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For any CAD/CAM system, there are lots of procedures that can be used to meet with the manufacturing requirements. Z-amount is a popular ZW3D machining operation which is generally used to machine steep surfaces or steep areas of an area. General machining practice dictates that to be able to get great surface finish, it’s crucial that you select the right tool course operation. Occasionally it may be essential, contain or to restrict the tool path to a special region of the part. This post describes the best way to restrain and contain tool course for Z-level machining in ZW3D. Here are a few of the available alternatives: 1. Z guidance: You can choose the Top and Bottom choice to define the machining height or the machining region between two points generally in the Z-axis (Figure 1) Figure 1 zwcadclub.com/uploadfile/images/2011-1-20ToptoBottom.png 2. Z and xY direction concurrently: If we only need to machine the perpendicular outside surface of the Part, we can decide the bottom profile and the top profile after which define them as containment attributes. As illustrated in FIG.2. Figure.2 zwcadclub.com/uploadfile/images/2011-1-20Outsurface.png The resulting tool path is shown in the right of FIG.2 If there is any must control the machining height, we can contain in using Bottom and Top containment, as mentioned previously.

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Including tool courses using profiles: As showed in FIG.3, if we need to machine the place between two or more profiles, we only define them as containment attributes and then select the component and containment with the results shown in the right of FIG.3 Figure 3 zwcadclub.com/uploadfile/images/2011-1-20Betweenprofiles.png 4. Angular containment. In FIG.3, we can see that the level space at the base of the bottle was also machined, but because of the measure, we won’t get a good surface finish. We could, of course empower the Identical Cusp Option and ZW3D would add more passes to preserve the desirable cusp height and surface finish. In this example let’s use containment to push ZW3D to machine that is only the steep places of the part. ZW3D merely computes tool course in the areas whose angle is between the Min and Max by establishing a Minimum Angular limit and Maximum Angular limit. The tool path in FIG.4 was included between a minimal 45 and a maximum 90 angles. We’re able to then use an alternative machining procedure, including Zigzag to finish the flatter areas of the blow mould cavity (minimum1and maximum 45) Figure.4 zwcadclub.com/uploadfile/images/2011-1-20Angular limit.png 5.

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Single surface containment: Sometimes there will be a single surface that has to be machined by itself. In this case, we just create Tool course with this surface. So we should select the border of the surface as a profile that is closed, and define it to attribute as follows Figure.5 zwcadclub.com/uploadfile/images/2011-1-20Single surface.png Calculate it, the Tool path just like illustrated in FIG.5. Feature the extent of Tool course in XY direction: In FIG.6, we can see the Tool route extends beyond the borders of the part. By creating the choice of percent % cancel in containment option of Parameter form, the extent of Tool route in XY direction can be controlled as illustrated in FIG.6 Figure.6 zwcadclub.com/uploadfile/images/2011-1-20Extentlimit.png 7. Surface Limiting Containment. For some Parts (Like the Component revealed in FIG.7), we need the tool path to be limited to the underside contour of the part. Figure.7 zwcadclub.com/uploadfile/images/2011-1-20Bottomsurfacelimit.png Notice that in the case of FIG.7, the tool course would waste time in unnecessary air cuts. Hence, we can select all the bottom surfaces as a containment surface characteristic and ZW3D will create the tool path as shown in FIG.8.

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Figure.8 zwcadclub.com/uploadfile/images/2011-1-20Bottomsurfacelimit2.png About ZW3D ZW3D, The All in one CAD/CAM, was comprised into ZWSOFT’s product portfolio in 2010. ZW3D provides ease-of-use, performance, and all in one ability. The brand new applications can extend business-level mechanical engineering and design capabilities to the desktop at a fraction of the cost of other similar systems. Encounter ZW3D 2010, where the only limit is your imagination. Please go to zw3d.zwcad.org/ to download a free 30-day trial today.

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