This piece is a return to my long-dormant diagonal shift series. I played a bit before with diagonal shifts based on a cone instead of on a cylinder, along with a test fold of a diagonal shift based on an out-turned cone. Similar to my previous downhill diagonal shifts, the shift in this piece is really a stack of two bends and one shift. To get all the angles correct, the bends are cone-based bends, and the shift is based on an out-turned cone instead of an in-turned cone.
I also included a photo of the painted paper below. For most of my diagonal shifts, I’ve used sine waves for the painted patterns and let the painted lines naturally zig-zag a bit as they crossed the pleats. For this piece, since the narrowest parts of the black stripes are in places where the pleats are the widest, I incorporated zig-zags into the painted pattern. That made for a lot of measuring reference points, but it smooths out the painted lines nicely.
