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mass properties giving incorrect/inconsistent results

Question asked by Ben Freudberg on Sep 2, 2015
Latest reply on Sep 10, 2015 by Chris Saller

Hello,

 

I'm having a strange issue with calculating the mass of a part I'm working on. "Mass Properties" tells me the mass is 89.6 g which I know is too high for this part. The CG is also not in a place that makes sense. However, if I split the part into two bodies with a dividing surface and then measure the mass of both parts, the total is a very reasonable 39.3 g and the CG is where I would expect it to be. Perhaps some of you could take a look at my part and see if you can figure out what's going on. The final feature in the model tree is a "Split", so just try measuring the mass with and without that feature suppressed. (Hopefully I have saved the part in a way that you'll be able to open since it references an outside assembly.)

 

Btw, I'm running SW2015 on Win10 with Win8 compatibility mode.

 

Thanks a lot,

Ben

 

Edit: Splitting the part with a different plane changes the calculated mass.

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