Fixtures are parts or assemblies that help orient and hold the workpiece during a manufacturing operation. Fixtures can be created and saved in Part or Assembly mode, and retrieved into the Manufacturing mode during fixture setup.

To use fixtures in the manufacturing process, you must first define the fixture setups for the manufacturing model. Each fixture setup has a name and contains information about the fixtures that are to be present in the model when the setup is active. Only one setup can be active at a time. Setup names can be used to manipulate fixtures within the manufacturing model. Because fixture setups contain fixture assembly information, each manufacturing model has to have its fixture setup(s) explicitly defined; unlike sites or tools, you cannot retrieve a fixture setup from one model into another manufacturing model. Fixture setups can be defined at the time of setting up an operation or at any time between NC sequences.