<!DOCTYPE html
  PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<!--
Copyright (c) 2006 UGS Corp.

All Rights Reserved.

This software and related documentation are proprietary to UGS Corp.
-->
<html>
   <head>
      <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
      <title>Finish Passes</title>
      <script language="javaScript">
        abridged="false";
        displayConditions=new Array();
      </script>
      <link type="text/css" href="../css/main_styles.css" rel="stylesheet">
   </head>
   <body class="bodydocs" onload="top.pageLoader()" bgcolor="#FFFFFF">
      <div class="title_topic3" id="xps10_pagetitle">Finish Passes</div>
      <hr noshade="true">
      <p class="para_topic">Finish Passes allows you to specify the increments and number of finish passes to be used when machining the part.</p>
      <p class="para_topic">The following terms are used in this section. Their definitions are repeated below for convenience.</p>
      <p class="para_topic">Total Depth is the depth you specify under the Total Depth option on the Lathe Thread dialog.</p>
      <p class="para_topic">Finish Thread Depth is the sum of the increments you specify in the menu above.</p>
      <p class="para_topic">Roughing Thread Depth is the Total Depth less the Finish Thread Depth.</p>
      <p class="para_topic">When you generate a thread tool path, the tool cuts to the Roughing Thread Depth using the number of passes determined by the Increment Method and data specified under the Total Depth option. The tool then proceeds to the Finish Thread Depth using the number of passes determined by the Finish Passes data you specified. The increments and number of passes are processed from option 1 to 12.</p>
      <p class="para_topic">For example, if the Total Thread Depth is .5 inches and you enter:</p>
      <p align="center"><img align="bottom" src="graphics/lathe/lthread_fiAt03.gif"></p>
      <p class="para_topic">The finishing passes increments and number of passes total .1 inch. The final .1 inch of the Total Depth is machined in eight passes, the first three passes at increments of .025 and the last five at increments of .005.</p>
      <p class="para_topic">Enter values for up to six increments and the number of passes for each of the increments.</p>
      <table border="0">
         <tr>
            <td valign="top" align="left"><img align="left" src="../graphics/warning.gif" alt="Warning" title="Warning"></td>
            <td valign="bottom" align="left" width="100%">
               <div class="para_warning">
                  <p class="para_warning_body"> : Each number of passes value must be a whole number. The system ignores decimal values. For example, an entered value of 4.5 becomes 45.</p>
               </div>
            </td>
         </tr>
      </table>
      <p class="para_topic">If the sum of the increments is greater than the Total Thread Depth, the following error message displays:</p>
      <p class="para_topic">FINISHING DEPTH PATH EXCEEDS TOTAL DEPTH</p>
      <div class="figure">
         <p align="center"><img align="bottom" src="graphics/lathe/lthread_fiAt02.gif"></p>
      </div>
      <div class="title_figure">Finish - Increment and Number of Passes</div>
   </body>
</html>