Altium Designer is a powerful tool for PCB design, and one of its useful features is the ability to view your design in 3D. Rotating the 3D view allows you to get a better understanding of the spatial layout of your components and to identify potential design issues. Here's how you can easily rotate the 3D view in Altium:

1. Open your PCB design in Altium Designer and go to the 'View' tab in the top menu.

2. Click on 'Workspace Panels' and select 'PCB 3D'.

3. You will see your design in the 3D view. To rotate the view, simply left-click and hold the mouse button while moving the cursor. This will allow you to rotate the view in any direction.

4. You can also use the keyboard shortcuts to rotate the view. Press and hold the Shift key while clicking and dragging the mouse to rotate the view horizontally, and press and hold the Ctrl key while clicking and dragging the mouse to rotate the view vertically.

5. Once you have rotated the 3D view to your desired angle, you can use the mouse scroll wheel to zoom in or out to further examine the details of your design.

By following these simple steps, you can easily rotate the 3D view of your PCB design in Altium Designer. This feature is especially useful for checking the spatial relationships between components, inspecting the layout of complex designs, and ensuring that there are no clearance or interference issues in your design.

In addition to rotating the 3D view, Altium Designer offers many other powerful features for PCB design, including interactive 3D editing, realistic 3D rendering, and 3D measurements. These capabilities allow you to visualize your design in a realistic and intuitive way, making it easier to identify and resolve potential design issues.

Next time you are working on a PCB design in Altium Designer, be sure to take advantage of the 3D view and use the simple rotation techniques to gain deeper insights into your design. This will not only enhance your design process but also help you create more reliable and efficient PCB layouts.