I'm working on a fairly large assembly. It has some parts and some subassemblies within it. I have assigned mass properties to each part and subassembly so that I can have a weight for the overall assembly. The only problem is that when I'm in the overall assembly and click Tools-> Mass Properties it only shows the cumulative weight for the parts, it does not include the subassemblies. Anybody know how to fix this?
Make sure you don't have anything selected when you ask for mass properties. That is the only time that I have seen where mass properties are not correct in adding all geometry. If you select one or two parts and then ask for mass properties, it evaluates only those parts selected. So just as a test you might select one of the sub-assemblies in the assy and see what it gives you for mass properties. That might provide a clue.
WT