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      <title>Create Mill Boundary Group For The Step Face</title>
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      <div class="title_topic3" id="xps10_pagetitle">Create Mill Boundary Group For The Step Face</div>
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      <p class="para_topic">In the following steps, you will create a Mill Boundary group inside of the TOP Mill Orientation group. This group will contain a Blank boundary defining the step face to be roughed and finished by two Face Mill operations.</p>
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            <p class="para_item">Choose the Create Geometry icon in the main menu to display the Create Geometry dialog box. Choose the Tool View icon in the main menu bar to display the corresponding Geometry view of the Operation Navigator.</p>
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            <p class="para_item">Choose the Mill_Boundary (a) button. Choose TOP (b above) in the Parent scroll list.</p>
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            <p class="para_item">Key in the word STEP_FACE in the Name field (c above). This is the name of the Mill Boundary group that will appear in the Operation Navigator.</p>
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            <p class="para_item">Choose OK (d above). This displays a dialog box that enables you to specify boundaries defining Part, Blank and Check geometry.</p>
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      <p align="center"><img align="bottom" src="graphics/ont_examplefi20.gif"></p>
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            <p class="para_item">Choose the Blank icon and Select. This displays the Blank Boundary dialog box. Choose the Curve Boundary button and then select the four edges illustrated below.</p>
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            <p class="para_item">Choose OK to complete the definition of the blank geometry and return you to the Create Geometry dialog box. The STEP_FACE group should now appear inside the TOP group in the Geometry view of the Operation Navigator as illustrated below.</p>
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      <p class="para_topic">The following Face Mill operations will use the STEP_FACE geometry group to define the face to be machined.</p>
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