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      <title>Understanding the Post Builder vs. the Machine Tool Builder</title>
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      <div class="title_topic2" id="xps10_pagetitle">Understanding the Post Builder vs. the Machine Tool Builder</div>
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            <p class="para_item">In order to simulate a machine tool correctly (<b class="uiTerm">MTD</b> model), you need MTD and VNC files. You can create these either by editing example files by hand, or by using Post Builder.
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            <p class="para_item">Post Builder creates standard post files (not simulation MTD or VNC files). You can edit post files so they become MTD files by adding in the VNC calls, or use them as is for the <b class="uiTerm">CSE</b> model.
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            <p class="para_item">The <b class="uiTerm">Machine Tool Builder</b> provides the link between machine geometry and its kinematics definition for simulation.
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            <p class="para_item">When you use the default settings of the post or MTD, several of the kinematics machine definition variables in the <b class="uiTerm">Machine Tool Builder</b> override those specified in Post Builder. 
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