This is the first in a series of columns discussing tips and tricks for using a selective soldering machine. When soldering a double row header, or similar part, the solder can easily bridge at the end where the solder nozzle comes off. I don't know the technical term for this but I call it the "drag off." There are multiple arguments for the way you can drag off the end of the double row header. The most common recommendation is to drag off at a 45° angle.
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