run 20260429T120329Z-c74b

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: {
  "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": [
    -40,
    -40,
    0
  ],
  "max": [
    40,
    40,
    30
  ],
  "tolerance_mm": 0.1
}

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

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

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

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

details: {
  "actual": 0,
  "diameter_mm": 6,
  "diameter_tolerance_mm": 0.05,
  "expected": 4,
  "found": []
}

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": [
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        30,
        30
      ]
    },
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        -30,
        30
      ]
    },
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        -30,
        -30
      ]
    },
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        30,
        -30
      ]
    }
  ],
  "tolerance_mm": 0.15,
  "unmatched_extras": []
}

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

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

Tool calls

{
  "model": "claude-haiku-4-5-20251001",
  "max_tokens": 8000,
  "system_chars": 1674,
  "user_chars": 703
}

What the model built

.vcad source

{
  "version": "0.1",
  "nodes": {
    "base_cube": {
      "id": "base_cube",
      "name": "Base layer cube",
      "op": {"type": "Cube", "size": {"x": 80, "y": 80, "z": 10}}
    },
    "base_translated": {
      "id": "base_translated",
      "name": "Base layer centered",
      "op": {"type": "Translate", "child": "base_cube", "offset": {"x": -40, "y": -40, "z": 0}}
    },
    "middle_cube": {
      "id": "middle_cube",
      "name": "Middle layer cube",
      "op": {"type": "Cube", "size": {"x": 60, "y": 60, "z": 10}}
    },
    "middle_translated": {
      "id": "middle_translated",
      "name": "Middle layer centered",
      "op": {"type": "Translate", "child": "middle_cube", "offset": {"x": -30, "y": -30, "z": 10}}
    },
    "top_cube": {
      "id": "top_cube",
      "name": "Top layer cube",
      "op": {"type": "Cube", "size": {"x": 40, "y": 40, "z": 10}}
    },
    "top_translated": {
      "id": "top_translated",
      "name": "Top layer centered",
      "op": {"type": "Translate", "child": "top_cube", "offset": {"x": -20, "y": -20, "z": 20}}
    },
    "base_and_middle": {
      "id": "base_and_middle",
      "name": "Base and middle fused",
      "op": {"type": "Union", "left": "base_translated", "right": "middle_translated"}
    },
    "pyramid_unfused": {
      "id": "pyramid_unfused",
      "name": "All three layers fused",
      "op": {"type": "Union", "left": "base_and_middle", "right": "top_translated"}
    },
    "hole1_cylinder": {
      "id": "hole1_cylinder",
      "name": "Hole 1 cylinder",
      "op": {"type": "Cylinder", "radius": 3, "height": 10, "segments": 32}
    },
    "hole1_translated": {
      "id": "hole1_translated",
      "name": "Hole 1 positioned",
      "op": {"type": "Translate", "child": "hole1_cylinder", "offset": {"x": 30, "y": 30, "z": 0}}
    },
    "hole2_cylinder": {
      "id": "hole2_cylinder",
      "name": "Hole 2 cylinder",
      "op": {"type": "Cylinder", "radius": 3, "height": 10, "segments": 32}
    },
    "hole2_translated": {
      "id": "hole2_translated",
      "name": "Hole 2 positioned",
      "op": {"type": "Translate", "child": "hole2_cylinder", "offset": {"x": -30, "y": 30, "z": 0}}
    },
    "hole3_cylinder": {
      "id": "hole3_cylinder",
      "name": "Hole 3 cylinder",
      "op": {"type": "Cylinder", "radius": 3, "height": 10, "segments": 32}
    },
    "hole3_translated": {
      "id": "hole3_translated",
      "name": "Hole 3 positioned",
      "op": {"type": "Translate", "child": "hole3_cylinder", "offset": {"x": -30, "y": -30, "z": 0}}
    },
    "hole4_cylinder": {
      "id": "hole4_cylinder",
      "name": "Hole 4 cylinder",
      "op": {"type": "Cylinder", "radius": 3, "height": 10, "segments": 32}
    },
    "hole4_translated": {
      "id": "hole4_translated",
      "name": "Hole 4 positioned",
      "op": {"type": "Translate", "child": "hole4_cylinder", "offset": {"x": 30, "y": -30, "z": 0}}
    },
    "holes_union_1": {
      "id": "holes_union_1",
      "name": "Holes 1 and 2 combined",
      "op": {"type": "Union", "left": "hole1_translated", "right": "hole2_translated"}
    },
    "holes_union_2": {
      "id": "holes_union_2",
      "name": "Holes 3 and 4 combined",
      "op": {"type": "Union", "left": "hole3_translated", "right": "hole4_translated"}
    },
    "all_holes": {
      "id": "all_holes",
      "name": "All holes combined",
      "op": {"type": "Union", "left": "holes_union_1", "right": "holes_union_2"}
    },
    "final_pyramid": {
      "id": "final_pyramid",
      "name": "Stepped pyramid with holes",
      "op": {"type": "Difference", "left": "pyramid_unfused", "right": "all_holes"}
    }
  },
  "materials": {},
  "part_materials": {},
  "roots": [{"root": "final_pyramid", "material": "default"}]
}

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