Step 4Solder the large rings
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We now need to solder the larger jump rings. I cut a bunch of little squares of sheet solder (I used medium 70% in this case, but would recommend starting with 65% easy solder), I brush some flux on each cut, put the ring on a heatproof plate, put a little square of solder underneath the cut, and then heat with a small torch until the solder flows into the joint. I generally put the solder in contact with the ring, but underneath the ring. Because solder tends to flow to hotter areas, and because the torch will heat the top more than the bottom, the solder will suddenly "jump" and disappear into the crack.