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engine (axioval)MCADConfidence: Medium

Downstream of openbimrs/ifc #585: IFC models with no declared length unit used to be read in metres; now they are refused, and this project has to change its public API so a missing unit becomes refused evidence, not a panic or a metre default.

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
axioval/engine Issue #467: build(ifc): move to openbim-ifc 0.39 and refuse models without a declared length unit
github.com
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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.