This work presents the design, manufacturing, and implementation of three uniaxial rotational molding (URM) systems, each corresponding to a mold of the trachea, lung, and tumor lesions, for the production of a soft anthropomorphic phantom. The phantom structures were manufactured using Ecoflex® 00-20 silicone. Each mold was designed in Autodesk Inventor and fabricated via 3D printing, enabling customized and reproducible geometries. A proportional-derivative (PD) controller was implemented in each URM system to regulate rotation speed according to a reference trajectory. Additionally, curing times and silicone volumes were tested to ensure uniform material distribution. The resulting phantom elements demonstrate the potential of controlled rotational molding for producing soft, anatomically realistic models suitable for radiopharmaceutical characterization, medical research, and quality assurance in nuclear imaging systems.
