← mecheval / run / a3-octagonal-flange-01 / claude-direct-claude-opus-4-7 / 20260428T231915Z-f8c3
run 20260428T231915Z-f8c3
Summary
| status | fail |
| score | 0.67 (4/6) |
| submission | self-run |
| model | claude-direct-claude-opus-4-7 (anthropic) |
| started | 2026-04-28T23:19:15.595Z |
| ended | 2026-04-28T23:19:26.221Z |
| tokens | 972 in · 1,228 out · 2,200 total |
| wallclock | 10.2s |
| tool calls | 1 |
| task hash | 91605c57469285ce… |
| vcad hash | 7baa6dd259d05a5e… |
Prompt
Make an octagonal prism flange. The outer cross-section is a regular octagon with flat-to-flat distance 40mm (apothem 20mm), oriented so two flats are parallel to the X axis (the top and bottom of the octagon). Height 8mm along Z, base on the XY plane (z = 0 to z = 8). Drill eight through-holes of diameter 5mm, axes parallel to Z, on a bolt circle of radius 15mm centered on the Z axis. The first bolt hole is on the +X axis, and the rest are evenly spaced every 45 degrees. Output a single solid.
Checks
0
valid_solidpass
params + details
params: {
"type": "valid_solid"
}
details: {
"root_count": 1,
"solids_produced": 1
}
1
bboxfail
Y off by +1.65mm
params + details
params: {
"type": "bbox",
"min": [
-21.65,
-20,
0
],
"max": [
21.65,
20,
8
],
"tolerance_mm": 0.3
}
details: {
"actual_max": [
21.64780044555664,
21.64780044555664,
8
],
"actual_min": [
-21.64780044555664,
-21.64780044555664,
0
],
"deviation_max": [
-0.002199554443357954,
1.6478004455566406,
0
],
"deviation_min": [
0.002199554443357954,
-1.6478004455566406,
0
],
"max_abs_deviation_mm": 1.6478004455566406,
"tolerance_mm": 0.3
}
2
mass_propsfail
volume off by 11.8%
params + details
params: {
"type": "mass_props",
"volume_mm3": 9347.81,
"tolerance_pct": 1.5
}
details: {
"volume": {
"actual_mm3": 10453.7758549622,
"deviation_pct": 11.831282995291946,
"pass": false,
"spec_mm3": 9347.81,
"tolerance_pct": 1.5
}
}
3
hole_countpass
params + details
params: {
"type": "hole_count",
"diameter_mm": 5,
"expected": 8,
"diameter_tolerance_mm": 0.05
}
details: {
"actual": 8,
"diameter_mm": 5,
"diameter_tolerance_mm": 0.05,
"expected": 8,
"found": [
[
15,
0,
5
],
[
10.6066017178,
10.6066017178,
5
],
[
0,
15,
5
],
[
-10.6066017178,
10.6066017178,
5
],
[
-15,
0,
5
],
[
-10.6066017178,
-10.6066017178,
5
],
[
0,
-15,
5
],
[
10.6066017178,
-10.6066017178,
5
]
]
}
4
hole_positionspass
params + details
params: {
"type": "hole_positions",
"diameter_mm": 5,
"positions": [
[
15,
0,
0
],
[
10.61,
10.61,
0
],
[
0,
15,
0
],
[
-10.61,
10.61,
0
],
[
-15,
0,
0
],
[
-10.61,
-10.61,
0
],
[
0,
-15,
0
],
[
10.61,
-10.61,
0
]
],
"tolerance_mm": 0.2
}
details: {
"diameter_mm": 5,
"per_expected": [
{
"distance_mm": 0,
"matched_hole": [
15,
0
],
"pass": true,
"spec_xy": [
15,
0
]
},
{
"distance_mm": 0.004805896776009889,
"matched_hole": [
10.6066017178,
10.6066017178
],
"pass": true,
"spec_xy": [
10.61,
10.61
]
},
{
"distance_mm": 0,
"matched_hole": [
0,
15
],
"pass": true,
"spec_xy": [
0,
15
]
},
{
"distance_mm": 0.004805896776009889,
"matched_hole": [
-10.6066017178,
10.6066017178
],
"pass": true,
"spec_xy": [
-10.61,
10.61
]
},
{
"distance_mm": 0,
"matched_hole": [
-15,
0
],
"pass": true,
"spec_xy": [
-15,
0
]
},
{
"distance_mm": 0.004805896776009889,
"matched_hole": [
-10.6066017178,
-10.6066017178
],
"pass": true,
"spec_xy": [
-10.61,
-10.61
]
},
{
"distance_mm": 0,
"matched_hole": [
0,
-15
],
"pass": true,
"spec_xy": [
0,
-15
]
},
{
