm from the axis), evenly spaced starting at 0 degrees, all parallel to Z and going fully through. Output a single solid.

Checks

0
valid_solid
fail
solid invalid
params + details 
params: {
  "type": "valid_solid"
}

details: {
  "error": "parse: Invalid JSON vcad file: invalid value: expected key to be a number in quotes at line 4 column 5",
  "reason": "fatal evaluation error"
}
1
bbox
fail
? off by 0.00mm
params + details 
params: {
  "type": "bbox",
  "min": [
    -30,
    -30,
    0
  ],
  "max": [
    30,
    30,
    8
  ],
  "tolerance_mm": 0.1
}

details: {
  "reason": "no valid solid to measure"
}
2
mass_props
fail
mass props off
params + details 
params: {
  "type": "mass_props",
  "volume_mm3": 11623.89,
  "center_of_mass": [
    0,
    0,
    4
  ],
  "tolerance_pct": 0.5
}

details: {
  "reason": "no valid solid to measure"
}
3
hole_count
fail
found 0/1 holes of ⌀40mm
params + details 
params: {
  "type": "hole_count",
  "diameter_mm": 40,
  "expected": 1,
  "diameter_tolerance_mm": 0.1
}

details: {
  "actual": 0,
  "diameter_mm": 40,
  "diameter_tolerance_mm": 0.1,
  "expected": 1,
  "found": []
}
4
hole_count
fail
found 0/6 holes of ⌀5mm
params + details 
params: {
  "type": "hole_count",
  "diameter_mm": 5,
  "expected": 6,
  "diameter_tolerance_mm": 0.05
}

details: {
  "actual": 0,
  "diameter_mm": 5,
  "diameter_tolerance_mm": 0.05,
  "expected": 6,
  "found": []
}
5
hole_positions
fail
6/6 mispositioned
params + details 
params: {
  "type": "hole_positions",
  "diameter_mm": 5,
  "positions": [
    [
      25,
      0,
      0
    ],
    [
      12.5,
      21.65,
      0
    ],
    [
      -12.5,
      21.65,
      0
    ],
    [
      -25,
      0,
      0
    ],
    [
      -12.5,
      -21.65,
      0
    ],
    [
      12.5,
      -21.65,
      0
    ]
  ],
  "tolerance_mm": 0.15
}

details: {
  "diameter_mm": 5,
  "per_expected": [
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        25,
        0
      ]
    },
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        12.5,
        21.65
      ]
    },
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        -12.5,
        21.65
      ]
    },
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        -25,
        0
      ]
    },
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        -12.5,
        -21.65
      ]
    },
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        12.5,
        -21.65
      ]
    }
  ],
  "tolerance_mm": 0.15,
  "unmatched_extras": []
}
6
step_roundtrip
fail
STEP roundtrip failed
params + details 
params: {
  "type": "step_roundtrip",
  "tolerance_pct": 1
}

details: {
  "reason": "no valid solid to round-trip"
}

Tool calls

0
anthropic.messages.create
ok
7204ms
args
{
  "model": "claude-haiku-4-5-20251001",
  "max_tokens": 8000,
  "system_chars": 1632,
  "user_chars": 441
}

