To change the 3D view in AutoCAD, you can use the following methods:

1. Orbit: Use the orbit command to rotate the 3D view around the design. Simply type 'ORBIT' in the command line and press Enter. Then, click and drag the mouse to rotate the view as desired.

2. ViewCube: The ViewCube is a convenient tool located in the top-right corner of the screen. You can click and drag on the ViewCube to rotate the 3D view.

3. SteeringWheels: Another useful tool for changing the 3D view is the SteeringWheels. Access the SteeringWheels by typing 'SW' in the command line. Then, click and drag on the SteeringWheels to manipulate the view in different directions.

4. 3DORBIT: The 3DORBIT command provides a more controlled way to orbit the 3D view. Type '3DORBIT' in the command line and then click and drag to rotate the view or use the options in the command line for more specific control.

5. Dynamic View: You can also use the 'DVIEW' command to change the perspective of the 3D view. Type 'DVIEW' in the command line and then input the desired parameters to adjust the view accordingly.

By utilizing these methods, you can easily change the 3D view in AutoCAD to get a better understanding of your design and make necessary adjustments. Remember to practice and experiment with these tools to find the best approach for your specific design needs.