Wuhan Huazhong Numerical Control Co., Ltd HNC-18iT v4.0 Programming Manual page 79

7.2 Tool Radius
7.2 7.2 7.2 Tool Tool Tool Radius Radius Compensation Radius
Programming
Programming Programming Programming
G 40
⎧ ⎫
G 00
⎧ ⎫
⎪ ⎪
X _ Z_
⎨ G 41 ⎬ ⎨ ⎬
G 01
⎩ ⎭
⎪ ⎩ ⎪ ⎭
G 42
Explanation Explanation of of of of the Explanation the the
Explanation the parameters
G40 Deactivate tool radius compensation
G41 Activate tool radius compensation, tool operates in machining operation to the left
of the contour.
G42 Activate tool radius compensation, tool operates in machining operation to the
right of the contour.
X, Z Coordinate values of the end point. It is the point where the tool radius
compensation is activated or deactivated.
Function
Function Function Function
These commands can control the tool radius compensation to get the equidistant tool paths
for different tools.
Note: Note: Note: Note:
G40, G41, and G42 must be used with G00 or G01.
1)
The tool radius compensation value is assigned in T code.
2)
Compensation
Compensation Compensation (G40,
parameters parameters
parameters
G42
G41
Figure 7.1 Tool Radius Compensation
(G40,
(G40, G41, (G40,
75
7. Tool Function
G41, G42)
G41, G42) G41, G42) G42)