The Crossed Diagonals — the fold, played. The music is derived from the crease pattern: angles become intervals, layers become voices. FSA-0021 · https://foldsong.com/atlas/the-crossed-diagonals/ #origami #papercraft

The Crossed Diagonals — how it folds, step by step. FSA-0021 · https://foldsong.com/atlas/the-crossed-diagonals/ #origami #papercraft

The Crossed Diagonals — flat-foldability, checked not claimed. 16 creases · 1 interior vertices · 3 mountain / 5 valley · sector angles 45°–45° Kawasaki and Maekawa hold at all 1 interior vertices. A vertex folds flat only… https://foldsong.com/atlas/the-crossed-diagonals/ #origami #papercraft

The Crossed Diagonals the shape a sheet always half remembers A forgotten paper balloon, softened by heat, snaps back to its cube shape with one breath… https://foldsong.com/atlas/the-crossed-diagonals/ #origami #papercraft

The Four Inner Corners — where it comes from. Traditional/public-domain term (literal): square-twist. The canonical crease pattern was read from the `tests/files/fold/square-twist.fold` file in the `rabbit-ear/rabbit-ear`… https://foldsong.com/atlas/the-four-inner-corners/ #origami #papercraft

“Four corners twist inward until the sheet locks itself flat, a small mechanical surprise that turns pressed creases into sudden, quiet motion.” The Four Inner Corners · FSA-0020 https://foldsong.com/atlas/the-four-inner-corners/ #origami #papercraft

The Four Inner Corners — the fold, played. The music is derived from the crease pattern: angles become intervals, layers become voices. FSA-0020 · https://foldsong.com/atlas/the-four-inner-corners/ #origami #papercraft