I want to create a conveyor (see p.j) and manage the total length (extrusion) via a variable that would be possible for me to modify without modifying the base part.
Or more simply, when I import this part into an assembly I will be asked for the length.
I don't think you have to go through a family of pieces because the length would be different each time.
You have to make your part in a mechanically welded profile, even if it means linking the length of the part to the assembly (be careful even with the management of the links afterwards).
Hello, if you want the part to ask you about its length when inserting it into the 3d then you have to use the puplisher configuration. I'm in sw 2015 sp5 I attach an example otherwise look here https://www.youtube.com/watch?v=iFkEOIUsaTk