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M42 Select medium low gear range, macro
Centroid CNC12 Acorn M-code · Mill and lathe
Has no default action. If the builder wrote the macro it tells the PLC the medium low spindle gear range is selected.
Verify on your machine. This entry could not be fully checked against the maker manual. Check your machine manual before you run it.
Format
Addresses
| Address | What it does |
|---|---|
none | No words |
How it works
Modal.
Example program
M42 ; MEDIUM LOW GEAR
S800 M3 ; SPINDLE ON
Example is in inch. Check offsets and clearances first.
Watch out for
- Without an mfunc42.mac file this code does nothing. Ask the builder.
Machine builders set many M codes, and they change by model and options. Check the M code list for your machine.
Related codes
M42 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Fanuc | High gear range |
| Haas NGC | Spindle high gear override |
| Okuma OSP | Spindle gear range 2 |
| Hurco WinMax (NC) | Two touch probing |
| Fadal | High range RPM |
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