Amps per electrode, wire speed, heat input and duty cycle — fab-shop numbers, free.
Current window for an electrode size — the 35–40 A/mm rule plus position trim.
Wire feed speed from target current — by wire size (burn-off relation).
kJ/mm from volts, amps and travel speed — with process efficiency.
Leg size needed for a load — and the min/max size rules checked.
Can your machine hold this current? Duty-cycle math in both directions.
Rods needed from deposited weight — stub loss and efficiency included.
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