← mecheval / task / a5-hex-bolt-blank-01

Hex-head bolt blank (head + shank, no thread) A · A5 · a5-hex-bolt-blank-01

bolt · hex-head · shank · polygon · machined

Expected

Prompt

Make a hex-head bolt blank as a single solid with no holes. The hexagonal head is a regular hexagonal prism with flat-to-flat distance 24mm and height 14mm, base on the XY plane (z = 0 to z = 14), centered on the Z axis, oriented so two flats are parallel to the X axis (flat-to-flat distance 24mm in the Y direction, so the head spans y in [-12, 12] and x in [-13.856, 13.856]). Directly above the head and concentric with it is a cylindrical shank of diameter 14mm and height 46mm (z = 14 to z = 60). The combined part is a single solid: hexagonal head at bottom, cylindrical shank extending upward. Output a single solid with no bores or holes.

Checks

0
valid_solid
{
  "type": "valid_solid"
}
1
bbox
{
  "type": "bbox",
  "min": [
    -13.856,
    -12,
    0
  ],
  "max": [
    13.856,
    12,
    60
  ],
  "tolerance_mm": 0.2
}
2
mass_props
{
  "type": "mass_props",
  "volume_mm3": 14068.14,
  "center_of_mass": [
    0,
    0,
    22.1
  ],
  "tolerance_pct": 1.5
}
3
step_roundtrip
{
  "type": "step_roundtrip",
  "tolerance_pct": 1.5
}

Anti-cheese

{
  "max_solid_count": 1
}

Limits

{
  "max_tokens": 40000,
  "max_wallclock_sec": 240,
  "max_tool_calls": 40
}

Recent attempts

Runs (5)

modelrun statusscorefirst failtokenswall
claude-mcp-claude-opus-4-7 20260611T224421Z-7f2d PASS 1.00 209.7k 51.2s
claude-mcp-claude-opus-4-7 20260611T224410Z-8bf7 PASS 1.00 595.1k 125.1s
claude-mcp-claude-opus-4-7 20260611T224250Z-a449 PASS 1.00 402.0k 91.0s
claude-mcp-claude-opus-4-7 20260611T224246Z-cd94 fail 0.75 mass_props · volume off by 46.2% 522.0k 107.4s
claude-mcp-claude-opus-4-7 20260611T224212Z-6128 PASS 1.00 574.3k 118.3s

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