SketchUp Free is a popular 3D modeling software that allows users to create and manipulate 3D objects with ease. One common task in 3D modeling is rotating objects to achieve the desired orientation. Here's a step-by-step guide on how to rotate an object in Sketchup Free:

1. Open your Sketchup Free project and select the object you want to rotate.

2. Click on the 'Rotate' tool in the toolbar or use the shortcut key (Q) to activate the rotation function.

3. Click on the point where you want the object to rotate from. This will be the pivot point for the rotation.

4. Move your mouse to start the rotation. You can see a preview of the rotation as you move your mouse.

5. Click again to set the object in its new position.

It's important to note that you can use precise angles for the rotation by typing in the angle value after selecting the rotation axis. This allows for accurate and controlled rotations of objects.

Additionally, Sketchup Free allows you to define specific rotation axes by selecting reference points on the object. This is useful for more complex rotations where you need to align the object with specific edges or faces.

After you have completed the rotation, you can further refine the object's position by using the 'Move' tool or other editing functions in Sketchup Free.

In conclusion, rotating objects in Sketchup Free is a simple and intuitive process that can be done with the Rotate tool. By understanding how to use the rotation tool and its features, you can easily manipulate objects to achieve the desired 3D models. Whether you're a beginner or an experienced 3D modeler, mastering the rotation function in Sketchup Free is essential for creating accurate and detailed 3D designs.