BORING CYCLE (G86)

BORING CYCLE (G86)

The G86 cycle is intended for boring. This cycle uses a P number for the number of seconds to dwell.

Program: G86 X~ Y~ Z~ A~ R~ L~ P~

The G86 cycle is as follows:

  • Step 1: Preliminary canned cycle motion.
  • Step 2: Move the Z-axis only at the current feed rate to the Z position.
  • Step 3: Dwell for the P number of seconds.
  • Step 4: Stop the spindle turning.
  • Step 5: Retract the Z-axis at traverse rate to clear Z.
  • Step 6: Restart the spindle in the direction it was going.
  • Step 7: Move the Z-axis only at the current feed rate to the Z position.

TROUBLESHOOTING

It’s an error if:

  • The spindle is not turning before this cycle is executed
BORING CYCLE (G86)