G43.4

SYNTAX

G43.4 H_ ; With tool length number H, keeps the tool tip at the programmed point during rotary axis motion.

WHAT CHANGES

The control automatically compensates the linear axes during rotary motion. The program is now written in part coordinates; the machine kinematics take over the compensation.

CAM EFFECT

The post produces output in the part coordinate system and gives rotary angles separately. With TCP off, the post must convert to machine coordinates.

POST EFFECT

TCP activation/deactivation blocks in the post must match the retract logic. Otherwise unexpected rotary motion occurs during retract.

COMMON MISTAKES

Using G53 with TCP active, defining the retract plane in machine coordinates, H number not matching the tool number.