Vid-20230122-wa0373.mp4 (2026)

Apply a small amount of glue to the tabs and hold for 30 seconds. Start with a perfectly square piece of paper. Crease sharply with your fingernail for better precision. Follow "inside reverse folds" for complex corners. Modular Paper Units: Fold several identical "units" first.

Use a "mountain fold" (fold down) or "valley fold" (fold up) as indicated by dashed lines. VID-20230122-WA0373.mp4

Slide the tabs of one unit into the pockets of the next—no glue is usually needed. Apply a small amount of glue to the