Chainlink Unit

This modular design is one of my favorite original modular designs.
With 30 pieces you can summon the icosidodecahedron, which is usually reserved for 60 pieces, instead of 30. This is because the unit ties at its tips into equilaterial triangles and it leaves an open space between. It is a fanastic design, and I have tried to make instructions for it, but there is a step that requires me to go into 3D visualization, as in, the model has to be folded in the air a bit, it isnt a flat piece of paper laying on the table.
Many memories attached to this one.