HUST Automation H4CL-T Series Manual page 94

HUST CNC-H4CL-T Manual
Initial Setting for Tool Radius Compensation:
When G41/G42 is executed, the tool moves in a linear motion to the X, Y
coordinate defined in the G41/G42 block at G01 speed. When reaching the
defined X, Y coordinates, the tool-tip deviates at a distance equivalent to the tool
radius. The initial setting of the G41/G42 command is only available in the G00
or G01 linear cutting model. The system sends an error message if it is executed
in the G02 or G03 arc-cutting mode. A simple description of the tool initial setting
function is given below (assuming that the direction of the tool-tip is 0,9):
1. Tool radius compensation is executed when the tool travels from A to B.
Insertion of the radius compensation is complete at B.
N1 G01 X_____ Z_____ F_____ T_____
N2 G41(G42) X_____ Z_____
N3 Z_____
Fig. 3-50 Initial Setting of the Tool Radius Compensation – 1
2. Radius compensation is complete at the start point (B) of arc cutting.
N1 G01 X_____ Z_____ F_____ T_____
N2 G41(G42) X_____ Z_____
N3 G02 X_____ Z_____ I_____ K_____
Direction of tool path
Work
piece
Direction of tool path
Fig. 3-49 G41 and G42 Applications
Program
N3
G42 (right side)
X
G41 (left side)
G42
B
G41
N2
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Z
A