This lecture covers the design of flexible guidances, focusing on combining flexible joints to create parallel blade tables. The instructor explains the method for analyzing structures composed of two rigid blocks connected by orthogonal flexible joints. The lecture includes an intuitive method for measuring rigidity, identifying hyperstatic elements, and performing controls to ensure the system's stability. The concept of local freedom and the importance of avoiding it are discussed, along with the optimization of structures using flexible columns. The lecture also delves into the implementation of pushers for motorizing parallel blade tables, showcasing the benefits of using flexible columns to improve system performance.