Rectangular plate with raised central boss and through features A · A5 · a5-stepped-boss-plate-01

Expected

Prompt

Make a stepped boss plate as a single solid. The base is a rectangular plate 80mm × 60mm × 10mm, centered in X and Y with its bottom face on the XY plane (x in [-40, 40], y in [-30, 30], z in [0, 10]). Centered on top of the base plate sits a rectangular boss 40mm × 30mm × 8mm (x in [-20, 20], y in [-15, 15], z in [10, 18]). A central through-bore of diameter 18mm, axis parallel to Z, passes through the entire assembly from bottom to top (z = 0 to z = 18), centered at the origin. Four corner bolt holes of diameter 6mm, axes parallel to Z, pass through the base plate only (z = 0 to z = 10), located at (28, 22), (-28, 22), (-28, -22), (28, -22). Output a single solid.

Checks

{
  "type": "valid_solid"
}

{
  "type": "bbox",
  "min": [
    -40,
    -30,
    0
  ],
  "max": [
    40,
    30,
    18
  ],
  "tolerance_mm": 0.1
}

{
  "type": "mass_props",
  "volume_mm3": 51888.59,
  "center_of_mass": [
    0,
    0,
    6.31
  ],
  "tolerance_pct": 1
}

{
  "type": "hole_count",
  "diameter_mm": 18,
  "expected": 1,
  "diameter_tolerance_mm": 0.1
}

{
  "type": "hole_positions",
  "diameter_mm": 18,
  "positions": [
    [
      0,
      0,
      0
    ]
  ],
  "tolerance_mm": 0.2
}

{
  "type": "hole_count",
  "diameter_mm": 6,
  "expected": 4,
  "diameter_tolerance_mm": 0.05
}

{
  "type": "hole_positions",
  "diameter_mm": 6,
  "positions": [
    [
      28,
      22,
      0
    ],
    [
      -28,
      22,
      0
    ],
    [
      -28,
      -22,
      0
    ],
    [
      28,
      -22,
      0
    ]
  ],
  "tolerance_mm": 0.2
}

{
  "type": "step_roundtrip",
  "tolerance_pct": 1
}

Anti-cheese

{
  "max_solid_count": 1
}

Limits

{
  "max_tokens": 40000,
  "max_wallclock_sec": 240,
  "max_tool_calls": 50
}

Recent attempts

Runs (5)

generated 2026-06-17T03:16:07.267Z · static site, regenerate with npm run build -w @mecheval/leaderboard