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      <title>Controlling the Tool Axis</title>
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      <div class="title_topic4" id="xps10_pagetitle">Controlling the Tool Axis</div>
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      <p class="para_topic">Tool axis control is an important consideration for Contour Profile operations.</p>
      <p class="para_topic">The <b class="uiTerm">Automatic</b> tool axis option computes the tool axis from the normal to the wall bottom's trace curve. This generally gives acceptable results. In the following example, <b class="uiTerm">Automatic</b> gives an undesirable tool axis.
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         <p align="center"><img align="bottom" src="graphics/cont_prof-tool_axis-automatic.gif"></p>
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      <div class="title_figure">Automatic Tool Axis Control Option</div>
      <p class="para_topic">Using two guide vectors (A and B) at the start and end of the tool path gives an acceptable tool axis</p>
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         <p align="center"><img align="bottom" src="graphics/cont_prof-tool_axis-guided.gif"></p>
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      <div class="title_figure">Guided Tool Axis Control Option</div>
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