I am fairly new to SW and I have a question. I am saving an assembly as a part, using the combine feature to make it a single part, and then using this in a new assembly. The problem is that every time I have to change something in the original assembly, I am saving over the part file which breaks all the mates in the final assembly. Is there a better way to do this so that the part file stays linked to the original assembly and overwriting of the part file is unnecessary? Thanks.