How to make the graphic results of the chain drive remain constant and not decrease? In this case, the chain is connected to a 3D design.

[Yifeng Tang]

Please consider decribe your issues and intentions in more details. It's impossible to diagnose from a picture.

https://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fast-answer