Score with a pen
The nib of a brush is mainly composed of a nib and a pair of bristles. The so-called nib refers to a cluster of long and pointed parts in the center of the nib (also known as the pen center), and the so-called auxiliary hairs refer to some short hairs wrapped around the nib. In the process of writing, pen front and assistant play different roles unscathed.
Brush stroke is the most elastic place in brush stroke, which determines the direction and strength of brush stroke, so there is a saying that brush stroke dominates bones and muscles. However, the brushwork with bones and muscles but no flesh and blood is not beautiful, so calligraphers of all ages used not only the nib (and the nib and the sub-nib could not be completely separated) but also the sub-nib when writing.
The auxiliary brush controls the thickness of strokes. The more the auxiliary brush touches the paper, the fuller the strokes will be, so it is also called "the auxiliary brush is flesh and blood". In the process of calligraphy, calligraphers always coordinate the use of pen tips and auxiliary pens according to their own aesthetics. People who attach importance to bones and muscles and take thinness as beauty use less hair; And those who emphasize both bones and muscles and flesh and blood, and take fullness as beauty, must use it more.
The tip of a brush can be roughly divided into three parts according to its position (see figure): the tip (leading edge), the abdomen (middle part) and the root (joint with the pen holder). Divide the part from the pen tip to the pen belly into three equal parts, the part close to one third of the pen tip is called a minute pen, the part from the pen belly to the pen tip is called a minute pen, and the part close to two thirds of the pen tip is called a minute pen (see the pen bitmap).