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      <title>Optimized to Drive</title>
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      <div class="title_topic2" id="xps10_pagetitle">Optimized to Drive</div>
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      <p class="para_topic"><img align="bottom" src="graphics/mfg_mill_opt_tool_axis1_cm4000.gif" border="0"></p>
      <p class="para_topic">The <b class="uiTerm">Optimized to Drive</b> tool axis control method matches tool lead angle to the drive geometry curvature. In convex areas, NX maintains a small lead angle to remove more material. In concave regions, NX automatically increases the lead angle to prevent the tool heel from gouging the drive geometry, and also keeps the lead angle small enough to prevent the forehead of the cutter from gouging the drive geometry.
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         <p align="center"><img align="bottom" src="graphics/tlax-opt2drive.gif"></p>
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      <div class="title_figure">Tool lead angle matched to drive geometry requirements</div>
      <p class="para_topic">A = cutter toe, B = cutter heel, C = heel gouging D = forehead of cutter gouging, E = drive geometry</p>
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               <p class="para_th"><b class="uiTerm">Optimized to Drive</b> Options
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               <p class="para_th">Description</p>
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               <p class="para_td"><b class="uiTerm">Minimum Heel Clearance Distance</b></p>
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               <p class="para_td">The minimum distance you want the heel to clear the drive geometry.</p>
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               <p class="para_td"><b class="uiTerm">Maximum Lead Angle</b></p>
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               <p class="para_td">Use <b class="uiTerm">Maximum Lead Angle</b> to specify the maximally allowed lead angle for reasons other than gouge avoidance. NX automatically performs gouge avoidance.  (optional) 
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                     <td valign="top" align="left"><img align="left" src="../graphics/note.gif" alt="Note" title="Note"></td>
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                           <p class="para_note_body">It's recommended to leave this option off and allow NX to determine the optimal solution automatically.</p>
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               <p class="para_td"><b class="uiTerm">Nominal Lead Angle</b></p>
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               <p class="para_td"> Use <b class="uiTerm">Nominal Lead Angle</b> to specify the preferred lead angle to optimize the cutting condition for reasons other than optimal material removal. <b class="uiTerm">Optimized to Drive</b> automatically optimizes material removal. (optional)
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                     <td valign="top" align="left"><img align="left" src="../graphics/note.gif" alt="Note" title="Note"></td>
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                        <div class="para_note">
                           <p class="para_note_body">It's recommended to leave this option off and allow NX to determine the optimal solution automatically.</p>
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               <p class="para_td"><b class="uiTerm">Tilt Angle</b></p>
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               <p class="para_td">A fixed tilt angle value. The default is 0.</p>
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               <p class="para_td"><b class="uiTerm">Apply Smoothing</b></p>
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               <p class="para_td">Select <b class="uiTerm">Apply Smoothing</b> for a higher quality finish.
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         <p align="center"><img align="bottom" src="graphics/surfcont_figuressc97.gif"></p>
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      <div class="title_figure">Tilt, lead, and lag angles</div>
      <p class="para_topic">Benefits of <b class="uiTerm">Optimized to Drive</b> include:
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            <p class="para_item">Ensures the tool path is gouge free, and without uncut regions.  </p>
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            <p class="para_item">Ensures maximum material removal to reduce machining time.</p>
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            <p class="para_item">Ensures cutting with the toe to prolong tool life.</p>
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            <td valign="top" align="left"><img align="left" src="../graphics/note.gif" alt="Note" title="Note"></td>
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                  <p class="para_note_body"><b class="uiTerm">Optimized to Drive</b> is only available for the <b class="uiTerm">Surface Area</b> drive method.
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