HEIDENHAIN TNC 410 ISO Programming User Manual
Page 216

190
8 Programming: Cycles
8.3 Cy
cles f
o
r Dr
illing
, T
a
p
p
ing
and
Th
read Millin
g
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
Disengaging direction
(0/1/2/3/4) Q214: Determine
the direction in which the TNC retracts the tool at the 
hole bottom (after spindle orientation). 
0: Do not retract tool
1: Retract tool in the negative reference axis direction
2: Retract tool in the negative secondary axis direction
3: Retract tool in the positive reference axis direction
4: Retract tool in the positive secondary axis direction
Not available with TNC 410:
U
U
U
U
Angle for spindle orientation
Q336 (absolute
value): Angle at which the TNC positions the tool 
before retracting it.
Danger of collision
Select a disengaging direction in which the tool moves 
away from the edge of the hole.
Check the position of the tool tip when you program a 
spindle orientation to the angle that you enter in Q336 (for 
example, in the Positioning with Manual Data Input mode 
of operation). Set the angle so that the tool tip is parallel to 
a coordinate axis.
