Cutting plan and sections in SketchUp

Section planes allow you to create "cut-away" renders of scenes without having to change the (potentially complex) underlying geometry, using oriented planes to slice away obstructing sections from view.

This is related to cut-away diagrams classically used in technical illustration.

In this SketchUp webinar record you can learn how to create 2D drawing from 3D model, to manage your section planes in a quick way and to export an image of your model displaying section cut effects.