In Robotic Metamaterials: A Modular System for Hands-On Configuration of Ad-Hoc Dynamic Applications, Scott Hudson, Zhitong Cui, and others design a modular system of structures made from a flexible square lattice, with each cell being roughly the size of the palm of a person’s hand.
Each lattice cell can be fitted with a simple robotic mechanism to turn it into an active cell. Active cells can then be programmed by recording motions made by the user deforming the lattice. The motion can then be played back by activating the lattice. Finally, the user can reprogram the lattice again if they wish, with or without changing the structure beforehand. This allows for the same structure to be reprogrammed for different uses multiple times over, and active cells can be removed and brought into other structures without needing to buy new parts. The user can also attach other lightweight materials to the lattice, like paper cutouts or thin cloths, to make a more clear and custom visual definition to the structure.
Overall, this system allows for users to quickly and easily create simple, flexible, reusable animated structures. It’s a perfect example of the kinds of unique and intuitive human-computer interfaces Scott Hudson discussed and advocated for in his recent colloquium talk. Approachable interfaces which allow users to operate a complex system with little to no technical knowledge or troubleshooting required, allowing a wide range of users to explore the system and find yet-unseen potential.