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      <title>Cycle Start</title>
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      <div class="title_topic6" id="xps10_pagetitle">Cycle Start</div>
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      <p class="para_topic">Most canned cycles are defined and executed with a single block. You can define how your canned cycles are defined and executed.</p>
      <p class="para_topic">G81 X Y Z R F </p>
      <p class="para_topic">This causes a hole to be drilled at location XY. However, some controls need a definition block and an execution block (Cycle Start Block). </p>
      <p class="para_topic">G81 Z R F </p>
      <p class="para_topic">G79 X Y </p>
      <p class="para_topic">The G79 block causes the machine to drill a hole at location XY. If you only need a G79 XY block, you can remove the Z from the G79 block. If you require a different G code, you can modify the G code. </p>
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