FEM Mesh/en

Create a FEM Mesh
There are different possibilities to create a FEM Mesh in FreeCAD:
 * The Gui tool Fem MeshFromShape
 * The Gui tool by Python
 * Python directly means make the FEM Mesh by Hand
 * Import a FEM Mesh

Objects created in PartDesign and Part are supported, as well as simple copies of those bodies. There are two meshers available to the user: Netgen and GMSH. Netgen is included in FreeCAD. Refer to FEM Install For FEM Mesh generation by GMSH user psicofil has provided a GMSHMesh Macro.

FEM Mesh Elements in FreeCAD
FreeCAD supports various element types. There is an external blog link which explains about the differences and when to use which element type: https://www.comsol.com/blogs/meshing-your-geometry-various-element-types/

("-" means not supported by the interface, thus it is not possible to support it. )

General
More informations about the FEM element types and their data structure inside FreeCAD can be find on FEM Element Types.

Creating a mesh with one Tet-10 Elements
If you want to have predefined element and node numbering:

Visual handling
Highlight some nodes on the view:

Postprocessing colors and displacement: Highlight some nodes on the view:

Script one Element of each supported Element Type
Fem Workbench