← mecheval / run / a3-octagonal-flange-01 / openai-direct-gpt-5-mini / 20260428T233213Z-12bc
run 20260428T233213Z-12bc
Summary
| status | fail |
| score | 0.83 (5/6) |
| submission | self-run |
| model | openai-direct-gpt-5-mini (openai) |
| started | 2026-04-28T23:32:13.384Z |
| ended | 2026-04-28T23:33:19.367Z |
| tokens | 668 in · 5,967 out · 6,635 total |
| wallclock | 65.6s |
| tool calls | 1 |
| task hash | 91605c57469285ce… |
| vcad hash | a9a25d9042526229… |
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
X 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": [
20,
20,
8
],
"actual_min": [
-20,
-20,
0
],
"deviation_max": [
-1.6499999999999986,
0,
0
],
"deviation_min": [
1.6499999999999986,
0,
0
],
"max_abs_deviation_mm": 1.6499999999999986,
"tolerance_mm": 0.3
}
2
mass_propspass
params + details
params: {
"type": "mass_props",
"volume_mm3": 9347.81,
"tolerance_pct": 1.5
}
details: {
"volume": {
"actual_mm3": 9355.289000244959,
"deviation_pct": 0.08000804728550351,
"pass": true,
"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
],
[
10.60660172,
10.60660172,
5
],
[
0,
15,
5
],
[
-10.60660172,
10.60660172,
5
],
[
-15,
0,
5
],
[
-10.60660172,
-10.60660172,
5
],
[
0,
-15,
5
],
[
10.60660172,
-10.60660172,
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": 0.004805893664739794,
"matched_hole": [
10.60660172,
10.60660172
],
"pass": true,
"spec_xy": [
10.61,
10.61
]
},
{
"distance_mm": 0,
"matched_hole": [
0,
15
],
"pass": true,
"spec_xy": [
0,
15
]
},
{
"distance_mm": 0.004805893664739794,
"matched_hole": [
-10.60660172,
10.60660172
],
"pass": true,
"spec_xy": [
-10.61,
10.61
]
},
{
"distance_mm": 0,
"matched_hole": [
-15,
0
],
"pass": true,
"spec_xy": [
-15,
0
]
},
{
"distance_mm": 0.004805893664739794,
"matched_hole": [
-10.60660172,
-10.60660172
],
"pass": true,
"spec_xy": [
-10.61,
-10.61
]
},
{
"distance_mm": 0,
"matched_hole": [
0,
-15
],
"pass": true,
"spec_xy": [
0,
-15
]
},
{
"distance_mm": 0.004805893664739794,
"matched_hole": [
10.60660172,
-10.60660172
],
"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": [
20,
20,
8
],
"original_min": [
-20,
-20,
0
],
"pass": true,
"roundtripped_max": [
20,
20,
8
],
"roundtripped_min": [
-20,
-20,
0
],
"tolerance_mm": 0.856971411425142
},
"index": 0,
"pass": true,
"volume": {
"deviation_pct": 0,
"original_mm3": 9355.289000244959,
"pass": true,
"roundtripped_mm3": 9355.289000244959
}
}
],
"tolerance_pct": 1.5
}
Tool calls
0
openai.chat.completions.createok
65600ms
args
{
"model": "gpt-5-mini",
"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 20260428T233213Z-12bc.vcad
.vcad source
{
"version": "0.1",
"nodes": {
"1": {
"id": 1,
"name": "square_A",
"op": {
"type": "Cube",
"size": {
"x": 40,
"y": 40,
"z": 8
}
}
},
"2": {
"id": 2,
"name": "square_A_centered",
"op": {
"type": "Translate",
"child": 1,
"offset": {
"x": -20,
"y": -20,
"z": 0
}
}
},
"3": {
"id": 3,
"name": "square_B",
"op": {
"type": "Cube",
"size": {
"x": 40,
"y": 40,
"z": 8
}
}
},
"4": {
"id": 4,
"name": "square_B_centered",
"op": {
"type": "Translate",
"child": 3,
"offset": {
"x": -20,
"y": -20,
"z": 0
}
}
},
"5": {
"id": 5,
