Little confusion of measurements

Discussion in 'Software and Applications' started by Neurodeliri, Feb 22, 2013.

  1. Neurodeliri
    Neurodeliri New Member
    Hi, someone made a pretty small 3D pentagon shape for me, and while its pretty much perfect, the measurements are making sense to me.

    Each side on the pentagon has to be 1 3/4ths of an inch but when the shape is uploaded, the measurements are coming up much closer to 2 inches.

    I can't get a hold of the guy right now and I was just wondering if anyone knew what the problem could be. I was told it was made using inches as the units but have tried all the other units available on the site and still no luck.

    There's a link to the file itself if that helps.

    Thanks for any help guys.
    JACANT Well-Known Member
    It is most probably the bounding box size which is what Shapeways is showing.
    Download your model. Get a copy of it's free.
    Just click on the icon that looks like a ruler. You can measure your model here.
    If it is the wrong size just scale it in the axis you want.
    Last edited: Feb 22, 2013
  3. Neurodeliri
    Neurodeliri New Member
    The measurements according to that program are all under 1/10 of an inch.

    I'm pretty inexperienced with these programs, how do i rescale it?
    JACANT Well-Known Member
    Do a bit of math in Calculator
    Divide 1.75 by 1.1 = 1.590909090909091 Copy this. (Or whatever the size is now)
    In Netfabb.
    Goto Part - Scale.
    In Scale parts, untick equally
    In 'X' and 'Y' paste answer
    Hit Scale
    Measure Part to check
    You will now have to export this.
    Goto - Part - Export part - as STL
    Upload this new file.

    That is assuming the model is flat with 'Z' up
    Last edited: Feb 22, 2013
  5. Neurodeliri
    Neurodeliri New Member
    The models sides are still coming up around .07 inches with those numbers input.
    JACANT Well-Known Member
    Divide 1.75 the size you want by the exact side measurement it is now. 'Around' is not good enough to get the exact size you want.
    Use the line - line measurement and pick the vertical edges.
    If the model is not laying flat just rotate it to suit. So the flat face is up 'Z'
    If you want you could send me the file by PM or my email address.

    line -line.png
    Last edited: Feb 22, 2013
    JACANT Well-Known Member
    File sent by PM
    44.45mm = 1.75"
  8. Neurodeliri
    Neurodeliri New Member
    Thanks a ton for all your help!