If you're a PCB designer using Eagle, you'll be delighted to know that you can easily view your designs in 3D. Here's how to do it:

1. Open your project in Eagle and make sure you have the 3D models for your components. If not, you can download them from the Eagle library or import them from other sources.

2. Once your project is open, go to the 'View' menu and select '3D Layout'. This will bring up the 3D view of your PCB design.

3. You can now rotate, zoom, and pan around your design to examine it from different angles. This can be incredibly helpful for visualizing the physical layout of your PCB and identifying any potential issues.

4. If you want to inspect specific components in 3D, simply click on the component in the 2D view and then switch to the 3D view. You'll see the selected component highlighted in 3D, allowing you to closely examine its placement and orientation.

5. To customize the 3D view, you can adjust the display options such as component colors, transparency, and more. This can help you create a more realistic representation of your PCB design.

6. Don't forget to use the 'Update' button in the 3D view to refresh the display if you make any changes to the design in the 2D view.

By following these simple steps, you can easily access and utilize the 3D view feature in Eagle for your PCB design projects. This can be a game-changer for visualizing your designs and catching any potential issues before moving forward with fabrication. Give it a try and take your PCB design to the next level!