"name": "square_B_rot45",
"op": {
"type": "Rotate",
"child": 4,
"angles": {
"x": 0,
"y": 0,
"z": 45
}
}
},
"6": {
"id": 6,
"name": "octagonal_prism_body",
"op": {
"type": "Intersection",
"left": 2,
"right": 5
}
},
"7": {
"id": 7,
"name": "hole_cyl_0",
"op": {
"type": "Cylinder",
"radius": 2.5,
"height": 8,
"segments": 32
}
},
"8": {
"id": 8,
"name": "hole_cyl_45",
"op": {
"type": "Cylinder",
"radius": 2.5,
"height": 8,
"segments": 32
}
},
"9": {
"id": 9,
"name": "hole_cyl_90",
"op": {
"type": "Cylinder",
"radius": 2.5,
"height": 8,
"segments": 32
}
},
"10": {
"id": 10,
"name": "hole_cyl_135",
"op": {
"type": "Cylinder",
"radius": 2.5,
"height": 8,
"segments": 32
}
},
"11": {
"id": 11,
"name": "hole_cyl_180",
"op": {
"type": "Cylinder",
"radius": 2.5,
"height": 8,
"segments": 32
}
},
"12": {
"id": 12,
"name": "hole_cyl_225",
"op": {
"type": "Cylinder",
"radius": 2.5,
"height": 8,
"segments": 32
}
},
"13": {
"id": 13,
"name": "hole_cyl_270",
"op": {
"type": "Cylinder",
"radius": 2.5,
"height": 8,
"segments": 32
}
},
"14": {
"id": 14,
"name": "hole_cyl_315",
"op": {
"type": "Cylinder",
"radius": 2.5,
"height": 8,
"segments": 32
}
},
"15": {
"id": 15,
"name": "hole_0_pos",
"op": {
"type": "Translate",
"child": 7,
"offset": {
"x": 15,
"y": 0,
"z": 0
}
}
},
"16": {
"id": 16,
"name": "hole_45_pos",
"op": {
"type": "Translate",
"child": 8,
"offset": {
"x": 10.60660172,
"y": 10.60660172,
"z": 0
}
}
},
"17": {
"id": 17,
"name": "hole_90_pos",
"op": {
"type": "Translate",
"child": 9,
"offset": {
"x": 0,
"y": 15,
"z": 0
}
}
},
"18": {
"id": 18,
"name": "hole_135_pos",
"op": {
"type": "Translate",
"child": 10,
"offset": {
"x": -10.60660172,
"y": 10.60660172,
"z": 0
}
}
},
"19": {
"id": 19,
"name": "hole_180_pos",
"op": {
"type": "Translate",
"child": 11,
"offset": {
"x": -15,
"y": 0,
"z": 0
}
}
},
"20": {
"id": 20,
"name": "hole_225_pos",
"op": {
"type": "Translate",
"child": 12,
"offset": {
"x": -10.60660172,
"y": -10.60660172,
"z": 0
}
}
},
"21": {
"id": 21,
"name": "hole_270_pos",
"op": {
"type": "Translate",
"child": 13,
"offset": {
"x": 0,
"y": -15,
"z": 0
}
}
},
"22": {
"id": 22,
"name": "hole_315_pos",
"op": {
"type": "Translate",
"child": 14,
"offset": {
"x": 10.60660172,
"y": -10.60660172,
"z": 0
}
}
},
"23": {
"id": 23,
"name": "holes_union_1",
"op": {
"type": "Union",
"left": 15,
"right": 16
}
},
"24": {
"id": 24,
"name": "holes_union_2",
"op": {
"type": "Union",
"left": 23,
"right": 17
}
},
"25": {
"id": 25,
"name": "holes_union_3",
"op": {
"type": "Union",
"left": 24,
"right": 18
}
},
"26": {
"id": 26,
"name": "holes_union_4",
"op": {
"type": "Union",
"left": 25,
"right": 19
}
},
"27": {
"id": 27,
"name": "holes_union_5",
"op": {
"type": "Union",
"left": 26,
"right": 20
}
},
"28": {
"id": 28,
"name": "holes_union_6",
"op": {
"type": "Union",
"left": 27,
"right": 21
}
},
"29": {
"id": 29,
"name": "holes_union_all",
"op": {
"type": "Union",
"left": 28,
"right": 22
}
},
"30": {
"id": 30,
"name": "octagonal_flange_with_holes",
"op": {
"type": "Difference",
"left": 6,
"right": 29
}
}
},
"materials": {},
"part_materials": {},
"roots": [
{
"root": 30,
"material": "default"
}
]
}