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Tham khảo tài liệu 'wiley solidworks 2009 bible part 3', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Creating Simple Parts Assemblies and Drawings 4 The Cap Ends option is available only when you specify a Thin Feature to be created from a closed loop sketch. This creates a hollow solid body in a single step. You can also use Thin Features with cuts and they are very useful for creating slots or grooves. Contour Selection SolidWorks works best when the sketches are neat and clean when nothing overlaps and when there are no extra entities on closed loops. However when you need to use a sketch that does not meet these criteria you can use an alternative method called Contour Selection. Contour Selection enables you to select enclosed areas to for features regardless of how many normal sketch rules the rest of the sketch violates. p. - It is my opinion that this feature was introduced into SolidWorks only to keep up - J-r-o-A with other CAD packages not because it is a great feature. I do not recommend using Contour Selection on production models. It is useful for creating quick models but the selection is too unstable for any data that you may want to rely on in the future. The main problem is that if the sketch changes the selected area may also change or SolidWorks may lose track of it entirely. Instant 3D Starting in Solidworks 2008 SolidWorks introduced lunctionality called Instant 3D. Instant 3D allows you to drag sketches to create extrusions and to drag model laces to change the size and location ol leatures. The lunction largely replaces and expands on the older lunctionality called Move Size Features. Figure 4.3 shows the arrows added by Instant 3D which are the handles that you pull on to create a solid Irom a sketch or edit an existing leature. Notice also that you can make cut leatures with Instant 3D. In lact you can change a boss leature into a cut. I m sure this is a neat sales demo trick but I m not aware ol any practical application ol changing a boss into a cut. One ol the attractive things about Instant 3D is that it allows you to make changes to
