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boring cycle with dwell feed out
N100 G89 X10 Y10 R.1 F5 Z-1 P1000
A boring cycle using the G89 word where XY is the coordinate for the hole, R is the rapid plane, Z is the depth of the hole, F is the feed rate to the Z depth, P is the dwell at the bottom in milliseconds. This boring cycle does not leave a witness mark during retraction because it feeds out of the hole.