| Volume discrepancy question [message #55366] Mon, 15 October 2012 03:54 UTC |
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I modeled a multi-part model in Unigraphics, which can calculate the volume of your model. When I compare my calculated volume to the volume shown on Shapeways when I upload it, they're not the same. What am I missing? The volume shown on the site is like 18cc MORE than my calculated number.
Here's the model: http://www.shapeways.com/model/737734/b0f0c61eb2857af67ad19c e4fafaa7e8
My calculated volume is: 198 cc
Shapeways volume shown online is: 216 cc
Why does it show more? I've got a lot of hollow volumes in it, but they've all got drain/access holes, so there's no captive holes. Any ideas?
Normally I wouldn't care too much about the volume, but this is a pretty big model and I was being very judicious with volume to keep cost down, but now it doesn't match my predictions, and it costs more than I expected.
Thanks!
~ Ben
[Updated on: Mon, 15 October 2012 04:26 UTC]
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| Re: Volume discrepancy question [message #55387 is a reply to message #55366 ] Mon, 15 October 2012 15:30 UTC |
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UPDATE!
I fixed the volume discrepancy problem - I had a hollow void that I forgot to add a drain hole for. So now the volume matches exactly, but I still get an error-email telling me that my model is too big; which I KNOW Is bogus because I modeled it to fit in the WSF bounding box.
Do our uploaded models have to be in a certain orientation for the auto-check program to work? Like, maybe it's too "wide", but if you rotate it 90° it would fit being "tall"?
ANYONE?!
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