@rustamuradov034 please refrain from making duplicate posts - I took the liberty of closing the old topic out for you and future visitors who might find the old one and not get a solution exposed here as a result: Dynamo export - #3 by jacob.small
ModelCurve.ByCurve May do what you are after, and if not then sharing your DYN (if you can’t post here than try a web hosting service like Dropbox, OneDrive, Box, GoogleDrive, etc.) here will help us to help you.