SIMPACK is a general purpose Multi-Body Simulation (MBS) software used for the dynamic analysis of any mechanical or mechatronic system. It enables engineers to generate and solve virtual 3D models in order to predict and visualize motion, coupling forces and stresses. SIMPACK Pre enables users to build models from the ground up. Using the large variety of included modeling elements (e.g. bodies, joints, forces and excitations), basic models can be generated for investigating general dynamic phenomena. The pre-processor is required for most other SIMPACK modules.