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Which risk increases when CNC mill's positional feedback drifts outside specified tolerances?

A)Surface finish exhibits chatter marks
B)Cutting tool catastrophic thermal runaway
C)Drive motor winding short circuits
D)Coolant system pump cavitation occurs

💡 Explanation

Chatter increases because the resonance frequency changes due to the positional error; this is dynamic instability. Therefore, the surface finish is affected, rather than tool damage or electromotive consequences under normal operating temperatures.

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