HEIDENHAIN TNC 320 - Page 162

Fixed Cycles: Pocket Milling / Stud Milling / Slot Milling
5.8 POLYGON STUD (Cycle 258, DIN/ISO: G258)
5
162
HEIDENHAIN | TNC 320 | User’s manual for cycle programming | 9/2016
Q220 Radius / Chamfer (+/-)?: Enter the value
for the input form radius or chamfer. If you enter
a positive value between 0 and +99999.9999, the
TNC rounds every corner of the polygon stud. The
radius refers to the value you entered. If you enter
a negative value between 0 and -99999.9999 all
corners of the contour are chamfered and the value
entered refers to the length of the chamfer.
Q368 Finishing allowance for side? (incremental):
Finishing allowance in the machining plane Input
range 0 to 99999.9999
Q207 Feed rate for milling?: Traversing speed of
the tool in mm/min during milling. Input range 0 to
99999.999 alternatively FAUTO, FU, FZ
Q351 Direction? Climb=+1, Up-cut=-1: Type of
milling operation with M3:
+1 = Climb
–1 = Up-cut
PREDEF: The TNC uses the value from the GLOBAL
DEF block (if you enter 0, climb milling is performed)
Q201 Depth? (incremental): Distance between
workpiece surface and bottom of stud. Input range
-99999.9999 to 99999.9999
Q202 Plunging depth? (incremental): Infeed per
cut; enter a value greater than 0. Input range 0 to
99999.9999
Q206 Feed rate for plunging?: Traversing speed of
the tool in mm/min when plunging to depth. Input
range 0 to 99999.999; alternatively FMAX, FAUTO,
FU, FZ
Q200 Set-up clearance? (incremental): Distance
between tool tip and workpiece surface Input range
0 to 99999.9999; alternatively PREDEF
Q203 Workpiece surface coordinate? (absolute):
Coordinate of the workpiece surface. Input range
-99999.9999 to 99999.9999
NC blocks
8 CYCL DEF 258 POLYGON STUD
Q573=1 ;REFERENCE CIRCLE
Q571=50 ;REF-CIRCLE DIAMETER
Q222=120 ;WORKPIECE BLANK
DIA.
Q572=10 ;NUMBER OF CORNERS
Q224=40 ;ANGLE OF ROTATION
Q220=2 ;RADIUS / CHAMFER
Q368=0 ;ALLOWANCE FOR SIDE
Q207=3000;FEED RATE FOR
MILLNG
Q351=1 ;CLIMB OR UP-CUT
Q201=-18 ;DEPTH
Q202=10 ;PLUNGING DEPTH
Q206=150 ;FEED RATE FOR
PLNGNG
Q200=2 ;SET-UP CLEARANCE
Q203=+0 ;SURFACE COORDINATE
Q204=50 ;2ND SET-UP
CLEARANCE
Q370=1 ;TOOL PATH OVERLAP
Q215=0 ;MACHINING
OPERATION
Q369=0 ;ALLOWANCE FOR
FLOOR
Q338=0 ;INFEED FOR FINISHING
Q385=500 ;FINISHING FEED RATE
9 L X+50 Y+50 R0 FMAX M3 M99