rulecad (JoniBach)VerificationConfidence: Medium

A first 3D-printed disc launcher printed as a total failure, with parts fused, slides bound and pins fallen out, after being sized at 2 percent strain while PLA yields around 1.5 percent.

Impact Analysis

Persona

Hardware 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

JoniBach/rulecad PR #102: Lamina mechanisms: flat prints checked through their whole cycle, with shaped flexures and finite-element peaks

github.com

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Analyst Notes

From the Grok pain-radar digests, Nov 1-2 2026 (Nov 1 8:41 AM ET through Nov 2 7:41 AM ET digests plus the Haitch editions). Verified live 2026-11-02: issue/PR read; title and state confirmed.