I agree. The coolant nozzles suck on the brother machines too. Too far away from the tool. When dealing with gummy materials a perfect blast of coolant is critical for drilling/slotting.My experience with 6063 is it ran fine as long as you got the coolant to the cut well. As soon as the coolant wasn't quite right, spinweld! With this in mind, I would say try to improve coolant delivery instead of slowing it down.
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