SketchUp integration with Google Earth makes it very easy to import terrain data. We learned how to make the terrain 3D printable by adding a skirt and scaling to size. We learned about an extension that allows us to quickly create a hollow model, reducing the model volume by 85 percent. We discussed the difference between solid colors and textures in SketchUp, and how that affects packaging the model for the printer.

In the next chapter, we'll learn about preparing architectural models for printing.