How to draw ovals.

I've racked up almost 350 subscribers, and haven't added new content for months. I feel guilty. But not anymore! This week, I tackle a tricky problem for someone like me who is drawing lots of motorcycles. How do you draw a circular thing in space... as an elliptical? How do you keep the lines nice and smooth?

Some tips I share with you:

1. The easy clear cut mathematical formula for drawing an elliptical.
2. How to tack down your string.
3. Choosing the right kind of pen.
4. The importance of practicing with a pencil first.

Basically, all you need to know is your simple equation for finding the 'foci' in your ellipse: c2 = a2 - b2.