Begin to build the frame by cutting sterling wire and making a cage by creating u-shaped pieces with the wire. At times, place your gemstone or object in place to make sure the cage is going to fit over the stone.
Using the third arm to hold the wire in place on the etched plate, solder with hard solder on the first wire. Then with each subsequent u-shaped wire, solder down with medium solder working your way down to easy solder. Quench, pickle and clean, repeating this process, till all sterling wire pieces are soldered into place. Solder the bail together.