HEIDENHAIN TNC 410 ISO Programming - Manual (Page 237)

HEIDENHAIN TNC 410, TNC 426, TNC 430 211
8.3 Cy
cles f
o
r Dr
illing
, T
a
p
p
ing
and
Th
read Millin
g U U U U Feed rate for pre-positioning Q253: Traversing
speed of the tool when moving in and out of the
workpiece, in mm/min.
U U U U Climb or up-cut Q351: Type of milling operation with
M03
+1 = climb milling
–1 = up-cut milling
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): 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 Feed rate for milling Q207: Traversing speed of the
tool in mm/min while milling.
Example: NC block
N25 G262 Q335=10 Q239=+1.5 Q201=-20
Q335=0 Q253=750 Q351=+1 Q200=2
Q203=+30 Q204=50 Q207=500 *