Power Cost for CNC Machining - WOODWEB
If your power cost is 10cents/KWh it then costs you at most $4/hr for power. Realistically, you're not operating the spindle at max power ever and the pumps probably aren't maxing out either - so your actual cost is probably less than half - or around $2/hr. You could fine tune this a lot more but I don't see the point.
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