Fig. 2: The process of designing a seamless surface structure with a back frame based on an origami tube.
From: Thick-panel origami structures forming seamless surfaces
a Transformation of an origami tube into a thick-panel structure. i Original origami tube in the fully deployed state with a flat top layer and intermediate-folding bottom layer. ii Quasi-flat-folded tube as an intermediate step. iii Thick-panel structure with rotational joints and motion-compatible grooves, though lacking a seamless top surface. b Refined thick-panel structure with a seamless top surface, achieved by removing the uneven green panel and extending neighboring panels. c Seamless thick-panel structure adapted into a quadrangular top surface. d Application of the seamless design approach to a curved-trajectory origami structure, showcasing its adaptability to complex geometries.
