After the layers were assembled, it was time for boning channels. The diagonal ones across the raised back keep the corset from digging into the shoulder blades when worn.
Most of this corset’s bones are 6mm cane (the kind of wood-like material often seen woven into chair seats). After cutting each length I smoothed out their ends with sandpaper. This photo also shows the bias binding being added to the hem.
Here’s a link to the first installment: Steampunk Corset, part 1