CNC Machinist Calculator UltraG44 Tool length compensation negative
Fadal G-code · Mill
Subtracts the tool length offset from Z. Rarely used.
Format
G44 H Z
Addresses
| Address | What it does |
|---|---|
H | Tool length offset number |
How it works
Modal until G49.
Example program
N1 G0 G40 G49 G80 G90 G17 (FORMAT 2 SAFE START)
N2 T2 M6 (1-4 DRILL)
N3 G0 G90 G54 X1. Y1. S2500 M3
N4 G44 H2 Z.1 (NEGATIVE LENGTH OFFSET)
N2 T2 M6 (1-4 DRILL)
N3 G0 G90 G54 X1. Y1. S2500 M3
N4 G44 H2 Z.1 (NEGATIVE LENGTH OFFSET)
Example is in inch. Check offsets and clearances first.
Watch out for
- If you use G43 offsets, G44 drives the tool the wrong way. Most shops never use it.
Related codes
G44 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Fanuc | Tool length compensation minus |
| Haas NGC | Tool length compensation minus |
| Mitsubishi M70 M80 | Tool length comp minus |
| Brother Speedio | Tool length offset minus |
| Fagor 8055 8065 | Tool length compensation cancel |
| Mach3 Mach4 | Tool length offset minus |
| Centroid CNC12 Acorn | Tool length compensation minus |
| Hurco WinMax (NC) | Tool length offset minus |
Every G-code for Fadal in your pocket. The app has the full example programs, search by number or shop word, a line decoder and calculators for tapping, threading and drilling.
Open G44 in the app All Fadal G-codes