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G43.4 Tool center point control type 1
Fanuc G-code · Mill
Five axis function. Keeps the tool tip on the programmed X Y Z point while the rotary axes move. The program gives the rotary axis angles directly.
Verify on your machine. This entry could not be fully checked against the maker manual. Check your machine manual before you run it.
Format
G43.4 H [X Y Z A B C]
Addresses
| Address | What it does |
|---|---|
H | Tool length offset number |
X Y Z | Tool tip position |
A B C | Rotary axis angles |
How it works
Modal, group 08. Cancel with G49.
Example program
G90 G54 G00 A0. C0. (ROTARIES TO ZERO)
G43.4 H10 X0. Y0. Z1. (TCP ON)
G01 Z.1 F50. (APPROACH)
X1. A15. C30. F40. (TIP MOVES STRAIGHT WHILE ROTARIES TURN)
…
G43.4 H10 X0. Y0. Z1. (TCP ON)
G01 Z.1 F50. (APPROACH)
X1. A15. C30. F40. (TIP MOVES STRAIGHT WHILE ROTARIES TURN)
…
The full 5-line example is in the app. Example is in inch. Check offsets and clearances first.
Watch out for
- This is an option for 5 axis machines. Machine kinematics must be set up by the builder.
- Use CAM post output made for your exact machine. Hand programming is error prone.
- Cancel with G49 before any tool change.
Related codes
G43.4 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Mazak (EIA) | Tool center point control, type 1 |
| Mitsubishi M70 M80 | Tool center point control type 1 |
| Centroid CNC12 Acorn | Rotary tool center point |
| Hurco WinMax (NC) | 5 axis linear interpolation mode |
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