Translations:Manual:Creating FEM analyses/6/en
The simulation itself is done by another piece of software, that is used by FreeCAD to obtain the results. As there are several interesting open source FEM simulation applications available, the FEM Workbench allows you to choose between them. However, currently only CalculiX is fully implemented. Another piece of software, called NetGen, which is responsible for generating the subdivision mesh, is also required. Detailed instructions to install these two components are provided in the FreeCAD documentation.