Ok, so I figured it out. If you open up the assembly navigator and right click your part, you can go the weight tab and poke the update button to refresh your weight properties. This is only available with the advanced assembly bundle.
Hello,
I am trying to weigh parts via Assembly Weight Management in NX 3. I have set associativity to my material via Material Properties. Regardless the material, I keep getting the same results when weighing the part. Am I missing something?