09-15-2012, 08:34 PM
Whenever I replace a spool of wire, I pass the wire through an ear plug (the squishy disposable ones) and then feed it into the feed rollers. It prevents the wire from introducing any crap into the liner. This isn't my own idea, it was suggested to me by a welding tech when I had my liner replaced a few years back.
Hunting American dentists since 2015.