Predrill, Pocket Mill, Figures On Face" Unit - HEIDENHAIN MANUALPLUS 620 User Manual

"Predrill, pocket mill, figures on face" unit

The unit determines the hole position and machines the hole. The
subsequent milling cycle obtains the hole position from the reference
stored in NF.
Unit name: DRILL_STI_TASC / Cycles: G845 A1 (see page 338); G71
(see page 293)
Figure form
Q Type of figure
0: Full circle
1: Linear slot
2: Circular slot
3: Triangle
4: Rectangle, square
5: Polygon
QN Number of polygon corners—only with Q=5 (polygon)
X1 Diameter of figure center
C1 Angle of figure center
Z1 Milling top edge
P2 Depth of figure
L Edge length / width across flats
L>0: Edge length
L<0: Width across flats (inside diameter) for polygon
B Rectangle width
RE Rounding radius
A Angle to X axis
Q2 Rotational direction of slot—only if Q=2 (circular slot)
cw: In clockwise direction
ccw: In counterclockwise direction
W Angle of slot end point—only if Q=2 (circular slot)
Program only the parameters relevant to the selected
figure type.
HEIDENHAIN MANUALplus 620
Access to the technology database:
Machining operation: Drilling
Affected parameters: F, S
85