From FreeCAD Documentation
- Select a single mesh object.
- There are several ways to invoke the command:
- The Mesh segmentation task panel opens.
- Optionally check the Smooth mesh option and specify a value for the smoothness of the mesh. The higher the value the smoother the mesh is assumed to be. Specifying
0
has the same effect as unchecking this option. Do not select this option if you want to create planar segments.
- Select the surface type you wish to create mesh segments for. You can select more than one type, but this can lead to poorer results. The available surface types are:
- Plane
- Cylinder
- Sphere
- Freeform
- Specify the required settings. Make sure the Tolerance values are not too low, and the Minimum number of faces values not too high.
- Press the OK button.
- The command will create a group containing separate mesh objects, each a segment of the original mesh object.
- If the created group is empty try using the command again with modified settings.