
B–63294EN/02
2. MACHINING MENU DESCRIPTIONS
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(2) Explanation of input items
R : CUT PT. U/R
– CUT PT. U (U–axis machining)
Specify the U coordinate (in the workpiece coordinate system) of the cutting start point by enter-
ing a radius value. When this item is not specified, an automatically calculated point is used for
machining.
<Automatic calculation>
– CUT PT. U = [Hole diameter/2] – [cutting condition No. 793]
As the hole diameter, the diameter specified for a prepared hole or the maximum nominal
diameter of the tools used for hole preparation is to be used.
– R (Hole preparation)
This item specifies the Z coordinate of a cutting feed start point for hole preparation. This item
is automatically determined when the [F.S. AUTO] soft key is pressed.
Z : CUT PT. Z/Z
– CUT PT. Z (U–axis machining)
Specify the Z coordinate (in the workpiece coordinate system) of the cutting start point. When this
item is not specified, an automatically calculated point is used for machining.
<Automatic calculation>
– CUT PT. Z = [Workpiece surface Z coordinate] – [start point Z coordinate]
– Z (Hole preparation)
This item specifies the Z coordinate of the deepest point to be reached by the tool during cutting
feed for hole preparation. This item is automatically determined when the [F.S. AUTO] soft key
is pressed.
E : DWELL
Specify a dwell time (in seconds) to be observed at the bottom of a groove or prepared hole. The
dwell time for drilling is automatically determined when the [F.S. AUTO] soft key is pressed. After
a value has been automatically determined, it can be modified as required. When this item is not
specified in U–axis machining, an automatically calculated value is used.
<Automatic calculation>
– Dwell time = [Time per rotation] * [cutting condition No. 800]
For an explanation of other input items, refer to ”(2) Explanation of input items” of ”Inner contour.”