This part has a Groove feature, shown in pink:
The default behavior is for the tool to lift off the part at 90
, shown in the following image by
, after each plunge cut. This results in tool contact with the uncut material, at
, when the tool is retracting at a rapid feed rate along the X axis:
You can avoid this by using the
Side liftoff dist. attribute, to move the tool back along the Z axis
, before lifting off.
Note: Side liftoff dist and
Side liftoff angle are ignored for the retract move at the end of the first plunge. The liftoff move is performed at the plunge feed rate. If the groove is a round-bottomed groove, then liftoff is not used, even when specified.