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      <title>Head Overview</title>
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      <div class="title_topic4" id="xps10_pagetitle"><img align="bottom" src="../graphic_library/icons/dialogs/manufacturing/create_tool/carrier.gif" border="0">&nbsp; Head Overview
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               <p class="para_td">Overview</p>
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               <p class="para_td"><a class="links" href="javascript:void(0)" onclick="top.openFile('mfggeneral/parent_group_tool_head_procedure.html');return(false);">How To</a></p>
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               <p class="para_td"><a class="links" href="javascript:void(0)" onclick="top.openFile('mfggeneral/parent_group_tool_head_options.html');return(false);">Options</a></p>
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      </table><br><p class="para_topic">The head object can be found in the <b class="uiTerm">Create Tool</b> dialog. The head object can have only carriers as parents.  Only pockets or tools may be placed under a head.
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      <p class="para_topic">You can specify an angled head by selecting the head axis with a vector. This vector will be used to output rotary and linear coordinates for your machine tool.    The head object will not change the tool axis or the goto points in the operation.</p>
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                  <p class="para_note_body">The <b class="uiTerm">Head</b> object replaces the previous HOLDER functionality.  
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      <p class="para_topic">For the Postprocessor, the head's kinematics are passed as mom variables to the Machine Tool Drivers (MTD) used for Integrated Simulation &amp; Verification (ISV). The MTD then makes a new junction to correctly orient the tool. In the <b class="uiTerm">Machine Tool</b> view of the <b class="uiTerm">Operation Navigator</b>, place an operation under the appropriate head object to process the goto points in the generated tool paths with the correct kinematics information. <b class="uiTerm">Head</b> doesn't send output to the CLSF. The tool path contains the correct rotated coordinates.  A head used in this manner has the same affect on the tool path as a HOLDER command on the LOAD UDE had in pervious versions.   
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      <p class="para_topic">The usage of the new head depends on the new kinematics. The mom_kin_iks_usage flag must be set to 1, for the software to use the head object in the tool view. In <b class="uiTerm">NX 4</b> and later; only the head object and the new mom variables will be used, the HOLDER word will be ignored.  
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      <p class="para_topic">There is no vocabulary output to the CLSF for the head object. The tool path itself will contain the correct rotated coordinates.</p>
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