Building Models with CAD Subsystems

CAD subsystems are generated with components from the Multibody library. Therefore, you can create a multibody model by connecting your CAD subsystems with multibody components. For example, the following figure is a model of a pick and place mechanism that was built using CAD subsystems and components from the Multibody library (a Fixed Frame and Revolute and Prismatic joints). To build this model yourself, see the Tutorial: Building a Pick and Place Model with the CAD Toolbox.

The CAD subsystems in the preceding figure have multibody ports attached to them and are necessary for connecting CAD subsystems to other components. Ports are not automatically added to CAD subsystems, and you must add them by doing either of the following:

To find out more about Coords, ports, and the relationship between them, see Coords and Ports.

Note: When building a model with more than one instance of the same CAD subsystem, you should drag out each instance from the Hierarchy. It is not recommended that you copy and paste multiple instances of a CAD subsystem because this will not give you a proper representation of your model in the 3-D Workspace.