234 ISO Programming
4.12 Tool-Tip and Cutter Radius Compensation
G41/G42: Switch on TRC/MCRC
G41: Switch on TRC/MCRC—compensation of the tool-tip/cutter
radius to the left of the contour in traverse direction.
G42: Switch on TRC/MCRC—compensation of the tool-tip/cutter
radius to the right of the contour in traverse direction.
Please note:
Program G41/G42 in a separate NC block.
Program a straight line segment (G0/G1) after the block containing
G41/G42.
The TRC/MCRC is taken into account from the next path of traverse.
Example: G40, G41, G42
. . .
N1 T3 G95 F0.25 G96 S200 M3
N2 G0 X0 Z2
N3 G42 [TRC on, to the right of the
contour]
N4 G1 Z0
N5 G1 X20 B-0.5
N6 G1 Z-12
N7 G1 Z-24 A20
N8 G1 X48 B6
N9 G1 Z-52 B8
N10 G1 X80 B4 E0.08
N11 G1 Z-60
N12 G1 X82 G4 [TRC off]
. . .
Parameters
Q Plane (default: 0)
0: TRC on the turning plane (XZ plane)
1: MCRC on the front face (XC plane)
2: MCRC on the lateral surface (ZC plane)
3: MCRC on the front face (XY plane)
4: MCRC on the lateral surface (YZ plane)
H Output (only with TRC)—(default: 0)
0: Intersecting areas which are programmed in directly
successive contour elements are not machined.
1: The complete contour is machined—even if certain areas
are intersecting.
O Feed rate reduction (default: 0)
0: Feed rate reduction is active
1: No feed rate reduction
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