This special session is dedicated to discussing the advancements and developments in 3D printing technology specifically for the design and fabrication of antennas and microwave components. 3D printing offers a promising approach to introduce greater flexibility and freedom in designing electromagnetic structures, enabling the creation of innovative antennas and components that were previously difficult or even impossible to achieve using conventional machining techniques. This session welcomes contributions related to both metallic and non-metallic 3D printing devices, as well as hybrid printing techniques.