# Sag-Mesh Plane v0.1 — Certificate of Central Compromise (CCC) **File:** `sag-mesh-plane-certificate-central-compromise.md` **1. Design Name** Sag-Mesh Plane v0.1 **2. Central Compromise** The plane is formed from a deliberately under-spec PLA+ mesh grid printed only in the Y-axis, with large spacing (2–3 mm) that sags and barely fuses. Flatness and stiffness come from filling this flawed mesh with cheap cement/plaster. **3. Purpose of Compromise** To create a rigid, flat panel at extremely low cost by combining a weak, flawed printed lattice with abundant, globally available fill material. **4. Good-Enough Justification** The cement provides bulk stiffness; the mesh provides shape control. The result is good enough for jig boards, shelf shims, or tool bases. Not structural, not outdoor-rated—but usable, cheap, and replicable anywhere. **5. Replicability Proof** Anchor COTS: rapid-set cement mortar (globally ubiquitous). Alternate: Plaster of Paris or Perfect Cast for lighter builds. **6. Substitution Map (Optional)** - Heavier/stronger: Portland cement. - Lighter/weaker: Perfect Cast plaster. - Optional: mosquito net as a poor-man’s fiber mesh insert. **7. Failure Envelope** - Not for load-bearing or structural use. - Fails by visible cracking or edge chipping. - PLA creeps under heat; not to be left in hot sun or car. **8. Statement of Intent** This design embraces flawed printing and cheap fill to democratize stiff panels, trading durability and precision for cost, ubiquity, and accessibility.