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      <div class="title_topic4" id="xps10_pagetitle">Port connections</div>
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      </table><br><p class="para_topic">When standard parts are positioned using ports, the relationship between their connecting ports is as follows:</p>
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            <p class="para_item">The alignment vectors must be collinear and point in the opposite direction.</p>
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            <p class="para_item">The distance between the positions must be equal to the smaller of the two engagement distances.</p>
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            <p class="para_item">A rotation angle, or <em>clocking angle</em>, defines the relationship between the rotation vectors, with the default angle being 0&deg;.
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      <div class="title_division">Port engagement distance</div>
      <p class="para_division">Port engagement values define how much a given part or stock should insert into another part. Since ports point away from the parts, the engagement is into the part, such as, in the opposite direction of the alignment vector.</p>
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      <p class="para_division">Non-negative engagement values define a limit which a part can engage the given port. When you align ports, the minimum non-negative engagement distance is always used to limit the engagement.</p>
      <p class="para_division">In the example below, Port A has an engagement of 2, and ports B and C have engagements of 3 and 1, respectively. When you connect port A to port B, the minimum, 2, is the amount the parts are engaged. When you connect port A to port C, the minimum, 1, is the engagement used for the connection.</p>
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