FEM ConstraintPlaneRotation

    From FreeCAD Documentation

    FEM ConstraintPlaneRotation.svg FEM ConstraintPlaneRotation

    Menu location
    Model → Geometrical analysis features → Plane multi-point constraint
    Default shortcut
    Introduced in version
    See also
    FEM Constraint transform


    Creates a FEM constraint for keeping the nodes in a planar surface in the same plane.


    1. There are several ways to invoke the command:
      • Press the FEM ConstraintPlaneRotation.svg FEM ConstraintPlaneRotation button.
      • Select the Model → Geometrical analysis features → FEM ConstraintPlaneRotation.svg Plane multi-point constraint option from the menu.
    2. In the 3D view select the object the constraint should be applied to, which can be a face.


    1. Plane rotation constraint can only be applied to a single planar face.
    2. When a plane rotation constraint is applied to the same face as a displacement/fixed constraint, the displacement/fixed constraint takes preference.


    1. The constraint uses the *MPC card in CalculiX. The card is explained in detail at http://web.mit.edu/calculix_v2.7/CalculiX/ccx_2.7/doc/ccx/node220.html