run 20260428T211852Z-9fb2

Summary

Prompt

Start with a 40mm cube, centered in X and Y with the bottom face on the XY plane (so it spans x in [-20, 20], y in [-20, 20], z in [0, 40]). Cut a rectangular pocket into the top face: remove material in x in [-10, 10], y in [-10, 10], z in [30, 40]. The pocket is open at the top, closed on the four sides and the bottom (10mm of cube remains underneath the pocket). Output a single solid.

Checks

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"
}

params: {
  "type": "bbox",
  "min": [
    -20,
    -20,
    0
  ],
  "max": [
    20,
    20,
    40
  ],
  "tolerance_mm": 0.05
}

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

params: {
  "type": "mass_props",
  "volume_mm3": 60000,
  "tolerance_pct": 0.1
}

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

params: {
  "type": "step_roundtrip",
  "tolerance_pct": 0.1
}

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

Tool calls

{
  "model": "claude-haiku-4-5-20251001",
  "max_tokens": 8000,
  "system_chars": 1632,
  "user_chars": 455
}

What the model built

.vcad source

{
  "version": "0.1",
  "nodes": {
    "cube": {
      "id": "cube",
      "name": "base_cube",
      "op": {
        "type": "Cube",
        "size": {"x": 40, "y": 40, "z": 40}
      }
    },
    "cube_translated": {
      "id": "cube_translated",
      "name": "cube_centered",
      "op": {
        "type": "Translate",
        "child": "cube",
        "offset": {"x": -20, "y": -20, "z": 0}
      }
    },
    "pocket": {
      "id": "pocket",
      "name": "pocket_cube",
      "op": {
        "type": "Cube",
        "size": {"x": 20, "y": 20, "z": 10}
      }
    },
    "pocket_translated": {
      "id": "pocket_translated",
      "name": "pocket_positioned",
      "op": {
        "type": "Translate",
        "child": "pocket",
        "offset": {"x": -10, "y": -10, "z": 30}
      }
    },
    "result": {
      "id": "result",
      "name": "cube_with_pocket",
      "op": {
        "type": "Difference",
        "left": "cube_translated",
        "right": "pocket_translated"
      }
    }
  },
  "materials": {},
  "part_materials": {},
  "roots": [
    {
      "root": "result",
      "material": "default"
    }
  ]
}

generated 2026-06-19T01:47:55.482Z · static site, regenerate with npm run build -w @mecheval/leaderboard