What about cutting a piece of plastic into a circle?
With a suitable radius of the bamboo bar, while nailing a nail or a needle, a head in the center of the circle, and then draw a circle like push, understand the other root, pay attention to push down when the point is good, turn a few laps better
With a suitable radius of the bamboo bar, while nailing a nail or a needle, a head in the center of the circle, and then draw a circle like push, understand the other root, pay attention to push down when the point is good, turn a few laps better
With a suitable radius of the bamboo bar, while nailing a nail or a needle, a head in the center of the circle, and then draw a circle like push, understand the other root, pay attention to push down when the point is good, turn a few laps better
