Blower Housing Faculty Web Pages（鼓风机房教师网页）.pdfVIP

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Blower Housing Faculty Web Pages（鼓风机房教师网页）.pdf

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Blower Housing Faculty Web Pages（鼓风机房教师网页）

SolidWorks 2009 Trainin g Manua l Exercise 11: Create this by following the steps as Blower Housing shown. This lab reinforces the following skills : • Helix and Spiral on page 76. • Sweep with guide curves, on page 91 . • Sweeping Along Model Edges on page 133. Getting Started With some models, where you should start is not obvious. You may find it very tempting to start building your sweep by drawing the sweep profile first. It is best practice, however, to create the path and guide curves first so that the profile appears at the right point in history to apply P i e r c e relations to make the sweep work . This can present some difficulties because it is often helpful to use the profile to help build the path and guide curves. I f you find that you must build the profile first and use it to construct the path and guide curves, you can copy the original profile to a new sketch which is driven by the path and guide curves. In this part, the overall shape is a flat spiral, but the cross section o f the involute shape changes in two directions as the sweep progresses. Making the profile grow taller around the sweep wil l mean that we use a spir