← mecheval / run / a3-hex-nut-01 / claude-direct-claude-opus-4-7 / 20260428T213249Z-d031
run 20260428T213249Z-d031
Summary
| status | fail |
| score | 0.00 (0/6) |
| submission | self-run |
| model | claude-direct-claude-opus-4-7 (anthropic) |
| started | 2026-04-28T21:32:49.625Z |
| ended | 2026-04-28T21:32:53.995Z |
| tokens | 892 in · 383 out · 1,275 total |
| wallclock | 4.4s |
| tool calls | 1 |
| task hash | 7a7b681fbc898d3a… |
| vcad hash | 6e93585c4621d729… |
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
0
valid_solidfail
solid invalid
params + details
params: {
"type": "valid_solid"
}
details: {
"error": "parse: Invalid JSON vcad file: missing field `angles` at line 5 column 142",
"reason": "fatal evaluation error"
}
1
bboxfail
? off by 0.00mm
params + details
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"
}
2
mass_propsfail
mass props off
params + details
params: {
"type": "mass_props",
"volume_mm3": 1872.62,
"tolerance_pct": 1.5
}
details: {
"reason": "no valid solid to measure"
}
3
hole_countfail
found 0/1 holes of ⌀10mm
params + details
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": []
}
4
hole_positionsfail
1/1 mispositioned
params + details
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": []
}
5
step_roundtripfail
STEP roundtrip failed
params + details
params: {
"type": "step_roundtrip",
"tolerance_pct": 1.5
}
details: {
"reason": "no valid solid to round-trip"
}
Tool calls
0
anthropic.messages.createok
4365ms
args
{
"model": "claude-opus-4-7",
"max_tokens": 8000,
"system_chars": 1632,
"user_chars": 405
}What the model built
no render available — vcad-render did not produce geometry for this attempt
.vcad source
{
"version": "0.1",
"nodes": {
"1": {"id": 1, "name": "hex_cyl", "op": {"type": "Cylinder", "radius": 10.969655114602876, "height": 8, "segments": 6}},
"2": {"id": 2, "name": "hex_rotated", "op": {"type": "Rotate", "child": 1, "axis": {"x": 0, "y": 0, "z": 1}, "angle": 0.5235987755982988}},
"3": {"id": 3, "name": "hole", "op": {"type": "Cylinder", "radius": 5, "height": 10, "segments": 64}},
"4": {"id": 4, "name": "hole_positioned", "op": {"type": "Translate", "child": 3, "offset": {"x": 0, "y": 0, "z": -1}}},
"5": {"id": 5, "name": "nut", "op": {"type": "Difference", "left": 2, "right": 4}}
},
"materials": {},
"part_materials": {},
"roots": [{"root": 5, "material": "default"}]
}