good-enough/core-docs/good-enough-4u0-cots-anchor-standard.md

Good Enough 4u0 — COTS Anchor Standard

File: good-enough-4u0-cots-anchor-standard.md

Purpose

Ensure every design has at least one Anchor COTS part: a globally common, indefinitely available component that stabilizes the design and makes replication realistic.

Anchor Criteria

• Plentiful: Mass-produced at global scale; no single-supplier risk.
• Future-proof: Likely to remain in production for decades (building trades, agriculture, logistics).
• Local availability: Stocked in hardware stores, farm suppliers, big-box retailers.
• Interchangeable: Accepts substitutes (different brand, slight dimension variations).
• Non-exotic: No boutique, hobbyist-only, or import-only parts.

Example Anchors

• PVC pipe / EMT conduit.
• Mosquito screen.
• Hardware cloth / wire mesh.
• Zip ties.
• Pallet straps.
• Common bolts/nuts/washers (M6 / 1/4″).

Documentation Requirements

• Anchor Identification: “This design anchors on 1/2″ EMT conduit.”
• Substitution Map: “Can also use 1/2″ PVC, bamboo pole, or hardwood dowel.”
• Failure Note: Explain what changes if a weaker/stronger substitute is used.