Yeah not my domain so wouldn't really know. For FEniCS I know Gmsh[1] was used. There's some work[2][3] been done to integrate FEniCS with FreeCAD. It seems Fre

Yeah not my domain so wouldn't really know. For FEniCS I know Gmsh[1] was used. There's some work[2][3] been done to integrate FEniCS with FreeCAD. It seems FreeCAD also supports[4] other FEM solvers. But, I guess you get what you pay for in this space still. [1]: https://gmsh.info/ https://gmsh.info/ [2]: https://github.com/qingfengxia/Cfd https://github.com/qingfengxia/Cfd [3]: https://github.com/qingfengxia/FenicsSolver https://github.com/qingfengxia/FenicsSolver [3]: https://wiki.freecad.org/FEM_Solver https://wiki.freecad.org/FEM_Solver