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Chapter 3 G Commands
61
Ⅰ
Programming
Command specification:
G05(G05.1) is modal;
I: incremental coordinate value(X) (radius value, direction) of the middle point where
the circular passes corresponding to the starting point, range: ±99999999× least
input increment;
K: incremental coordinate value(Z, direction) of the middle point where the circular
passes corresponding to the starting point, range: ±99999999× least input
increment;
X, U, Z, W, R, I, K range is referred to Table 1-2 of Section 1.4.1, unit: mm/inch.
Fig. 3-11 G05 code Middle point Fig.3-12 G05.1 code Middle point
Notes:
1) Middle point: any one point except for the starting point and end point on the arc;
2) The system alarms when the three points are in the same line;
3) I=0 when it is omitted, K=0 when it is omitted; the system alarm when they are omitted
simultaneously;
4) The meanings of I, K I are similar to their displacement values of the circle center coordinates
corresponding to starting point ones in G02/G03;
5) G05 does not execute the whole circle machining;
Example:
(machining semi-circle)
X
Z
(10,20)
(10,10)
(20,15)
K=5
I=5
(10,10)
(10,20)
Z
X
Fig.3-13 G05 Fig.3-14 G05.1
Program 1 Program 2
G00 X10 Z20; G00 X10 Z20;
G5.1 X10 Z10 I5 K-5 F150; G05.1 X10 Z10 I20 K15;
