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GASPER:
Why have you not tried working at higher baud rates than 4800? How long is your cable? How large are your largest files? How small the smallest?
Old age is not the reason your cables fail, but rather the choice of insulating material by HAAS and that the insulation is probably soaked in coolant for the X-axis. PVC insulation is make flexible by the addition of plasticizers, and the coolant leaches these out of the PVC over time. In some cases in as little as 6 months with hydraulic oil.
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