What the model built

no render available — vcad-render did not produce geometry for this attempt

.vcad source

{
  "version": "0.1",
  "nodes": {
    "outer_cylinder": {
      "id": 1,
      "name": "outer_cylinder",
      "op": {
        "type": "Cylinder",
        "radius": 30,
        "height": 8,
        "segments": 32
      }
    },
    "central_hole": {
      "id": 2,
      "name": "central_hole",
      "op": {
        "type": "Cylinder",
        "radius": 20,
        "height": 8,
        "segments": 32
      }
    },
    "with_central_hole": {
      "id": 3,
      "name": "with_central_hole",
      "op": {
        "type": "Difference",
        "left": 1,
        "right": 2
      }
    },
    "bolt_hole_0": {
      "id": 4,
      "name": "bolt_hole_0",
      "op": {
        "type": "Cylinder",
        "radius": 2.5,
        "height": 8,
        "segments": 32
      }
    },
    "bolt_hole_0_positioned": {
      "id": 5,
      "name": "bolt_hole_0_positioned",
      "op": {
        "type": "Translate",
        "child": 4,
        "offset": {"x": 25, "y": 0, "z": 0}
      }
    },
    "bolt_hole_1": {
      "id": 6,
      "name": "bolt_hole_1",
      "op": {
        "type": "Cylinder",
        "radius": 2.5,
        "height": 8,
        "segments": 32
      }
    },
    "bolt_hole_1_positioned": {
      "id": 7,
      "name": "bolt_hole_1_positioned",
      "op": {
        "type": "Translate",
        "child": 6,
        "offset": {"x": 12.5, "y": 21.65, "z": 0}
      }
    },
    "bolt_hole_2": {
      "id": 8,
      "name": "bolt_hole_2",
      "op": {
        "type": "Cylinder",
        "radius": 2.5,
        "height": 8,
        "segments": 32
      }
    },
    "bolt_hole_2_positioned": {
      "id": 9,
      "name": "bolt_hole_2_positioned",
      "op": {
        "type": "Translate",
        "child": 8,
        "offset": {"x": -12.5, "y": 21.65, "z": 0}
      }
    },
    "bolt_hole_3": {
      "id": 10,
      "name": "bolt_hole_3",
      "op": {
        "type": "Cylinder",
        "radius": 2.5,
        "height": 8,
        "segments": 32
      }
    },
    "bolt_hole_3_positioned": {
      "id": 11,
      "name": "bolt_hole_3_positioned",
      "op": {
        "type": "Translate",
        "child": 10,
        "offset": {"x": -25, "y": 0, "z": 0}
      }
    },
    "bolt_hole_4": {
      "id": 12,
      "name": "bolt_hole_4",
      "op": {
        "type": "Cylinder",
        "radius": 2.5,
        "height": 8,
        "segments": 32
      }
    },
    "bolt_hole_4_positioned": {
      "id": 13,
      "name": "bolt_hole_4_positioned",
      "op": {
        "type": "Translate",
        "child": 12,
        "offset": {"x": -12.5, "y": -21.65, "z": 0}
      }
    },
    "bolt_hole_5": {
      "id": 14,
      "name": "bolt_hole_5",
      "op": {
        "type": "Cylinder",
        "radius": 2.5,
        "height": 8,
        "segments": 32
      }
    },
    "bolt_hole_5_positioned": {
      "id": 15,
      "name": "bolt_hole_5_positioned",
      "op": {
        "type": "Translate",
        "child": 14,
        "offset": {"x": 12.5, "y": -21.65, "z": 0}
      }
    },
    "with_holes_1": {
      "id": 16,
      "name": "with_holes_1",
      "op": {
        "type": "Difference",
        "left": 3,
        "right": 5
      }
    },
    "with_holes_2": {
      "id": 17,
      "name": "with_holes_2",
      "op": {
        "type": "Difference",
        "left": 16,
        "right": 7
      }
    },
    "with_holes_3": {
      "id": 18,
      "name": "with_holes_3",
      "op": {
        "type": "Difference",
        "left": 17,
        "right": 9
      }
    },
    "with_holes_4": {
      "id": 19,
      "name": "with_holes_4",
      "op": {
        "type": "Difference",
        "left": 18,
        "right": 11
      }
    },
    "with_holes_5": {
      "id": 20,
      "name": "with_holes_5",
      "op": {
        "type": "Difference",
        "left": 19,
        "right": 13
      }
    },
    "flanged_cap": {
      "id": 21,
      "name": "flanged_cap",
      "op": {
        "type": "Difference",
        "left": 20,
        "right": 15
      }
    }
  },
  "materials": {},
  "part_materials": {},
  "roots": [
    {
      "root": 21,
      "material": "default"
    }
  ]
}
mecheval · an evaluation suite by Municipal Robotics
sibling project: vcad. · github

generated 2026-06-19T01:47:55.566Z · static site, regenerate with npm run build -w @mecheval/leaderboard