Introduction and folding instructions on author’s page
My folding tips
Since the units used for this model are long and skinny, it helps a lot to cut the paper in such way that the units’ long side runs parallel to the paper’s grain (machine direction). Otherwise, folding may be difficult even with a bone folder, especially for thick paper.
This model is quite a bit more challenging to assemble than Five Intersecting Tetrahedra, but the symmetry and spatial relations between neighboring units help a lot. Unfortunately, they are much better visible in the actual physical model than any picture can convey. I hope the 3D anaglyph shown here can be of some help for folders trying to assemble this model.