I am working on a gas-line assembly. It is an assembly of many pipes and fittings of different dimensions. I need a way to find the inner volume and also the inner volume value should automatically update if a pipe length is changed. Please suggest any methods* that you are aware of.
Software version : Creo 2.0
I have attached a small part of the assembly. Please do notice the change in diameter between the pipe and fitting.
*I do not have access to 'Flexible modelling' features.