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      <title>Projection Vector recommendations</title>
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      <div class="title_topic3" id="xps10_pagetitle">Projection Vector recommendations</div>
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      <p class="para_topic">The drive curve pattern itself is not a tool path. It must be projected onto the part to create the tool path. Selection of the projection vector is very important for producing a good quality tool path. The recommendations are:</p>
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         <li>
            <p class="para_item"><b class="uiTerm">Tool Axis</b> or <b class="uiTerm">Specify Vector</b></p>
            <p class="para_item">Use these options for cases where the vector will not be parallel to the targeted surfaces.</p>
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         <li>
            <p class="para_item"><b class="uiTerm">Away from Point</b>, <b class="uiTerm">Toward Point</b>, and <b class="uiTerm">Away from Line</b>, <b class="uiTerm">Toward Line</b></p>
            <p class="para_item">Use these options for cases where you have a combination of surfaces where a single vector will not be at a sufficient angle for all the surfaces.</p>
            <p class="para_item">Make sure that the point or line you choose is located so that the cutter can reach the entire area to cut when projected from or towards the specified point or line. When using away, make sure the tool does not gouge the part when its tip is located on the point or line. Use <b class="uiTerm">Away from Point</b> or <b class="uiTerm">Away from Line</b> when machining a cavity. Use <b class="uiTerm">Toward Point</b> or <b class="uiTerm">Toward Line</b> when machining a core.
            </p>
            <p class="para_item">These options do not rely on the drive surface normals, and are robust for handling parts where the tool radius is larger than the part features (fillet radii, corners, and so on).</p>
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         <li>
            <p class="para_item"><b class="uiTerm">Normal to Drive</b> and <b class="uiTerm">Toward Drive</b></p>
            <p class="para_item">Use these options for cases where the normals to the drive surface are well defined and change very smoothly. Use <b class="uiTerm">Toward Drive</b> to machine cavities, and <b class="uiTerm">Normal to Drive</b> to machine cores.
            </p>
            <p class="para_item">They may not be robust in some cases where the tool radius is larger than the part features (fillet radii, corners, and so on).</p>
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