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      <title>Auto Circular</title>
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      <div class="title_topic4" id="xps10_pagetitle">Auto Circular</div>
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      <p class="para_topic">Auto Circular engages and retracts to and from the part along an arc with specified parameters. This is often the preferred method when you must minimize tool deflection and obtain a better surface finish. You may specify an angle and a radius, or an angle only and let the system calculate the optimum radius. Auto Circular displays the following dialog box.</p>
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      <div class="title_figure">Radius and Angle for Engage and Retract</div>
      <div class="title_division">Angle</div>
      <p class="para_division">Angle is the number of degrees of tool arc motion into or away from the part. The value entered is used to determine the length of the arc the tool follows into or out from the part. You can specify a value between 0 and 180 degrees.</p>
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                  <p class="para_note_body"> NOTE: If you enter a value for Angle that results in a collision between the tool and the part, the processor first searches for a smaller radius to avoid collision. If it does not find one, it then uses an Auto Linear engage or retract.</p>
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      <div class="title_division">Radius</div>
      <p class="para_division">Radius is the size of the arc that the tool follows into or away from the part. If you enter the Angle only and then select the Optimize Radius button, the system automatically calculates the optimum radius.</p>
      <div class="title_division">Optimize Radius</div>
      <p class="para_division">Optimize Radius allows the system to automatically calculate the optimum radius based on the Engage and Retract Angle, the Stock value, and the tool type.</p>
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