In this thesis, the development of a model on Simulink of a rod-end will be discussed, which is modeled as a spherical joint. This thesis is a continuation of a previous thesis in which the rod-end had been simulated as a revolute joint and thus in 2D, while in this thesis, the decision was made to attempt to create a 3D model of the rod-end. Rod-ends are mechanical components that play a very important role in numerous mechanical applications, with one of the most important examples being the connection between the actuation system and the flight control surface of an aircraft.