If you've been using SketchUp to create 3D models, you may be wondering how to save and share your work so others can view it in 3D. Luckily, SketchUp makes it easy to save your models in a way that allows others to view them in 3D. Here's how to do it:

1. Open your SketchUp model and make sure it's completed and ready to be saved.

2. Go to the 'File' menu and select 'Export' from the dropdown menu.

3. Choose the file format you'd like to save your model in. SketchUp offers several different file formats for exporting, but one of the most common ones for 3D viewing is the .obj format.

4. Once you've selected the format, choose a location on your computer where you'd like to save the file and give it a name. Click 'Export' to save the file.

Now that you've saved your model, you may want to share it with others so they can view it in 3D. One way to do this is by uploading the file to a 3D modeling platform or website that supports the file format you saved it in. Many online 3D modeling platforms allow you to upload your models for others to view and even interact with in 3D.

Another option is to use SketchUp's own 3D Warehouse, where you can upload your models and share them with a community of other SketchUp users. This is a great way to showcase your work and get feedback from others.

If you want to embed your 3D model on a website or share it on social media, you can also use SketchUp's online viewer. This allows you to upload your model and generate an embed code that you can use to display your 3D model on a website or share it on social media for others to view in 3D.

By following these steps, you can easily save your SketchUp models to view in 3D and share them with others. Whether you're a professional 3D modeler or just someone who enjoys creating in SketchUp, being able to share your work in 3D adds a whole new dimension to your projects.