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solidcraft (tangency-labs)MCADConfidence: Medium

Booleans on lofted B-spline bodies are 1 to 2 orders of magnitude slower than on prismatic bodies, and a join between bodies sharing faces of the same loft fails after 5 min 11 s with 'no result', while the same part builds fine in FreeCAD/OCCT.

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/solidcraft Issue #6554: Booleans on lofted (B-spline) bodies take 6–41 s per step; a join with faces shared with the same loft fails after 5 min (0.22.0)
github.com
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Analyst Notes

From the Grok pain-radar digest, Oct 24-25 2026 (Oct 24 evening to Oct 25 morning slots). Verified live 2026-10-25: issue/PR read on GitHub; title and state confirmed.