C–AXIS FAPT FUNCTION
First cutting point and approach point
The cutting point always starts from a point where the tool is offset normal
to the starting element when the right and left of an element is cut.
Fig. 5.4 (c)
Bit 0 of MTF 1305 is used to switch between NC data created with
consideration for cutter compensation at the FAPT side, and NC data
created using the cutter compensation function at the NC side.
7 6 5 4 3 2 1 0
0 : Performed by FAPT (G40/41/42 not output)
1 : Performed by NC (G40/41/42 output)
1) MTF 1305 bit 0 = 0:
NC data with cutter compensation at the FAPT is output when cutting
on the left side of the defined figure as well as when cutting on the right
side. Cutter is not considered when cutting on the element.