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      <title>Trim-Based Parting Concept</title>
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      <div class="title_topic3" id="xps10_pagetitle">Trim-Based Parting Concept</div>
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      <p class="para_topic">Many of the modeling operations involved in trim-based parting are automated. The trim-based parting concept is explained in the following table.</p>
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            <td colspan="1" rowspan="1" width="50%">
               <p class="para_td">Part</p>
            </td>
            <td colspan="1" rowspan="1" width="50%">
               <p class="para_td">Description</p>
            </td>
         </tr>
         <tr valign="top">
            <td colspan="1" rowspan="1" width="50%">
               <p align="center"><img align="bottom" src="graphics/illustrations/parting_trim_1.gif"></p>
            </td>
            <td colspan="1" rowspan="1" width="50%">
               <ol type="1" start="1">
                  <li>
                     <p class="para_item">Work Piece</p>
                  </li>
                  <li>
                     <p class="para_item">Product Model</p>
                  </li>
               </ol>
               <p class="para_td">The Mold Wizard parting process occurs in the &quot;parting part.&quot; Two types of bodies exist in the parting part:</p>
               <ul>
                  <li>
                     <p class="para_item">A geometry-linked copy of the shrink part.</p>
                  </li>
                  <li>
                     <p class="para_item">Two work piece bodies that define the cavity and core bodies.</p>
                  </li>
               </ul>
            </td>
         </tr>
         <tr valign="top">
            <td colspan="1" rowspan="1" width="50%">
               <p align="center"><img align="bottom" src="graphics/illustrations/parting_trim_2.gif"></p>
            </td>
            <td colspan="1" rowspan="1" width="50%">
               <ol type="1" start="1">
                  <li>
                     <p class="para_item">External Parting</p>
                  </li>
                  <li>
                     <p class="para_item">Internal Parting</p>
                  </li>
               </ol>
               <p class="para_td">The parting process involves the creation of two types of parting surfaces:</p>
               <ul>
                  <li>
                     <p class="para_item">Internal, shut-off surfaces for openings within the part.</p>
                  </li>
                  <li>
                     <p class="para_item">External, shut-off surfaces extending from the exterior parting lines.</p>
                  </li>
               </ul>
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            <td colspan="1" rowspan="1" width="50%">
               <p align="center"><img align="bottom" src="graphics/illustrations/parting_trim_3.gif"></p>
            </td>
            <td colspan="1" rowspan="1" width="50%">
               <ol type="1" start="1">
                  <li>
                     <p class="para_item">Cavity Region (red)</p>
                  </li>
                  <li>
                     <p class="para_item">Cavity Boundary (blue)</p>
                  </li>
               </ol>
               <p class="para_td">The core and cavity faces are grouped and copied with an automated Extract Regions process. Then, the extracted cavity and core regions are each sewn to sets of parting surfaces to form two sets of trim sheets (one for the cavity and one for the core).</p>
            </td>
         </tr>
         <tr valign="top">
            <td colspan="1" rowspan="1" width="50%">
               <p align="center"><img align="bottom" src="graphics/illustrations/parting_trim_4.gif"></p>
            </td>
            <td colspan="1" rowspan="1" width="50%">
               <ol type="1" start="1">
                  <li>
                     <p class="para_item">Cavity Seed Sheet</p>
                  </li>
                  <li>
                     <p class="para_item">Cavity Seed Datum</p>
                  </li>
               </ol>
               <p class="para_td">The trim sheets sets are geometry-linked to the cavity and core components and sewn to seed sheets.</p>
            </td>
         </tr>
         <tr valign="top">
            <td colspan="1" rowspan="1" width="50%">
               <p align="center"><img align="bottom" src="graphics/illustrations/parting_trim_5.gif"></p>
            </td>
            <td colspan="1" rowspan="1" width="50%">
               <ol type="1" start="1">
                  <li>
                     <p class="para_item">Cavity Trim Sheet</p>
                  </li>
               </ol>
               <p class="para_td">The core and cavity are trimmed by geometry-linked copies of the parting sheets.</p>
            </td>
         </tr>
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