OCCT (Open-Cascade-SAS)MCADConfidence: Medium

When a STEP file declares uncertainty over about 6.283 mm (2 pi), a cone ending in an apex reads back wrong, invalid solid or zero-area conical face, with no error or warning from the reader.

Impact Analysis

Persona

Mechanical Designer

Team Size Impact

5x Multiplier

Prototype Delay

3 Days

Est. Annual Cost

$30,000

1 user · 1 month240 min
Rest of team960 min
Rest of year13,200 min

monthly_minutes × 12 × team_multiplier ÷ 60 × $75/hr = $30k/yr

$75/hr assumed rate.

Annual team-minutes decomposed from the reported monthly inputs.

Evidence & Sources

1 Sources

Open-Cascade-SAS/OCCT Issue #1677: STEP import: cone loses its apex when the file's uncertainty exceeds 2*pi mm

github.com

→

Analyst Notes

From the Grok pain-radar digests, Oct 26-27 2026 (Oct 26 12:41 PM ET through Oct 27 7:41 AM ET digests plus the Haitch editions). Verified live 2026-10-27: issue/PR/thread read; title and state confirmed.