run 20260429T120501Z-977a

Summary

Prompt

Make a stepped pyramid composed of three concentric square layers stacked along Z, fused into a single solid. Base layer: 80mm × 80mm × 10mm, centered in X and Y, bottom face on the XY plane (z = 0 to z = 10). Middle layer: 60mm × 60mm × 10mm, centered, sitting on top of the base layer (z = 10 to z = 20). Top layer: 40mm × 40mm × 10mm, centered, sitting on top of the middle layer (z = 20 to z = 30). The base layer has four bolt holes of diameter 6mm, axes parallel to Z, drilled through the full 10mm thickness of the base only (z = 0 to z = 10), located at (30, 30), (-30, 30), (-30, -30), (30, -30). Output a single solid.

Checks

params: {
  "type": "valid_solid"
}

details: {
  "root_count": 1,
  "solids_produced": 1
}

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

details: {
  "actual_max": [
    40,
    40,
    30
  ],
  "actual_min": [
    -40,
    -40,
    0
  ],
  "deviation_max": [
    0,
    0,
    0
  ],
  "deviation_min": [
    0,
    0,
    0
  ],
  "max_abs_deviation_mm": 0,
  "tolerance_mm": 0.1
}

params: {
  "type": "mass_props",
  "volume_mm3": 114869.03,
  "tolerance_pct": 0.5
}

details: {
  "volume": {
    "actual_mm3": 115063.56671987213,
    "deviation_pct": 0.1693552386331947,
    "pass": true,
    "spec_mm3": 114869.03,
    "tolerance_pct": 0.5
  }
}

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

details: {
  "actual": 4,
  "diameter_mm": 6,
  "diameter_tolerance_mm": 0.05,
  "expected": 4,
  "found": [
    [
      30,
      30,
      6
    ],
    [
      -30,
      30,
      6
    ],
    [
      -30,
      -30,
      6
    ],
    [
      30,
      -30,
      6
    ]
  ]
}

params: {
  "type": "hole_positions",
  "diameter_mm": 6,
  "positions": [
    [
      30,
      30,
      0
    ],
    [
      -30,
      30,
      0
    ],
    [
      -30,
      -30,
      0
    ],
    [
      30,
      -30,
      0
    ]
  ],
  "tolerance_mm": 0.15
}

details: {
  "diameter_mm": 6,
  "per_expected": [
    {
      "distance_mm": 0,
      "matched_hole": [
        30,
        30
      ],
      "pass": true,
      "spec_xy": [
        30,
        30
      ]
    },
    {
      "distance_mm": 0,
      "matched_hole": [
        -30,
        30
      ],
      "pass": true,
      "spec_xy": [
        -30,
        30
      ]
    },
    {
      "distance_mm": 0,
      "matched_hole": [
        -30,
        -30
      ],
      "pass": true,
      "spec_xy": [
        -30,
        -30
      ]
    },
    {
      "distance_mm": 0,
      "matched_hole": [
        30,
        -30
      ],
      "pass": true,
      "spec_xy": [
        30,
        -30
      ]
    }
  ],
  "tolerance_mm": 0.15,
  "unmatched_extras": []
}

params: {
  "type": "step_roundtrip",
  "tolerance_pct": 0.5
}

details: {
  "per_solid": [
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          40,
          40,
          30
        ],
        "original_min": [
          -40,
          -40,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          40,
          40,
          30
        ],
        "roundtripped_min": [
          -40,
          -40,
          0
        ],
        "tolerance_mm": 0.5852349955359814
      },
      "index": 0,
      "pass": false,
      "volume": {
        "deviation_pct": 1.2056697646197314,
        "original_mm3": 115063.56671987213,
        "pass": false,
        "roundtripped_mm3": 113676.28008583758
      }
    }
  ],
  "tolerance_pct": 0.5
}

Tool calls

{
  "model": "claude-sonnet-4-6",
  "max_tokens": 8000,
  "system_chars": 1674,
  "user_chars": 703
}

What the model built

isometric render via vcad-render · the model's actual .vcad output, faceted at 28 segments per cylinder · download 20260429T120501Z-977a.vcad

.vcad source

{
  "version": "0.1",
  "nodes": {
    "1":  { "id": 1,  "name": "base_cube",       "op": {"type":"Cube","size":{"x":80,"y":80,"z":10}} },
    "2":  { "id": 2,  "name": "base_centered",    "op": {"type":"Translate","child":1,"offset":{"x":-40,"y":-40,"z":0}} },
    "3":  { "id": 3,  "name": "mid_cube",         "op": {"type":"Cube","size":{"x":60,"y":60,"z":10}} },
    "4":  { "id": 4,  "name": "mid_centered",     "op": {"type":"Translate","child":3,"offset":{"x":-30,"y":-30,"z":10}} },
    "5":  { "id": 5,  "name": "top_cube",         "op": {"type":"Cube","size":{"x":40,"y":40,"z":10}} },
    "6":  { "id": 6,  "name": "top_centered",     "op": {"type":"Translate","child":5,"offset":{"x":-20,"y":-20,"z":20}} },
    "7":  { "id": 7,  "name": "union_base_mid",   "op": {"type":"Union","left":2,"right":4} },
    "8":  { "id": 8,  "name": "pyramid",          "op": {"type":"Union","left":7,"right":6} },
    "9":  { "id": 9,  "name": "hole_cyl",         "op": {"type":"Cylinder","radius":3,"height":10,"segments":32} },
    "10": { "id": 10, "name": "hole1",            "op": {"type":"Translate","child":9,"offset":{"x":30,"y":30,"z":0}} },
    "11": { "id": 11, "name": "hole_cyl2",        "op": {"type":"Cylinder","radius":3,"height":10,"segments":32} },
    "12": { "id": 12, "name": "hole2",            "op": {"type":"Translate","child":11,"offset":{"x":-30,"y":30,"z":0}} },
    "13": { "id": 13, "name": "hole_cyl3",        "op": {"type":"Cylinder","radius":3,"height":10,"segments":32} },
    "14": { "id": 14, "name": "hole3",            "op": {"type":"Translate","child":13,"offset":{"x":-30,"y":-30,"z":0}} },
    "15": { "id": 15, "name": "hole_cyl4",        "op": {"type":"Cylinder","radius":3,"height":10,"segments":32} },
    "16": { "id": 16, "name": "hole4",            "op": {"type":"Translate","child":15,"offset":{"x":30,"y":-30,"z":0}} },
    "17": { "id": 17, "name": "holes_12",         "op": {"type":"Union","left":10,"right":12} },
    "18": { "id": 18, "name": "holes_34",         "op": {"type":"Union","left":14,"right":16} },
    "19": { "id": 19, "name": "all_holes",        "op": {"type":"Union","left":17,"right":18} },
    "20": { "id": 20, "name": "stepped_pyramid",  "op": {"type":"Difference","left":8,"right":19} }
  },
  "materials": {},
  "part_materials": {},
  "roots": [{"root": 20, "material": "default"}]
}

generated 2026-06-19T01:47:56.164Z · static site, regenerate with npm run build -w @mecheval/leaderboard