1. G Function Description
G17, G18, and G19 can set axis of drilling, list as below:
G Code
Plane
Axis of drilling
G17
X-Y plane
Z axis
G18
Z-X plane
Y axis
G19
Y-Z plane
X axis
Return to R point:
When tool perform to the bottom of the hole, the tool can return to
initial position or R point. And that is decided by G98/G99, G98 is back to
initial position, G99 is back to R point.
Number of repeats K:
If we want to perform many holes in the same distance, we can specify
number of repeats K, range of K 09999, but the first hole need to use
increment mode(G91) to specify, or it will repeat drilling in the same place.
When K=0, drilling data will be set, X, Y movement command cannot
be executed in block, drilling cannot be execute too.
Cancel cycle:
G80 or G code of 01 group(G00/G01/G02/G03…etc.) can cancel
cycle.
Increment (G91)/ absolute(G90) mode:
Absolute
Increment
Point R
+R
-Z
-R
Point R
-Z
Workpiece
Workpiece
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