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Tutorial: How to create a (soccer) football like the never-before-seen Brazuca!

By bj on 09 Jan 19:05 8 answers 12857 views 4 comments

Created in PTC Creo 2.0. You should have some experience with surface modelling for this one.

8 answers

  • W. Holzwarth
    W. Holzwarth over 3 years ago

    Well done, bj. See my comments and Inventor 2014 version together with your Grabcad files.
    Walter

  • John D Ebner
    John D Ebner about 3 years ago

    not a bad tutorial how ever
    its not accurate in terms of seams overlap and correct pattern seam compression

    a draft of TWO seams that is also requirement and fundamental to actually manufacturing the parts in a compression laminating sphere

    what we want to see is a sweep of the two sided draft angles as the ascending draft is not equal to the descending draft along the larger surfaces - this is not clear until you analyze the draft angles as the sweep revolves alone the curves. having modeled 12 different soccer balls since 1972 the clear challenges is not only in laminating a tiled cut in the form of an X but to make the revolved draft angle adjust in according to the ascending material at the manufacturer's Dye.

    note in the images below of modeled versus manufactured actual product that the seams are indeed NON uniform over the surface

  • John D Ebner
    John D Ebner about 3 years ago

    note in this image that the actual draft angle is slightly greater in the ascending than in the descending for the SEAM's original intent of design

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