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Volume discrepancy question [message #55366] Mon, 15 October 2012 03:54 UTC Go to previous message
avatar Mid7night  is currently offline Mid7night
Messages: 16
Registered: July 2010
Go to my shop
Junior Member
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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