Mitsubishi Electric MELDAS C6 Programming Manual page 125

12. Tool Offset Functions
Tool center path
N12
N11
N11G1Xx ;N12G38Yy
11
Changing the compensation direction during tool diameter compensation
The compensation direction is determined by the tool diameter compensation commands (G41,
G42) and compensation amount sign.
Compensation amount
G code
G41
G42
The compensation direction can be changed by changing the compensation command in the
compensation mode without the compensation having to be first canceled. However, no change is
possible in the compensation start block and the following block.
Refer to section 12.3.5 "Precautions for tool diameter compensation" for the movement when the
symbol is changed.
Linear Linear
Tool center path
Program path
G41
r
1
N13
Program path
;N13G38Xx ;N14G38Xx
12 13
Vector hold
sign
Left-hand compensation
Right-hand compensation
Point of intersection
r
G41
r
117
12.3 Tool radius compensation
2
i
r =
2
r
1
N15
N14
Yy ;N15G38Xx IiJjDd ;N16G40Xx
14 14 15 2
Vector change
+
r
G42
r
2
+ j
×r
1
j
j
i
N16
Yy ;
16 16
−
Right-hand compensation
Left-hand compensation
If there is no point of
intersection when the
compensation direction
is changed.