1, find your favorite calligraphy picture, and click to enlarge.
2. Right-click to save the picture on your computer.
3. Then you can save the USB flash drive to print outside or print it yourself (if your computer has complete printing equipment).
Maybe the effect is not as good as handwriting, because it is copied after all.
This is my own method. I usually print scores like this. I don't know if it is useful for your calligraphy tube.