ArtMetal

Copper oxidizes fast and that is why a paste flux will work better for you than the liquids. Silver is much easier to do this with and the new Argentium silver is even easier. Practice helps. Can you melt the tip of the wire when it is laying flat and you are not trying to ball up the end? If you find this temperature than it might be easier for you to adjust that to just balling up the end.

marilyn