CoreXY / CNC Accelerometer (.csv) Cross-Spectral Belt-Tension & Input-Shaper Analyzer

Deterministic Welch windowed Power Spectral Density (PSD) + X/Y cross-coherence modal coupling matrix & ZV/MZV/EI impulse residual-vibration simulation engine (.csv, .cfg, .json) built for Klipper, Voron Design, RatRig, BigTreeTech — zero-upload ephemeral Wasm RAM execution.

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