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M151 Unwind C axis
Centroid CNC12 Acorn M-code · Lathe
Resets the C axis position to less than one turn, under 360 degrees.
Format
M151
Addresses
| Address | What it does |
|---|---|
none | No words |
How it works
One shot.
Example program
M51 ; C AXIS ON
M151 ; UNWIND C
G0 C0 ; C TO ZERO
M151 ; UNWIND C
G0 C0 ; C TO ZERO
Example is in inch. Check offsets and clearances first.
Watch out for
- Use it after M51 so C does not spin many turns back to zero.
Machine builders set many M codes, and they change by model and options. Check the M code list for your machine.
Related codes
M151 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Doosan (Fanuc) | Atc changer start flag |
| Mazak (EIA) | Milling spindle through air blow ON (Only for turning tools) |
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