Alex Telford gives us a walkthrough of FreeStyle in Blender 3D to get non-photorealistic line drawing renders from Blender 3D scenes. Check out the original posting for the How To Use Freestyle Line Drawing Rendering In Blender Tutorial at Alex’s site here.

Freestyle is a software for Non-Photorealistic Line Drawing rendering from 3D scenes. It is designed as a programmable interface to allow maximum control over the style of the final drawing: the user “programs” how the silhouettes and other feature lines from the 3D model should be turned into stylized strokes using a set of programmable operators dedicated to style description.”