The pivotal role of manufacturing, assembly, testing, and logistics costs in Rigid-Flex PCB projects underscores the importance of design and cost control, with a crucial need for integration of mechanical expertise to overcome challenges in time, cost, and error-prone processes. Traditional PCB design tools often fall short in addressing the complexities of folding and assembly inherent in Rigid-Flex designs, necessitating a shift to 3D thinking and modern tools with advanced capabilities to optimize design, collaboration, and production efficiency.