Radius Shift Mode
From ATTWiki
The Radius Shift Mode is the mode of how the radius shifts. The choices are BEFORE, AFTER, and DURING Feed motion.
BEFORE FEED
No one (that we know of) uses this mode, but we included it as an option just in case someone dreams of a reason to use it. Flexibility is our goal.
AFTER FEED
This prevents all radius shifting until after all FEED motion is complete. This is generally the safest and easiest way to shift. But it is slower than the "During Feed" mode.
DURING FEED
This allows radius shifting simultaneously with the FEED motion. This is the most complex of all radius shifting options. If you can use it, then it shaves time from the cycle.