run 20260428T213242Z-28df

Summary

Prompt

Make a hexagonal nut. The outer cross-section is a regular hexagon with flat-to-flat distance 19mm (so 19mm wrench fits), oriented so two flats are parallel to the X axis (the top and bottom of the hex). Height 8mm along Z, base on the XY plane (z = 0 to z = 8). Concentric central through-hole of diameter 10mm, axis along Z. Output a single solid.

Checks

params: {
  "type": "valid_solid"
}

details: {
  "error": "parse: Invalid JSON vcad file: missing field `angles` at line 8 column 133",
  "reason": "fatal evaluation error"
}

params: {
  "type": "bbox",
  "min": [
    -10.97,
    -9.5,
    0
  ],
  "max": [
    10.97,
    9.5,
    8
  ],
  "tolerance_mm": 0.2
}

details: {
  "reason": "no valid solid to measure"
}

params: {
  "type": "mass_props",
  "volume_mm3": 1872.62,
  "tolerance_pct": 1.5
}

details: {
  "reason": "no valid solid to measure"
}

params: {
  "type": "hole_count",
  "diameter_mm": 10,
  "expected": 1,
  "diameter_tolerance_mm": 0.1
}

details: {
  "actual": 0,
  "diameter_mm": 10,
  "diameter_tolerance_mm": 0.1,
  "expected": 1,
  "found": []
}

params: {
  "type": "hole_positions",
  "diameter_mm": 10,
  "positions": [
    [
      0,
      0,
      0
    ]
  ],
  "tolerance_mm": 0.15
}

details: {
  "diameter_mm": 10,
  "per_expected": [
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        0,
        0
      ]
    }
  ],
  "tolerance_mm": 0.15,
  "unmatched_extras": []
}

params: {
  "type": "step_roundtrip",
  "tolerance_pct": 1.5
}

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

Tool calls

{
  "model": "claude-opus-4-7",
  "max_tokens": 8000,
  "system_chars": 1632,
  "user_chars": 405
}

What the model built

.vcad source

{
  "version": "0.1",
  "nodes": {
    "1": { "id": 1, "name": "hex_box", "op": {"type":"Cube","size":{"x":22,"y":19,"z":8}} },
    "2": { "id": 2, "name": "hex_box_centered", "op": {"type":"Translate","child":1,"offset":{"x":-11,"y":-9.5,"z":0}} },
    "3": { "id": 3, "name": "cut1_box", "op": {"type":"Cube","size":{"x":22,"y":19,"z":8}} },
    "4": { "id": 4, "name": "cut1_centered", "op": {"type":"Translate","child":3,"offset":{"x":-11,"y":-9.5,"z":0}} },
    "5": { "id": 5, "name": "cut1_rotated", "op": {"type":"Rotate","child":4,"axis":{"x":0,"y":0,"z":1},"angle":1.0471975511965976} },
    "6": { "id": 6, "name": "hex_step1", "op": {"type":"Intersection","left":2,"right":5} },
    "7": { "id": 7, "name": "cut2_box", "op": {"type":"Cube","size":{"x":22,"y":19,"z":8}} },
    "8": { "id": 8, "name": "cut2_centered", "op": {"type":"Translate","child":7,"offset":{"x":-11,"y":-9.5,"z":0}} },
    "9": { "id": 9, "name": "cut2_rotated", "op": {"type":"Rotate","child":8,"axis":{"x":0,"y":0,"z":1},"angle":2.0943951023931953} },
    "10": { "id": 10, "name": "hex_solid", "op": {"type":"Intersection","left":6,"right":9} },
    "11": { "id": 11, "name": "hole", "op": {"type":"Cylinder","radius":5,"height":8,"segments":64} },
    "12": { "id": 12, "name": "nut", "op": {"type":"Difference","left":10,"right":11} }
  },
  "materials": {},
  "part_materials": {},
  "roots": [{ "root": 12, "material": "default" }]
}

generated 2026-06-19T01:47:55.867Z · static site, regenerate with npm run build -w @mecheval/leaderboard