We used construction paper sheets (Strathmore 500 Series 3-PLY BRISTOL; thickness of the paper is 0.5 mm) for the origami part (see Fig. 1B) and extruded acrylic sheets (thickness of 1.6 mm) for the interfacial polygon (insets of Fig. 1, C and D). These two materials were tailored by a laser cutting machine (VLS 4.6, Universal Laser Systems), as shown in fig. S1A. For the crease of the TCO unit cell, we designed customized crease lines based on the compliant mechanisms (fig. S1B). By using this crease pattern, each crease line shows enhanced fatigue-resistant property, providing repeatable and consistent folding behavior. It should also be noted that this crease pattern (e.g., length, width, and distance of cut slits) affects the compressive force-displacement behavior of the TCO cell significantly. The weight and moment of inertia of the interfacial polygon including a sleeve bearing and markers are 49.4 g and 5.32 ×10−5 kg m2, respectively. The weight of the triangulated facets made of paper is only 3.6 g. Therefore, the inertia of the side facets is negligible compared to the polygon. The assembling process of a single TCO cell is shown in movie S1.

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