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Retipping a claw on a solitaire diamond ring in 18ct white gold using the Lampert PUK 3 Professional Plus welder on Standard 7ms 30% power.The claw is thin and welds into a ball so I have to weld onto it then rotate the tipping wire down onto the diamond, pivoting at the edge of the diamond while welding at that point. The claws only need to be shaped afterwards.