MaD (RileyMcCarthy)ECADConfidence: Medium

An isolator's drive-side ground sat on an orphan net with no EN_GND label and no link to the pour, so as drawn STEP, DIR and ENA could not drive the servo; ERC showed only 9 pre-existing errors and did not flag the orphan net, and only a software-in-the-loop migration caught it.

Impact Analysis

Persona

Electrical Engineer

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

RileyMcCarthy/MaD PR #299: fix(hardware): ground IC14's drive side (GND2) to EN_GND on the Edge board

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.