"distance_mm": 0.004805896776009889,
"matched_hole": [
10.6066017178,
-10.6066017178
],
"pass": true,
"spec_xy": [
10.61,
-10.61
]
}
],
"tolerance_mm": 0.2,
"unmatched_extras": []
}
5
step_roundtrippass
params + details
params: {
"type": "step_roundtrip",
"tolerance_pct": 1.5
}
details: {
"per_solid": [
{
"bbox": {
"max_abs_deviation_mm": 0,
"original_max": [
21.64780044555664,
21.64780044555664,
8
],
"original_min": [
-21.64780044555664,
-21.64780044555664,
0
],
"pass": true,
"roundtripped_max": [
21.64780044555664,
21.64780044555664,
8
],
"roundtripped_min": [
-21.64780044555664,
-21.64780044555664,
0
],
"tolerance_mm": 0.9262446088561898
},
"index": 0,
"pass": true,
"volume": {
"deviation_pct": 0,
"original_mm3": 10453.775854962194,
"pass": true,
"roundtripped_mm3": 10453.775854962194
}
}
],
"tolerance_pct": 1.5
}
Tool calls
0
anthropic.messages.createok
10150ms
args
{
"model": "claude-opus-4-7",
"max_tokens": 8000,
"system_chars": 1674,
"user_chars": 564
}What the model built
isometric render via vcad-render · the model's actual .vcad output, faceted at 28 segments per cylinder · download 20260428T231915Z-f8c3.vcad
.vcad source
{
"version": "0.1",
"nodes": {
"1": {"id": 1, "name": "oct_base", "op": {"type": "Cylinder", "radius": 21.6478, "height": 8, "segments": 8}},
"2": {"id": 2, "name": "oct_rotated", "op": {"type": "Rotate", "child": 1, "angles": {"x": 0, "y": 0, "z": 22.5}}},
"10": {"id": 10, "name": "hole0", "op": {"type": "Cylinder", "radius": 2.5, "height": 10, "segments": 32}},
"11": {"id": 11, "name": "hole0_t", "op": {"type": "Translate", "child": 10, "offset": {"x": 0, "y": 0, "z": -1}}},
"20": {"id": 20, "name": "h0", "op": {"type": "Translate", "child": 11, "offset": {"x": 15.0, "y": 0.0, "z": 0}}},
"21": {"id": 21, "name": "h1", "op": {"type": "Translate", "child": 11, "offset": {"x": 10.6066017178, "y": 10.6066017178, "z": 0}}},
"22": {"id": 22, "name": "h2", "op": {"type": "Translate", "child": 11, "offset": {"x": 0.0, "y": 15.0, "z": 0}}},
"23": {"id": 23, "name": "h3", "op": {"type": "Translate", "child": 11, "offset": {"x": -10.6066017178, "y": 10.6066017178, "z": 0}}},
"24": {"id": 24, "name": "h4", "op": {"type": "Translate", "child": 11, "offset": {"x": -15.0, "y": 0.0, "z": 0}}},
"25": {"id": 25, "name": "h5", "op": {"type": "Translate", "child": 11, "offset": {"x": -10.6066017178, "y": -10.6066017178, "z": 0}}},
"26": {"id": 26, "name": "h6", "op": {"type": "Translate", "child": 11, "offset": {"x": 0.0, "y": -15.0, "z": 0}}},
"27": {"id": 27, "name": "h7", "op": {"type": "Translate", "child": 11, "offset": {"x": 10.6066017178, "y": -10.6066017178, "z": 0}}},
"30": {"id": 30, "name": "u01", "op": {"type": "Union", "left": 20, "right": 21}},
"31": {"id": 31, "name": "u012", "op": {"type": "Union", "left": 30, "right": 22}},
"32": {"id": 32, "name": "u0123", "op": {"type": "Union", "left": 31, "right": 23}},
"33": {"id": 33, "name": "u01234", "op": {"type": "Union", "left": 32, "right": 24}},
"34": {"id": 34, "name": "u012345", "op": {"type": "Union", "left": 33, "right": 25}},
"35": {"id": 35, "name": "u0123456", "op": {"type": "Union", "left": 34, "right": 26}},
"36": {"id": 36, "name": "all_holes", "op": {"type": "Union", "left": 35, "right": 27}},
"40": {"id": 40, "name": "flange", "op": {"type": "Difference", "left": 2, "right": 36}}
},
"materials": {},
"part_materials": {},
"roots": [{"root": 40, "material": "default"}]
}