Use the Cam-Follower () node to force a point of one moving body to maintain contact with a curve or surface of another moving body. This connection node is generic in nature and allows any point to follow a curve or surface, including a typical radial or cylindrical cam-follower connection used in various mechanisms.

Select a set of boundaries which is being followed by a point called 'follower'. This option is available only when Selection type is set to Boundary in the Cam section. The boundary selection can be specified for 3D and 2D models.

Select a set of edges which is being followed by a point called “follower”. This option is available only when Selection type is set to Edge in the Cam section. The edge selection can be specified only for 3D models.

Select a set of domains such that the centroid of the selected entities follows the cam boundaries or edges with a certain optional offset. This option is available only when Connection point is set to Centroid of selected entities and Entity level is set to Domain in the Follower section.

Select a set of boundaries such that the centroid of the selected entities follows the cam boundaries or edges with a certain optional offset. This option is available only when Connection point is set to Centroid of selected entities and Entity level is set to Boundary in the Follower section.

Select a set of edges such that the centroid of the selected entities follows the cam boundaries or edges with a certain optional offset. This option is available only when Connection point is set to Centroid of selected entities and Entity level is set to Edge in the Follower section. The edge selection can be specified only for 3D models.

Select a set of points such that the centroid of the selected entities follows the cam boundaries or edges with a certain optional offset. This option is available only when Connection point is set to Centroid of selected entities and Entity level is set to Point in the Follower section.

Select a single point, such that the selected point follows the cam boundaries or edges with a certain optional offset. This option is available when Connection point is set to Geometric Point in the Follower section.

Select the Selection type — Boundary or Edge.

A follower is defined through a point which follows the cam boundaries or edges with a certain optional offset. The follower point can be a part of rigid or elastic bodies. If there is a need for multiple points to follow the cam boundaries or edges, multiple instances the Cam-Follower feature should be used.

Select the Connection point — Centroid of selected entities or Geometric point.

When Centroid of selected entities is selected as a Connection point, specify the Entity level as Domain, Boundary, Edge, or Point.

Select the Connection force — Do not compute, Computed using weak constraints, or Computed using penalty method in order to disable or enable the computation of the cam-follower connection force.

In case Computed using penalty method is selected, specify a value of Penalty factor (pc) used for the connection constraint.

Select Connection state — Always active, or Conditionally active.

When Conditionally active is selected, specify a value of the Connection tolerance (Δ) used in the connection constraint. This option can be used to deactivate the connection between the two bodies based on their spatial positions and the value of the connection tolerance.

Physics tab with Multibody Dynamics selected:
Global>Multibody Dynamics>Cam-Follower