Rockwell Automation 8520-MUM 9/Series CNC Mill Operation and Programming Manual Documentation Set - Manual (Page 428)

Using QuickPath Plus
Chapter 15
15-10
Circular to Linear Blocks
When the coordinates of the intersection of a circular path into a linear
path are not known, use the following format. Note that G13 or G13.1
must be programmed in the first of the two blocks. These blocks must be
programmed in absolute.
Format:
G13 G02 I__ J__ ; or G13 G02 R__ ;
G01 ,A__ X__ Y__ ; G01 A__ X__ Y__ ;
Important: J, and K values are the normal integrand values when using
this format (measured from start point of arc to arc center). These are
discussed in chapter 16.
Example 15.5
Arc Into Line Without Programming Intersection Point
G00X0.Y0;
G13G03I4J10F100;
G01,A0X20Y10;
M30;
Figure 15.6
Results of Example 15.5
Control generates
intersection Y
X
10
8
6
4
2
20 18 16 14 12 10 8
2
4
6
Important: R may not be programmed to specify the arc radius for linear
to circular block combinations unless the two tool paths are tangent.