HEIDENHAIN iTNC 530 (340 422) ISO programming User Manual
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8 Programming: Cycles
8.4 Cy
cles f
o
r Mil
ling P
o
c
k
e
ts, St
ud
s an
d Slo
ts
U
U
U
U
Set-up clearance
Q200 (incremental value): Distance
between tool tip and workpiece surface.
U
U
U
U
Workpiece surface coordinate
Q203 (absolute
value): Absolute coordinate of the workpiece surface
U
U
U
U
2nd set-up clearance
Q204 (incremental value):
Coordinate in the tool axis at which no collision
between tool and workpiece (clamping devices) can
occur.
U
U
U
U
Path overlap factor
Q370: Q370 x tool radius =
stepover factor k.
U
U
U
U
Plunging strategy
Q366: Type of plunging strategy.
n
0 = vertical plunging. In the tool table, the plunging
angle ANGLE for the active tool must also be defined
as 0. The TNC will otherwise display an error
message.
n
1 = helical plunging. In the tool table, the plunging
angle ANGLE for the active tool must be defined not
equal to 0. The TNC will otherwise display an error
message.
Example: NC blocks
N80 G252 CIRCULAR POCKET
Q215=0
;MACHINING OPERATION
Q223=60
;CIRCLE DIAMETER
Q368=0.2
;ALLOWANCE FOR SIDE
Q207=500
;FEED RATE FOR MILLING
Q351=+1
;CLIMB OR UP-CUT
Q201=-20
;DEPTH
Q202=5
;PLUNGING DEPTH
Q369=0.1
;ALLOWANCE FOR FLOOR
Q206=150
;FEED RATE FOR PLNGNG
Q338=5
;INFEED FOR FINISHING
Q200=2
;SET-UP CLEARANCE
Q203=+0
;SURFACE COORDINATE
Q204=50
;2ND SET-UP CLEARANCE
Q370=1
;TOOL PATH OVERLAP
Q366=1
;PLUNGING
N90 G79:G01 X+50 Y+50 F10000 M3
X
Z
Q200
Q204
Q203
Q369
Q368