Lost-Wax Jewelry .STL Metal-Tree Weight (14K / 18K / 925 / Pt) & Flask Investment Calculator

Deterministic Signed tetrahedron divergence-theorem 3D mesh volume integral + specific-gravity alloy density lookup + hydrostatic sprue-button head pressure engine (.stl, .obj, .pdf, .csv) built for Kerr Satin Cast, Ransom & Randolph, Rio Grande, Formlabs Castable — zero-upload ephemeral Wasm RAM execution.

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