origami cube bag 3d model

Design a single-sheet origami-inspired foldable delivery bag with exact internal dimensions of 150 mm × 150 mm × 150 mm when fully expanded. The structure must be lightweight, reusable, flexible, and capable of folding nearly flat for storage while maintaining a stable cubic shape during use. Use advanced origami engineering principles combining Miura-Ori, Waterbomb tessellation, and Kresling-inspired folding geometry to maximize strength, flexibility, and load distribution. The design should include reinforced edges, self-locking folds or tabs, structural ribs, and stress-distribution patterns to prevent buckling and deformation. The bag must safely carry a minimum payload of 5 kg and withstand repeated folding cycles exceeding 1000 uses. Generate a complete engineering presentation including front, side, top, and isometric 3D views, a fully flattened crease pattern, clearly marked mountain and valley fold lines, an exploded assembly view, a step-by-step folding sequence, a load-path