HEIDENHAIN TNC 128 (77184x-01) - Manual (Page 436)

436 Fixed cycles: Pocket milling / stud milling / slot milling
1
7.3 RECT
ANGULAR S
T
UD (Cy
c
le
256)
 Set-up clearance Q200 (incremental): Distance
between tool tip and workpiece surface. Input range
0 to 99999.9999
 Workpiece surface coordinate Q203 (absolute):
Absolute coordinate of the workpiece surface. Input
range -99999.9999 to 99999.9999
 2nd set-up clearance Q204 (incremental): Coordinate
in the spindle axis at which no collision between tool
and workpiece (fixtures) can occur. Input range 0 to
99999.9999
 Climb or up-cut Q351: Type of milling operation with
M3:
+1 = Climb milling
–1 = Up-cut milling
 Path overlap factor Q370: Q370 x tool radius =
Stepover factor k. Input range 0.1 to 1.9999.
Example: NC blocks
8 CYCL DEF 256 RECTANGULAR STUD
Q215=0 ;MACHINING OPERATION
Q218=60 ;1ST SIDE LENGTH
Q424=74 ;WORKPC. BLANK SIDE 1
Q219=40 ;2ND SIDE LENGTH
Q425=60 ;WORKPC. BLANK SIDE 2
Q201=–20 ;DEPTH
Q367=0 ;STUD POSITION
Q202=5 ;PLUNGING DEPTH
Q207=500 ;FEED RATE FOR MILLING
Q206=150 ;FEED RATE FOR PLNGNG
Q385=500 ;FEED RATE FOR FINISHING
Q368=0.2 ;ALLOWANCE FOR SIDE
Q369=0.1 ;ALLOWANCE FOR FLOOR
Q338=5 ;INFEED FOR FINISHING
Q200=2 ;SET-UP CLEARANCE
Q203=+0 ;SURFACE COORDINATE
Q204=50 ;2ND SET-UP CLEARANCE
Q351=+1 ;CLIMB OR UP-CUT
Q370=1 ;TOOL PATH OVERLAP
9 X+50 R0 FMAX
9 Y+50 R0 FMAX M3 M99
X
Z
Q200
Q201
Q206
Q203
Q204
Q202