In SketchUp, you can import and export STL files, which are used in 3D printing. As explained in 3D Printing a Model, for a SketchUp model to become a successful 3D printout, the model needs to meet certain criteria, such as having a base and a volume and being a solid.

Whatever your experience level or modeling style, the way you model impacts SketchUp’s performance. Using the recommended system requirements helps, but there are a few other things you can do to optimize your SketchUp experience. 

The template you choose when you first create a new model determines a lot of your model’s settings. SketchUp includes a few templates that represent the most common applications including architecture, construction, urban planning, and landscaping among others. You can select from one of these default templates from the Home section of the Welcome Window. 

Naming something is the first step toward figuring out what makes that thing different from all the other things in the world. In a SketchUp 3D model, this idea isn't just a philosophical concept. When you use the Classifier to embed data into groups or or components, those groups or components become objects that can be managed. 

Can you imagine Johannes Gutenberg, inventor of the printing press, learning how to create 3D models in SketchUp? Hopefully, he’d like the way SketchUp advances his groundbreaking invention - especially the text that moves and (in some cases) updates as you work on your model.In SketchUp, you can add four types of text, each depicted in the following figure: