Ruler 20 Inch Marco

Choose any external gear, In the two inner circles You can draw different graphics Right hand holding a ball-point pen insert pen perpendicular to the paper, in a certain direction, to draw a beautiful curve pattern. Note that the internal and external tooth should always rely on tight. Need to change into another or more than two gears, the gear was successively on the original painting, constitute a more complex pattern. Use combination illustration can draw ten million different decorative pattern curve pattern. If use different color painting pen cap, the decorative pattern looks more beautiful.