Chapter 9 NC Control Function
This function is a one-shot command so it is valid in the corresponding command only.
If the G09 command is used for the simple feed command like "G01", the „Inposition Check‟ is performed at the
target position to traverse.
If machining such as cutting is performed using this function, fine stopping phenomenon occurs at the connecting
intersection point of the curved surfaces, resulting in some disadvantages; bad condition of the machined surface,
significant wear of the tool, and long machining time.
G90
G00 X0. Y0. Z0
G09 G01 X100. Y100. F5000 % Linear feeding through the Exact Stop
X200. Y250. % Linear feeding
G10
The above program is the example of using the Exact Stop (G09) command for linear feeding. The G09 command
in the above program is a one-shot command so "X200. Y250." command is not affected by the G09 command.
7) Selecting the plane for circular interpolation (G17, G18, G19)
(G90, G91) G17 (G02, G03) X_ Y_ (I_ J_ / R_) F_
(G90, G91) G18 (G02, G03) X_ Z_ (I_ K_ / R_) F_
(G90, G91) G19 (G02, G03) Y_ Z_ (J_ K_ / R_) F
G90, G91: Absolute/Incremental command
G17: X-Y plane
G18: Z-X plane
G19: Y-Z plane
G02, G03: clockwise, counter clockwise circular interpolation
X_ Y_ Z_: Target position to traverse
I_ J_ K_/R_: Reference point or radius of an arc
F_: Feed rate
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