How is density calculated?

Discussion in 'Customer Service' started by jwholper94, Mar 24, 2012.

  1. jwholper94
    jwholper94 New 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?

  2. stonysmith
    stonysmith Well-Known 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:
    View attachment 15519

    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%
    Last edited: Mar 24, 2012