<!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>Hole parameters overview</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_topic5" id="xps10_pagetitle">Hole parameters overview</div>
      <hr noshade="true">
      <table cellspacing="4" align="center">
         <tr valign="top">
            <td bgcolor="#f7f7f7" colspan="1" rowspan="1">
               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('sheetmetaldes/smfea_hole.html');return(false);">Hole Overview</a></p>
            </td>
            <td bgcolor="#f7f7f7" colspan="1" rowspan="1">
               <p class="para_td"> Options</p>
            </td>
            <td bgcolor="#f7f7f7" colspan="1" rowspan="1">
               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('sheetmetaldes/build_multi_parts.html');return(false);">Related Topics</a></p>
            </td>
         </tr>
      </table><br><div class="title_division">Method</div>
      <p class="para_division">The <b class="uiTerm">Method</b> options menu lets you select either <b class="uiTerm">Edge Offsets</b> or<b class="uiTerm"> Relative Positioning and Orientation</b> (RPO) to position the hole.
      </p>
      <p class="para_division">When using <b class="uiTerm">Edge Offsets</b>, you need to select two edges in the<b class="uiTerm">Edge Offset 1</b> and <b class="uiTerm">Edge Offset 2</b> selection steps.
      </p>
      <p class="para_division">When using the <b class="uiTerm">RPO</b> positioning method, you don't need to select <b class="uiTerm">Offset Edges</b> or enter <b class="uiTerm">Edge Offset</b> values. You should specify feature parameters then select the <b class="uiTerm">OK</b> or <b class="uiTerm">Apply</b> buttons. The tool body (such as a cylinder) is built and positioned in some default position based on the pick point. You are then given the chance to add <b class="uiTerm">RPO Dimensions</b> to the feature. If the <b class="uiTerm">Placement Face</b> is non&ndash;planar, you must select a face (or datum plane) to serve as a reference plane for the RPO dimensions. For the hole, the RPO dimensions will specify the position of the hole center on the reference plane. If the <b class="uiTerm">Placement Face</b> and the reference plane are different, the hole center point will be projected along the RPO reference plane normal vector to the placement face.
      </p>
      <table border="0">
         <tr>
            <td valign="top" align="left"><img align="left" src="../graphics/note.gif" alt="Note" title="Note"></td>
            <td valign="bottom" align="left" width="100%">
               <div class="para_note">
                  <p class="para_note_body">See the explanations of <b class="uiTerm">Model State</b>, <b class="uiTerm">Edit Parameters</b>, <b class="uiTerm">Edit Positioning Dimensions</b>, and <b class="uiTerm">Update</b> in this section, which explains how RPO is affected by the state (such as formed or unformed) of the features on which the hole is placed.
                  </p>
               </div>
            </td>
         </tr>
      </table>
      <div class="title_division">Edge 1 offset</div>
      <p class="para_division">The <b class="uiTerm">Edge 1 Offset</b> value is used to offset the first offset edge into (or outside of) the face and intersect with the <b class="uiTerm">Second Offset Edge</b>. This value may be either positive or negative.
      </p>
      <div class="title_division">Edge 2 offset</div>
      <p class="para_division">The <b class="uiTerm">Edge 2 Offset</b> value is used to offset the <b class="uiTerm">Second Offset Edge</b> into (or outside of) the face and intersect with the <b class="uiTerm">First Offset Edge</b>. This value may be either positive or negative.
      </p>
      <div class="title_division">Type</div>
      <p class="para_division">You can use the <b class="uiTerm">Type</b> options menu to create three different types of sheet metal holes:
      </p>
      <ol type="1" start="1">
         <li>
            <p class="para_item"><b class="uiTerm">Punch</b> &ndash; This is the default, and requires a placement face and two edges or RPOs to be specified. A punch hole pierces one thickness of the solid body.
            </p>
         </li>
         <li>
            <p class="para_item"><b class="uiTerm">Through</b> &ndash; This type requires a placement face, two edges or RPO's, and a second face to which the hole will extend. The <b class="uiTerm">Through Hole</b> type pierces all faces and bodies in its path between the placement face and the through face. The diameter, position, and orientation of through holes are associative to the first (or master) hole that lies on the placement face.
            </p>
         </li>
         <li>
            <p class="para_item"><b class="uiTerm">Depth</b> &ndash; This type requires a placement face, two edges or RPO's, a depth value, and, optionally, a tip angle to be specified.
            </p>
         </li>
      </ol>
   </body>
</html>