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G43 Tool length compensation plus
Centroid CNC12 Acorn G-code · Mill
Applies the tool length offset from the H number. The H word can be on the G43 line or any earlier line.
Format
G43 H [Z]
Addresses
| Address | What it does |
|---|---|
H | Tool length offset number, H0 is zero length |
Z | Move to this height with the offset |
How it works
Modal. Cancel with G49 or G43 H0.
Example program
G20 G17 G40 G49 G80 G90 ; INCH, SAFE START
T1 M6 ; LOAD TOOL 1, Z GOES HOME FIRST
G54 G0 X0 Y0 ; WORK OFFSET 1
S3000 M3
…
T1 M6 ; LOAD TOOL 1, Z GOES HOME FIRST
G54 G0 X0 Y0 ; WORK OFFSET 1
S3000 M3
…
The full 7-line example is in the app. Example is in inch. Check offsets and clearances first.
Watch out for
- H is modal in CNC12. A later H word changes the active offset right away.
- Make the first Z move after G43 well above the part to prove the offset.
Related codes
G43 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Fanuc | Tool length compensation |
| Haas NGC | Tool length compensation plus |
| Mazak (EIA) | Tool length offset, plus direction |
| Okuma OSP | 3D compensation cancel |
| Mitsubishi M70 M80 | Tool length comp plus |
| Brother Speedio | Tool length offset plus |
| Fagor 8055 8065 | Tool length compensation on |
| LinuxCNC Tormach | Tool length offset on |
| Mach3 Mach4 | Tool length offset |
| Hurco WinMax (NC) | Tool length offset plus |
| Fadal | Tool length compensation positive |
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Open G43 in the app All Centroid CNC12 Acorn G-codes