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      <title>Unit sensitive filtering and defaults</title>
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      <div class="title_topic3" id="xps10_pagetitle">Unit sensitive filtering and defaults</div>
      <hr noshade="true">
      <p class="para_topic">You can specify length values in different units when filtering components when importing ECAD files into NX, or during an NX Model write operation. This is helpful when using manufacturer's data or design data when creating filters. To specify units for a given length value, simply include the unit abbreviation in square brackets following the value. You can similarly specify units when setting default values in the <i class="fileName">pcbx_ug.ini</i> file. 
      </p>
      <p class="para_topic">The following units are supported:</p>
      <ul>
         <li>
            <p class="para_item">Meters - [m] - conversion to meters X 1 </p>
         </li>
         <li>
            <p class="para_item">Centimeters - [cm] - conversion to meters X 0.01 </p>
         </li>
         <li>
            <p class="para_item">Millimeters - [mm] - conversion to meters X 0.001 </p>
         </li>
         <li>
            <p class="para_item">Inch - [in] - conversion to meters X 0.0254 </p>
         </li>
         <li>
            <p class="para_item">Thousands of Inch - [thou] - conversion to meters X 0.0000254 </p>
         </li>
         <li>
            <p class="para_item">Feet - [ft] - conversion to meters X 0.3048 </p>
         </li>
      </ul>
      <p class="para_topic">If there are no units specified, the filter interprets the value as meters.</p>
      <div class="title_division"> Supported values</div>
      <p class="para_division">All length values in the Filter file (pcbx_ug_filter.ini) are supported.</p>
      <ul>
         <li>
            <p class="para_item">ComponentMinSize </p>
         </li>
         <li>
            <p class="para_item">ComponentMaxSize </p>
         </li>
         <li>
            <p class="para_item">ComponentMinHeight </p>
         </li>
         <li>
            <p class="para_item">ComponentMaxHeight </p>
         </li>
         <li>
            <p class="para_item">DrilledHoleMinDiam </p>
         </li>
         <li>
            <p class="para_item">DrilledHoleMaxDiam  </p>
         </li>
         <li>
            <p class="para_item">CircCutoutsMaxDiam </p>
         </li>
      </ul>
      <p class="para_division">All length values in the Initial Settings file (pcbx_ug_model.ini) are supported.</p>
      <ul>
         <li>
            <p class="para_item">NxWriteDefaultCompHeight </p>
         </li>
         <li>
            <p class="para_item">NxWriteDefaultBoardThk </p>
         </li>
         <li>
            <p class="para_item">NxWriteDefaultHoleDia </p>
         </li>
      </ul>
      <div class="title_division">Example of use in filter file:</div><pre class="indent"># this filter removes small components 
[Remove Small Components L&lt;100thou H&lt;50thou] 
ComponentMinSize=100 [thou] 
ComponentMinHeight=50 [thou]</pre></body>
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