Fun With Corrugations

I've always liked the look of Ray Schamp's corrugations, but I'd never really thought of making something similar. I was thinking of using more acute angles with the basic waterbomb corrugation (such as on Sipho Mabona's Fugu). Eventually, I tried the same thing with obtuse angles, which lead me to the idea of going from small to big. I didn't that I would be able to fold it flat, but it ended up that it does! The mountain / valley theme of the model lead me to the name Erosion. Here is the CP:


There isn't much to do in the way of details. The CP folds the whole model. Because of the change in angles, the model makes a sort of oval shape when flat. Here are some pictures.