EC-1 Wireless Controller: example OPD

Synthetic example. EC-1 and its maker, Example Devices, are fictional. Every value is made up to show what an Open Product Description holds.

An OPD describes a shipped product and the factory line that builds it. Every value says where it came from and how far to trust it.

• Start here: BUILDCARD.md, the summary, metrics and known gaps.
• The whole thing in one file: opd.yaml. Feed it to an agent; see AGENTS.md.
• See it: model/ec-1.glb (assembled), model/ec-1-exploded.glb, line/layout.glb (the 11-station cell).
• Check it: REPRODUCE.md, and python analysis/spreads.py to rebuild every number from raw/.

Parts	23, with STEP CAD for every mechanical part
Line	16 operations on 11 stations, 30 s cycle against a 36 s takt
Quality	6 inspection plans, 11 tests, 12 PFMEA rows
Lessons	4 issues with their fixes
Variants	5 candidates; recommended: stick connector plus battery preload, 94.7% simulated RTY
Cost	10.20 USD materials, 12.97 USD landed