how long can a nib be used?and how to replace a worn nib?one nib can be used for at least one hundred thousand painting strokes. there are two main factors that cause pen wear:1. the higher the pressure sensitivity coefficient of the pen in the drive is set, the greater the intensity of the pen, which will cause the pen nib to wear out too quickly.2 the accumulation of dust on the surface of the pen tablet or pen display causes the pen nib to wear out too quickly. when the nib is worn to the following extent, it needs to be replaced.replacement to pen nib:1 unscrew the pen holder and take out the new pen nie and pen ring from the pen holder.2 use the pen ring to clamp out the worn pen nib.3 insert the new nib into the pennote: after replacing the new nib, you need to gently press it with your fingers to avoid uneven lines during the drawing process.in order to maintain the feel of holding the pen, it is usually necessary to change the refill when half of the slope of ...