HEIDENHAIN CNC Pilot 4290 V7.1 - Manual (Page 123)

HEIDENHAIN CNC PILOT 4290 123
4.2 Pr
ogr
a
mming Not
e
s
Fixed cycles
HEIDENHAIN recommends programming a fixed cycle as follows:
„ Tool change
„ Define the cutting data
„ Position the tool in front of the working area
„ Definition of safety clearance
„ Cycle call
„ Retract the tool
„ Move to tool change position
Typical structure of a fixed cycle
Danger of collision!
Remember when omitting cycle programming steps
during optimization:
„ A special feed rate remains in effect until the next feed
command (for example the finishing feed rate during
recessing cycles).
„ Some cycles traverse diagonally back to the starting
point if you use the standard programming (for example
roughing cycles).
. . .
BEARBEITUNG [MACHINING]
N.. G59 Z.. Zero point shift
N.. G26 S.. Define the speed limit
N.. G14 Q.. Move to tool change position
. . .
N.. T.. Insert the tool
N.. G96 S.. G95 F.. M4 Define the technology data
N.. G0 X.. Z.. Pre-position
N.. G47 P.. Definition of safety clearance
N.. G810 NS.. NE.. Cycle call
N.. G0 X.. Z.. If necessary, retract
N.. G14 Q0 Move to tool change position
. . .