SolidWorks Part Reviewer: Football Helmet

Football Helmet: While it would be easier to to use the side profile and bottom profile as direction 1 curves, and the middle profile for direction 2, the result would be a 3-sided surface with bad flow of the UV curves (all of the control points of the NURBS surface converge at the same point and create a singularity. This would prevent the surface from being shelled or offset, a critical step in building a helmet.

Instead, a sketch consisting of a partial ellipse is used to provide a 4th side for the surface. As a general rule, all lofts and boundary surfaces should be 4 sided. Use the fill surface for everything else.

Download:Individual Parts
Complexity: Moderate
Features used: Tangency, Flatten, Pattern

View all the Part Reviewer Tutorials here.

DraftSight Download: In conjunction with DraftSight, Dassault Systèmes’ 2D CAD product, the 2D drawing(.dwg) file of the Self Centering Ring tutorial is now available for download here.

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Dassault Systèmes SolidWorks Corp. offers complete 3D software tools that let you create, simulate, publish, and manage your data. SolidWorks products are easy to learn and use, and work together to help you design products better, faster, and more cost-effectively. The SolidWorks focus on ease-of-use allows more engineers, designers and other technology professionals than ever before to take advantage of 3D in bringing their designs to life.