Fig. 4: Sequential folding and unfolding of the magneto-origami strips.
From: High-throughput fabrication of soft magneto-origami machines
a–c The schematic illustrations and experimental demonstrations of magneto-origami strips programmed with alternating magnetic polarity patterns. The magneto-origami strips can be sequentially folded into predesigned 3D shapes: a lamellar, b triangular, and c square, by moving and rotating the permanent magnet. Quantitative control schemes are provided in which rational angle \(\alpha \) (left axis, blue curve) and distance d between the magnet and magneto-origami strip is plotted as a function of the magnet position. d Experimental demonstrations and quantitative control schemes of sequential folding of magneto-origami strips into letters “b”, “m”, and “e”.
