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      <title>Step 2. Modify the Box with Trim Solid</title>
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      <div class="title_topic4" id="xps10_pagetitle">Step 2. Modify the Box with Trim Solid</div>
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      <p class="para_topic">In this step, you will trim the box to the shape of the workpiece. <b class="uiTerm">Trim Solid </b>provides two approaches for defining the details of a sparking head.
      </p>
      <ul>
         <li>
            <p class="para_item">Create a box and trim it in one continuous operation.</p>
         </li>
         <li>
            <p class="para_item">Choose an existing box and trim it.</p>
         </li>
      </ul>
      <p class="para_topic">In this scenario, you will trim an existing box using the <b class="uiTerm">Create Bounding Box </b>selection step.
      </p>
      <div class="action">
         <p class="para_action1"><img src="../graphics/actarrow.gif">On the <b class="uiTerm">Electrode Design </b><a class="links" href="javascript:void(0)" onclick="top.popUpPage('nxelectrode_design/index.html?goto=nxelectrode_design/nx_electrode_toolbar.html&amp;vars=-aux,-home','link','menubar=yes,status=no,resizable=yes,toolbar=no,scrollbars=yes,location=no,directories=no,height=600,width=500,left=100,top=100');return(false);">toolbar</a>, choose <b class="uiTerm">Trim Solid</b> <img align="bottom" src="../graphic_library/icons/toolbars/wizards/electrode_design/trim_solid.gif" border="0">.
         </p>
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      <div class="action">
         <p class="para_action1"><img src="../graphics/actarrow.gif">On the <b class="uiTerm">Trim Solid</b> dialog box, choose <b class="uiTerm">Create Bounding Box</b>.
         </p>
      </div>
      <p class="para_topic">The <b class="uiTerm">Trim Solid </b>dialog box presents a new set of parameters.
      </p>
      <div class="action">
         <p class="para_action1"><img src="../graphics/actarrow.gif">Choose <b class="uiTerm">Existing Box</b>.
         </p>
      </div>
      <div class="action">
         <p class="para_action1"><img src="../graphics/actarrow.gif">In the graphics window, select the box you created in the previous step.
         </p>
      </div>
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               <td align="center" colspan="1" rowspan="1">
                  <p align="center"><img align="bottom" src="graphics/create_box_sizing_3.gif"></p>
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                  <p class="para_td"><b class="uiTerm">Selected Box</b></p>
               </td>
            </tr>
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      </table><br><div class="action">
         <p class="para_action1"><img src="../graphics/actarrow.gif">On the <b class="uiTerm">Trim Solid</b> dialog box, choose <b class="uiTerm">Select Face</b>.
         </p>
      </div>
      <p class="para_topic">Make sure the <b class="uiTerm">Concave</b> parameter is active.
      </p>
      <div class="action">
         <p class="para_action1"><img src="../graphics/actarrow.gif">Select the face on the workpiece as shown:
         </p>
      </div>
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            <col span="1" width="100*">
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            <tr bgcolor="" valign="middle">
               <td align="center" colspan="1" rowspan="1">
                  <p align="center"><img align="bottom" src="graphics/case_4_select_face1.gif"></p>
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                  <p class="para_td"><b class="uiTerm">Trim Solid: Select Face</b></p>
               </td>
            </tr>
         </tbody>
      </table><br><p class="para_topic">The result should look like this:</p>
      <table border="0" cellpadding="2" cellspacing="1" frame="void" rules="none" width="434" align="center">
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            <col span="1" width="100*">
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               <td align="center" colspan="1" rowspan="1">
                  <p align="center"><img align="bottom" src="graphics/case_4_face1_result.gif"></p>
               </td>
            </tr>
            <tr bgcolor="" valign="middle">
               <td align="center" colspan="1" rowspan="1">
                  <p class="para_td"><b class="uiTerm">Selected Face Preview</b></p>
               </td>
            </tr>
         </tbody>
      </table><br><p class="para_topic">To trim the box, you need to add one more face. </p>
      <div class="action">
         <p class="para_action1"><img src="../graphics/actarrow.gif">To add the face, on the <b class="uiTerm">Trim Solid</b> dialog box, move the <b class="uiTerm">Search Level </b> slider to<b class="uiTerm"> 3</b>.
         </p>
      </div>
      <p class="para_topic">The additional face is automatically added to the selection.</p>
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                  <p align="center"><img align="bottom" src="graphics/case_4_all_faces.gif"></p>
               </td>
            </tr>
            <tr bgcolor="" valign="middle">
               <td align="center" colspan="1" rowspan="1">
                  <p class="para_td"><b class="uiTerm">Trimmed Faces Preview</b></p>
               </td>
            </tr>
         </tbody>
      </table><br><p class="para_topic">The<b class="uiTerm"> Search Level</b> slider provides a dynamic method for selecting multiple faces at once. You can use this slider to increase or decrease the number of faces within a collection of several faces.
      </p>
      <div class="action">
         <p class="para_action1"><img src="../graphics/actarrow.gif">On the <b class="uiTerm">Trim Solid</b> dialog box, click <b class="uiTerm">Preview</b>.
         </p>
      </div>
      <table border="0" cellpadding="2" cellspacing="1" frame="void" rules="none" width="434" align="center">
         <colgroup span="1">
            <col span="1" width="100*">
         </colgroup>
         <tbody>
            <tr bgcolor="" valign="middle">
               <td align="center" colspan="1" rowspan="1">
                  <p align="center"><img align="bottom" src="graphics/case_4_all_faces.gif"></p>
               </td>
            </tr>
            <tr bgcolor="" valign="middle">
               <td align="center" colspan="1" rowspan="1">
                  <p class="para_td"><b class="uiTerm">Trimmed Solid Preview</b></p>
               </td>
            </tr>
         </tbody>
      </table><br><p class="para_topic">The <b class="uiTerm">Trim Solid Preview </b>function is allows you to see if the specified inputs (for example, the box size and selected trim faces) will produce a successful result.  If the preview fails and the message &ldquo;Preview failed.&rdquo; is displayed in the prompt line, the input values will not succeed.  In most unsuccessful situations, you can adjust the box size of select and deselect trim faces to correct the failure.
      </p>
      <div class="action">
         <p class="para_action1"><img src="../graphics/actarrow.gif">On the <b class="uiTerm">Trim Solid</b> dialog box, click <b class="uiTerm">OK</b>.
         </p>
      </div>
      <div class="action">
         <p class="para_action1"><img src="../graphics/actarrow.gif">Hide the workpiece to see the trimmed solid.
         </p>
      </div>
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               <td align="center" colspan="1" rowspan="1">
                  <p align="center"><img align="bottom" src="graphics/case_4_final_trim.gif"></p>
               </td>
            </tr>
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               <td align="center" colspan="1" rowspan="1">
                  <p class="para_td"><b class="uiTerm">Final Trimmed Solid</b></p>
               </td>
            </tr>
         </tbody>
      </table><br><div class="action">
         <p class="para_action1"><img src="../graphics/actarrow.gif">Close the part file.
         </p>
      </div>
      <div class="action">
         <p class="para_action1"><img src="../graphics/actarrow.gif">To continue, click the <b class="uiTerm">Next </b> button.
         </p>
      </div>
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