HEIDENHAIN TNC 320 User Manual page 77

Cycle parameters
U
Set-up clearance Q200 (incremental): Distance
between tool tip and workpiece surface. Input range
0 to 99999.9999
U Depth of counterbore Q249 (incremental): Distance
between underside of workpiece and the top of the
hole. A positive sign means the hole will be bored in
the positive spindle axis direction. Input range
-99999.9999 to 99999.9999
U
Material thickness Q250 (incremental): Thickness of
the workpiece. Input range 0.0001 to 99999.9999
U Off-center distance Q251 (incremental): Off-center
distance for the boring bar; value from tool data sheet.
Input range 0.0001 to 99999.9999
U
Tool edge height Q252 (incremental): Distance
between the underside of the boring bar and the main
cutting tooth; value from tool data sheet. Input range
0.0001 to 99999.9999
U Feed rate for pre-positioning Q253: Traversing
speed of the tool in mm/min when plunging into the
workpiece, or when retracting from the workpiece.
Input range 0 to 99999.999; alternatively FMAX,
FAUTO
U Feed rate for back boring Q254: Traversing speed
of the tool during back boring in mm/min. Input range
0 to 99999.999; alternatively FAUTO, FU
U Dwell time Q255: Dwell time in seconds at the top of
the bore hole. Input range 0 to 3600.000
HEIDENHAIN TNC 320 77