SolidWorks Tutorial - Rendering Models to look like Drawings/Sketches
Check out this video on how to render your models to look like drawings or sketches!
I've found the Penguin Renderer for Rhino to be a good option for non-realistic renderings. There are some good examples in the showcase of pencil sketches where the engine puts in extra marks to better simulate hand sketches. I guess you could further process the SolidWorks rendering to come up with a similar result?