Home » Support » Buying » How is density calculated?
Search Search  
Show: Today's Messages    Show Polls    Message Navigator
How is density calculated? [message #45897] Sat, 24 March 2012 04:16 UTC Go to next message
avatar jwholper94  is currently offline jwholper94
Messages: 3
Registered: February 2012
Go to my shop
Junior Member
This may be the wrong board to ask this in, but this seemed like the best fit.

For WSF, there is a discount after 20cc and a density over 10%. I am wondering how shapeways calculates density?

Also, am I interpreting this correctly in that the in order for the discount to be applied, you have to have both the volume and density, not one or the other?

Thanks!
Re: How is density calculated? [message #45900 is a reply to message #45897 ] Sat, 24 March 2012 06:05 UTC Go to previous message
avatar stonysmith  is currently offline stonysmith
Messages: 1691
Registered: August 2008
Go to my shop
Senior Member
moderator
I can't be 100% sure of the actual method Shapeways uses, but Density (should be) equal to Material Volume divided by BoundingBox Volume

Consider this shape:
index.php?t=getfile&id=15519&private=0

Lets say that it's measurements are 5cm*5cm*1cm

Then, the Material used is 4+4+1 = 9cm3, and the Bounding Box is 5x5x1 = 25cm3

That means this shape has a density of 9/25 = 36%

[Updated on: Sat, 24 March 2012 06:06 UTC]


Patience, Persistance, Politeness - the 3Ps will help us get us to Perfect Printed Products

 
   
Previous Topic:Import duty
Next Topic:Shipping time and Order