![]() The glossier the paper, the less likely the units will stay together, the more matte, the more difficult to fold the units. The thicker the paper, the less likely the units will stay together, the thinner, the more likely the units will rip. The two major qualities that affect it are thickness and texture. Unlike other forms of origami, modular origami is entirely dependent on the qualities of the paper used. Then, take the units with unopened pockets and put them on the front of the stick, giving you a stack with units that all have opened pockets.Continue to do this until you have around 10 units.P ut the two points of one unit into the two pockets of another unit.For this Instructable, stacking is important because of the model’s wings. Stacking is useful because it allows you to open up the pockets beforehand-units that have opened pockets are more aesthetically pleasing and structurally-sound. STACKING THE UNITS To store the units and keep track, I recommend stacking them in groups of 20. Above is a diagram with the parts labeled. UNIT ANATOMY Throughout this Instructable, I will be referencing certain parts of modular origami units. Bring the two corners up and fold the triangle in half.Tuck the top of the corners in under the central triangle.Line up the bottoms of the sides with the slope of triangle and crease, creating a diamond shape.Take the right side and also fold it diagonally, lining up with the median line.Now, take left side and fold it diagonally, lining up with the median line.Start by folding the paper in half lengthwise.In addition, this team's work could inspire the creation of other origami-based flexible structures that could serve as the backbone of other robotic systems. In the future, this new modular, origami-based design could be used to create other robots that can effectively tackle different real-world problems. The first consists of docking onto its base when in a narrow space, and the second, requiring the installation of a magnetic gripper at the top of its structure, entails holding and lifting objects. He, Wen and their colleagues evaluated their prototype in a series of experiments and found that it could successfully complete two different tasks. "The unified installation of steel wire-driven motors on the base endows the robot with a lightweight, interconnected inner space, high scalability, and backbone." "Three separate steel wires drive each module to achieve independent contraction or bending movement," He, Wen and their colleagues explained in their paper. This robot can both fold on itself to reduce its size and bend to the side. To assess the viability of their design and the robustness of the origami structures it is based on, the researchers created a prototype robot made of three flexible tube modules. ![]() As a result, the tubes that serve as the backbone of the modular robot are flexible and can be bent, compressed, and twisted without breaking. This material has several advantageous characteristics, including flexibility and a high resistance when bent or compressed. ![]() These tubes are based on a sheet of polyvinyl chloride (PVC), a robust material sometimes used to create medical devices, pipes, and insulations for cables. This fold has been used to create different technologies that may benefit from this change in shape, including large solar panels for satellites, which can be launched while folded on themselves and then spread out in space.Īs part of their study, He, Wen and their colleagues used this fold to create flexible tubes, which then served as the basis of their robot. The Miura fold is an origami pattern that results in the folding of a flat surface into a structure with a smaller area. "In this study, a Miura-derived origami tube is designed and its precise circular closing condition and mechanical properties are analyzed, revealing that the origami tube has programmable stiffness characteristics." "Folding a flat sheet under a specific crease pattern may form a three-dimensional origami tube, which has been proven to exhibit unique mechanical properties and has wide engineering applications," Junfeng He, Guilin Wen and their colleagues told Tech Xplore. This robot, introduced in a pre-print paper published on SSRN, can contract and bend following specific patterns to complete different tasks. ![]() Researchers at Guangzhou University, Yanshan University, and other universities in China recently created a new modular continuous robot constructed of a series of tubes based on a specific origami fold, known as the Miura fold. This is because it offers predefined models and patterns through which 2D sheets of materials can be turned into elaborate 3D structures with different mechanical properties. Origami, the Asian art of folding paper to create 3D decorative shapes, can be a valuable inspiration for the creation of modular robotic structures. ![]()
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