LayerLock: Layer-Wise Collision-Free Multi-Robot Additive Manufacturing Using Topologically Interlocked Space-Filling Shapes. - Vinayak R. Krishnamurthy; Laxmi Poudel; Matthew Ebert; Daniel H. Weber; Rencheng Wu; Wenchao Zhou; Ergun Akleman; Zhenghui Sha (Comput. Aided Des., 2022)