Spin Use the Middle Mouse button to Spin the model. The Spin Center can be enabled and disabled, changing the center of rotation.

Task 1-3. Open the ENGINE.ASM and Spin using the mouse.

1. With ENGINE.ASM visible in the preview window, click Open in Pro/E from the browser.

ENGINE.ASM

2. Middle-drag in the graphics window to spin the model.
   1. Spin the model in several directions.
   2. Notice that the model is spinning around the `spin center' in the center of the model.
3. Click Saved View List from the main toolbar and select Standard Orientation.
4. Click Spin Center from the main toolbar to disable it.
5. Place the mouse cursor on the top of the model, and middle-drag to spin.
   1. Place the mouse cursor on the bottom of the model, and middle-drag to spin.
   2. Notice the mouse cursor position is now the center of rotation.