A new design of mine, Dune Tessellation (long slit variant).
I came up with this model when looking for new ways to create pixel-based pictures with tessellations. Individual dunes can be used as “on” pixels and a matching flat molecule (not used here) can be used for “off” pixels. The pixels are not square but this makes them more interesting. One pattern which is an obvious choice for triangular pixels is Sierpiński’s Triangle.
A disadvantage of this design is that the dunes create lots of tension in the paper and in practice collapsing the model and having it stay that way is quite hard. Using Tant paper, which is springy but not the most springy, I had to resort to wet folding to get the model into shape. Fortunately, there is a short slit variant which promises to stay in collapsed state with less effort on the folder’s part.