Writing different sizes and fonts requires the strength of different parts.
There are three postures in writing calligraphy. Let me give you a detailed introduction:
First: pillow wrist. When writing small print, because the pen tip is used to write, and regular script is strict, tired pens are not allowed, so for safety reasons, you need to put your left hand flat on the table (the back of your hand is up), hold the pen in your right hand, and put your wrist on the back of your left hand to write.
Second: hanging the wrist. When writing in block letters, official scripts or even running scripts, the right elbow is placed on the table, the right hand holds the pen on the elbow, and the wrist hangs in the air to write.
Third: hang your elbow. Refers to the whole right arm hanging in the air to write. Generally, this posture is used when writing in large fonts (all kinds of characters are not limited), or when you are crazy.
I explain so much to you, because I want to tell you that your posture of writing calligraphy is different, and the focus of your efforts is different. Sometimes it is just the cooperation of wrist or elbow, and sometimes it is the internal force of wrist, elbow, arm and even the whole body. Writing calligraphy depends on the specific stroke process, not just a wrist force. I'm here to attract jade, and a higher level needs your appreciation and practical experience. If you think my answer is helpful to you, please accept it. Thank you.