@article{IonLindlbauerHerholzetal.2019,
  author    = {Ion, Alexandra and Lindlbauer, David and Herholz, Philipp and Alexa, Marc and Baudisch, Patrick Markus},
  title     = {Understanding Metamaterial Mechanisms},
  series = {Proceedings of the 2019 CHI Conference on Human Factors in Computing Systems},
  journal   = {Proceedings of the 2019 CHI Conference on Human Factors in Computing Systems},
  publisher = {Association for Computing Machinery},
  address   = {New York},
  isbn      = {978-1-4503-5970-2},
  doi       = {10.1145/3290605.3300877},
  pages     = {14},
  year      = {2019},
  abstract  = {In this paper, we establish the underlying foundations of mechanisms that are composed of cell structures-known as metamaterial mechanisms. Such metamaterial mechanisms were previously shown to implement complete mechanisms in the cell structure of a 3D printed material, without the need for assembly. However, their design is highly challenging. A mechanism consists of many cells that are interconnected and impose constraints on each other. This leads to unobvious and non-linear behavior of the mechanism, which impedes user design. In this work, we investigate the underlying topological constraints of such cell structures and their influence on the resulting mechanism. Based on these findings, we contribute a computational design tool that automatically creates a metamaterial mechanism from user-defined motion paths. This tool is only feasible because our novel abstract representation of the global constraints highly reduces the search space of possible cell arrangements.},
  language  = {en}
}
@misc{IonBaudisch2018,
  author    = {Ion, Alexandra and Baudisch, Patrick Markus},
  title     = {Metamaterial Devices},
  publisher = {Association for Computing Machinery},
  address   = {New York},
  isbn      = {978-1-4503-5819-4},
  doi       = {10.1145/3214822.3214827},
  pages     = {2},
  year      = {2018},
  abstract  = {In our hands-on demonstration, we show several objects, the functionality of which is defined by the objects' internal micro-structure. Such metamaterial machines can (1) be mechanisms based on their microstructures, (2) employ simple mechanical computation, or (3) change their outside to interact with their environment. They are 3D printed from one piece and we support their creating by providing interactive software tools.},
  language  = {en}
}
@article{BaudischSilberKommanaetal.2019,
  author    = {Baudisch, Patrick Markus and Silber, Arthur and Kommana, Yannis and Gruner, Milan and Wall, Ludwig and Reuss, Kevin and Heilman, Lukas and Kovacs, Robert and Rechlitz, Daniel and Roumen, Thijs},
  title     = {Kyub},
  series = {Proceedings of the 2019 CHI Conference on Human Factors in Computing Systems},
  journal   = {Proceedings of the 2019 CHI Conference on Human Factors in Computing Systems},
  publisher = {Association for Computing Machinery},
  address   = {New York},
  isbn      = {978-1-4503-5970-2},
  doi       = {10.1145/3290605.3300796},
  pages     = {1 -- 12},
  year      = {2019},
  abstract  = {We present an interactive editing system for laser cutting called kyub. Kyub allows users to create models efficiently in 3D, which it then unfolds into the 2D plates laser cutters expect. Unlike earlier systems, such as FlatFitFab, kyub affords construction based on closed box structures, which allows users to turn very thin material, such as 4mm plywood, into objects capable of withstanding large forces, such as chairs users can actually sit on. To afford such sturdy construction, every kyub project begins with a simple finger-joint "boxel"-a structure we found to be capable of withstanding over 500kg of load. Users then extend their model by attaching additional boxels. Boxels merge automatically, resulting in larger, yet equally strong structures. While the concept of stacking boxels allows kyub to offer the strong affordance and ease of use of a voxel-based editor, boxels are not confined to a grid and readily combine with kuyb's various geometry deformation tools. In our technical evaluation, objects built with kyub withstood hundreds of kilograms of loads. In our user study, non-engineers rated the learnability of kyub 6.1/7.},
  language  = {en}
}