User's Manual

PMAC User Manual
Writing Programs for PMAC 191
Line
Line
Programmed
Path
Tool Center
Path
Line to Line
Line
Line
Line
Programmed
Path
Tool Center
Path
Line
Arc
Arc
Line to Arc
Arc
Arc
Programmed
Path
Line
Tool Center
Path
Arc to Line
Line
Programmed
Path
Tool Center
Path
Arc
Arc
Arc
Arc
A
rc to Arc
Cutter Compensation Change of Direction
CC2
CC1
CC2
CC1
CC2
CC1
CC1
CC2
Figure 45 Cutter Compensation Change of Direction
However, if there is no intersection between the two compensated move paths, the change is introduced
linearly over the next move.
Programmed
Path
Tool Center
Path
Change Through an Arc
Change Through a Line Change in Reversal
Cutter Compensation Change of Direction – No Intersection
Line
Line
Arc
Arc
Arc
Arc
Programmed
Path
Tool Center
Path
Change Through a Line
Line
Line
Line
Line
Line
Line
Programmed
Path
Tool Center
Path
Line
Line
Line
Line
Arc
Spiral
r
CC2
CC1
Programmed Path
Line
Tool Center Path
Line
CC2
CC1
CC2
CC1
CC2
CC1
Figure 46 Cutter Compensation Change of Direction – No Intersection
How PMAC Removes Compensation
PMAC gradually removes compensation over the next LINEAR or CIRCLE-mode move following the
CC0 command that turns off compensation. This lead-out move starts at a point one cutter radius away
from the intersection of the lead-in move and the first fully compensated move, with the line from the
programmed point to this compensated endpoint being perpendicular to the path of the first fully
compensated move at the intersection.