STEP 3 - BISECT RADIUS: Set the compass width to the radius of the circle. Put the spike on the left of the circle and draw an arc that crosses the circle twice.

So, it's a little unskillful, but I tried drawing a circle using a round cylindrical object. The score was 98.6%, and it was rated as 'Legendary circle'.

Designed to be an intuitive tool the Rotio Compass offers an easy way to create curves and circles. Watch the demonstration video below to learn more about the Rotio Compass which has been ...