← mecheval / run / a1-stepped-shaft-01 / openai-direct-gpt-5 / 20260428T212657Z-ddcf
run 20260428T212657Z-ddcf
Summary
| status | PASS |
| score | 1.00 (4/4) |
| submission | self-run |
| model | openai-direct-gpt-5 (openai) |
| started | 2026-04-28T21:26:57.420Z |
| ended | 2026-04-28T21:27:08.908Z |
| tokens | 598 in · 771 out · 1,369 total |
| wallclock | 11.5s |
| tool calls | 1 |
| task hash | 0b362741f05ae514… |
| vcad hash | b04a75609aa84b5d… |
Prompt
Make a stepped shaft along the Z axis: a base cylinder of diameter 40mm and height 10mm sitting on the XY plane (z = 0 to z = 10), with a smaller coaxial cylinder of diameter 20mm and height 15mm stacked directly on top (z = 10 to z = 25). The result is a single solid.
Checks
0
valid_solidpass
params + details
params: {
"type": "valid_solid"
}
details: {
"root_count": 1,
"solids_produced": 1
}
1
bboxpass
params + details
params: {
"type": "bbox",
"min": [
-20,
-20,
0
],
"max": [
20,
20,
25
],
"tolerance_mm": 0.1
}
details: {
"actual_max": [
20,
20,
25
],
"actual_min": [
-20,
-20,
0
],
"deviation_max": [
0,
0,
0
],
"deviation_min": [
0,
0,
0
],
"max_abs_deviation_mm": 0,
"tolerance_mm": 0.1
}
2
mass_propspass
params + details
params: {
"type": "mass_props",
"volume_mm3": 17278.76,
"tolerance_pct": 1
}
details: {
"volume": {
"actual_mm3": 17167.94835963603,
"deviation_pct": 0.641317087360255,
"pass": true,
"spec_mm3": 17278.76,
"tolerance_pct": 1
}
}
3
step_roundtrippass
params + details
params: {
"type": "step_roundtrip",
"tolerance_pct": 1
}
details: {
"per_solid": [
{
"bbox": {
"max_abs_deviation_mm": 0,
"original_max": [
20,
20,
25
],
"original_min": [
-20,
-20,
0
],
"pass": true,
"roundtripped_max": [
20,
20,
25
],
"roundtripped_min": [
-20,
-20,
0
],
"tolerance_mm": 0.6184658438426491
},
"index": 0,
"pass": true,
"volume": {
"deviation_pct": 2.119052743451309e-14,
"original_mm3": 17167.94835963603,
"pass": true,
"roundtripped_mm3": 17167.948359636033
}
}
],
"tolerance_pct": 1
}
Tool calls
0
openai.chat.completions.createok
11455ms
args
{
"model": "gpt-5",
"max_tokens": 8000,
"system_chars": 1632,
"user_chars": 331
}What the model built
isometric render via vcad-render · the model's actual .vcad output, faceted at 28 segments per cylinder · download 20260428T212657Z-ddcf.vcad
.vcad source
{
"version": "0.1",
"nodes": {
"1": { "id": 1, "name": "Base Cylinder", "op": { "type": "Cylinder", "radius": 20, "height": 10, "segments": 32 } },
"2": { "id": 2, "name": "Upper Cylinder Raw", "op": { "type": "Cylinder", "radius": 10, "height": 15, "segments": 32 } },
"3": { "id": 3, "name": "Upper Cylinder Translated", "op": { "type": "Translate", "child": 2, "offset": { "x": 0, "y": 0, "z": 10 } } },
"4": { "id": 4, "name": "Stepped Shaft Union", "op": { "type": "Union", "left": 1, "right": 3 } }
},
"materials": {},
"part_materials": {},
"roots": [{ "root": 4, "material": "default" }]
}