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evo-mass-report-output

Orchestrates the full pipeline from STL parsing to JSON mass report output. Coordinates parsing, component analysis, volume computation, unit conversion, and mass calculation.

tasks-evolved/3d-scan-calc/environment/skills/evo-mass-report-output/SKILL.md

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Sep 10, 2026
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Apache-2.0

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# evo-mass-report-output

End-to-end pipeline orchestrator for mass calculation from binary STL files.

## Pipeline
1. Parse binary STL -> triangles with material IDs
2. Find largest connected component (vertex-based adjacency, 4-decimal quantization)
3. Extract Material ID from first triangle of largest component
4. Look up density from material density table
5. Compute volume (mm³) using signed tetrahedron method
6. Convert mm³ to cm³ (divide by 1000)
7. Mass = volume_cm³ × density_g/cm³
8. Round to 2 decimal places
9. Write JSON: {"main_part_mass": X.XX, "material_id": N}