solidcore (tangency-labs)MCADConfidence: Medium

A plate and cylinder union with the cylinder past the plate's free edge cannot be filleted with the SMLib kernel (status 1001 at every radius), while the same solid rounds fine with OCCT and exports valid STEP. The issue was written by the reporter's AI agent.

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

tangency-labs/solidcore Issue #1410: SMLib: fillet fails (1001) on a plate–cylinder union whose junction edge ends at a free side face; OCCT rounds the same solid

github.com

→

Analyst Notes

From the Grok pain-radar digests, Oct 28-29 2026 (Oct 28 8:41 AM ET through Oct 29 early-morning Haitch editions). Verified live 2026-10-29: issue/PR read; title and state confirmed.