TAILIEUCHUNG - SolidWorks 2010- P10

SolidWorks 2010- P10: Whether you are a new user of SolidWorks or a professional who wants to improve your skills, this book was written for you. Learning any software can be difficult at times. You launch the software for the first time, and you feel overwhelmed, not knowing how to even start a new document. In 3D CAD programs, it can be especially difficult. Many times a whole new vocabulary and a whole new creative environment are introduced. | Model a Washer 2 3 9 faces that are perpendicular to the neutral plane and without an added draft they will cause issues for the molding process. FIGURE Selecting which surfaces to draft 9. Click the green check mark to create the drafted surfaces. Check the Draft of a Part Now that you have added draft to the washer you need to ensure that it is indeed drafted properly to meet the manufacturing requirements. You can check the draft and how it is applied to your part by using the Draft Analysis tool. This tool not only verifies the draft but can show the angle changes on a face as well as determine the optimal areas for the parting lines injection and ejection surfaces in parts. The Draft Analysis tool uses colors to show whether faces on the part have a positive draft have a negative draft or have the needed draft based on the draft angle specified and the neutral plane selected. Faces that have a positive draft meet the minimum angle required for the mold to be pulled in the direction specified these faces are shown green by default. Faces shown in red are designated as having negative draft and are faces that cannot be extracted with the mold being pulled in the designated direction. Often the faces shown as having negative draft are ones that will sit on the other half of the mold unless the surface or features is an undercut. Flipping the direction of pull will often swap the colors. Faces that are shown in yellow require more draft applied to them or the draft angle in the Draft Analysis PropertyManager needs to be decreased. The great thing about the Draft Analysis tool is that it allows you to continue making modifications to your part while the tool is active. This gives you real-time 240 Chapter 6 Creating a Subassembly feedback while you modify the model. The colors designating positive negative and needed draft will remain on the part until the tool is deselected. The following steps will set your requirements for the draft of the washer and you .

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