OCCT (Open-Cascade-SAS)MCADConfidence: Medium

A guided pipe sweep that OCCT 7.9.3 builds exactly comes out the wrong volume in 8.0.1, thinner than spec near the ends. Tighter tolerance made it worse: 0.937 thick vs 1.

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 #1682: BRepOffsetAPI_MakePipeShell with a guide distorts a straight sweep in 8.0.1 (exact in 7.9.3)

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.