Defining A Full Circle; Defining A Pitch Circle - HEIDENHAIN TNC 320 User's Manual For Cycle Programming

Defining a full circle

If you have defined a Workpiece surface in Z not
equal to 0, then this value is effective in addition to
the workpiece surface Q203 that you defined in the
machining cycle.
Bolt-hole circle center X (absolute): Coordinate of
the circle center in the X axis.
Bolt-hole circle center Y (absolute): Coordinate of
the circle center in the Y axis.
Bolt-hole circle diameter: Diameter of the bolt-
hole circle
Starting angle: Polar angle of the first machining
position. Reference axis: Reference axis of the
active machining plane (e.g. X for tool axis Z). You
can enter a positive or negative value
Number of operations: Total number of machining
positions on the circle
Coordinate of workpiece surface (absolute): Enter
Z coordinate at which machining is to begin

Defining a pitch circle

If you have defined a Workpiece surface in Z not
equal to 0, then this value is effective in addition to
the workpiece surface Q203 that you defined in the
machining cycle.
Bolt-hole circle center X (absolute): Coordinate of
the circle center in the X axis.
Bolt-hole circle center Y (absolute): Coordinate of
the circle center in the Y axis.
Bolt-hole circle diameter: Diameter of the bolt-
hole circle
Starting angle: Polar angle of the first machining
position. Reference axis: Reference axis of the
active machining plane (e.g. X for tool axis Z). You
can enter a positive or negative value
Stepping angle/Stopping angle: Incremental polar
angle between two machining positions. You can
enter a positive or negative value. As an alternative
you can enter the end angle (switch via soft key).
Number of operations: Total number of machining
positions on the circle
Coordinate of workpiece surface (absolute): Enter
Z coordinate at which machining is to begin
HEIDENHAIN | TNC 320 | User's manual for cycle programming | 9/2016
PATTERN DEF pattern definition
NC blocks
10 L Z+100 R0 FMAX
11 PATTERN DEF CIRC1
(X+25 Y+33 D80 START+45 NUM8 Z
+0)
NC blocks
10 L Z+100 R0 FMAX
11 PATTERN DEF PITCHCIRC1
(X+25 Y+33 D80 START+45 STEP30
NUM8 Z+0)
2
2.3
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