Most Americans probably last held a drawing compass in elementary school. It also usually has two legs, one with a sharp point for holding the instrument in place and one with a pen or pencil point ...

Whether you draw them by hand or try to achieve that perfect circle with a tool, they are not always ... sort of like a compass. A pencil, a jigsaw, a router can all work well to make a circle ...

Put the compass spike at the bottom of the circle and draw an arc that touches the top of the circle and extends more than half way down each side... Image caption, ...then keeping the compass ...