CNC Machinist Calculator UltraHome › G-codes › Mitsubishi M70 M80 › G90
G90 Absolute programming / Longitudinal cutting fixed cycle
Mitsubishi M70 M80 G-code · Mill, Lathe
On mills: Absolute programming
Positions are measured from the active work zero.
Format
G90
How it works
Modal, group 03.
Example program
G20 G17 G40 G49 G80 G90 (SAFE START)
G54 G00 X1. Y1. (ABSOLUTE MOVE)
Z.1 (ABSOLUTE Z)
G54 G00 X1. Y1. (ABSOLUTE MOVE)
Z.1 (ABSOLUTE Z)
Example is in inch. Check offsets and clearances first.
Watch out for
- Put G90 in the safe start line. Most programs run fully in G90.
On lathes: Longitudinal cutting fixed cycle
In G code list 2, G90 is a one pass turning box cycle, not absolute mode. Other lists use G77.
Format
G90 X Z [R] F
Addresses
| Address | What it does |
|---|---|
X Z | End point of the cut |
R | Taper amount on radius |
F | Feed |
How it works
Modal, group 01.
Example program
G00 X2.1 Z.1 (START POINT)
G90 X1.9 Z-1. F.01 (PASS 1)
X1.8 (PASS 2)
G00 X3. Z1. (CLEAR)
G90 X1.9 Z-1. F.01 (PASS 1)
X1.8 (PASS 2)
G00 X3. Z1. (CLEAR)
Example is in inch. Check offsets and clearances first.
Watch out for
- In list 2, G90 is a cycle. Fanuc mill habits of G90 for absolute cause errors here.
- Each new X line runs another pass.
Related codes
G90 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Fanuc | Absolute programming |
| Haas NGC | Absolute positioning |
| Mazak (EIA) | Absolute programming |
| Okuma OSP | Absolute programming |
| Brother Speedio | Absolute programming |
| Siemens 840D 828D | Absolute dimensions |
| Heidenhain TNC (ISO) | Absolute dimensions |
| Fagor 8055 8065 | Absolute programming |
| LinuxCNC Tormach | Absolute distance mode |
| Mach3 Mach4 | Absolute mode |
| Centroid CNC12 Acorn | Absolute positioning |
| Hurco WinMax (NC) | Absolute mode |
| Fadal | Absolute positioning |
| Swiss (Citizen Star) | OD turning cycle |
Every G-code for Mitsubishi M70 M80 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 G90 in the app All Mitsubishi M70 M80 G-codes