Place 3: Draw.io – create technical sketches online In my eyes, FreeCAD is comparatively easy to use. In addition, you can even perform full FEM simulations in both 2D and 3D! With the help of FreeCAD you can quite easily create technical drawings with all the usual features such as dimensions, fits, tolerances and surface specifications.įurthermore, with FreeCAD you can not only create 3D models and 2D drawings derived from them. The FreeCAD design software comes with modern user interface and is a versatile 3D and 2D drawing program.