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M23 Back spindle forward (Citizen)
Swiss (Citizen Star) M-code · Lathe
Starts the back spindle forward. Give the speed with S2=.
Verify on your machine. This entry could not be fully checked against the maker manual. Check your machine manual before you run it.
Format
M23 S2=
Addresses
| Address | What it does |
|---|---|
S2= | Back spindle speed |
How it works
Modal, back spindle group.
Example program
($2 BACK PATH)
M23 S2=3000 (BACK SPINDLE FORWARD)
G00 X0. Z-.05 T3100 (BACK DRILL)
M23 S2=3000 (BACK SPINDLE FORWARD)
G00 X0. Z-.05 T3100 (BACK DRILL)
Example is in inch. Check offsets and clearances first.
Watch out for
- The back spindle faces the main spindle. To match main M3 for pick-off, Citizen programs often use M24.
Machine builders set many M codes, and they change by model and options. Check the M code list for your machine.
Related codes
M23 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Fanuc | Thread chamfer on |
| Haas NGC | Chamfer out of thread on |
| Doosan (Fanuc) | Program start check |
| DMG Mori MAPPS (Fanuc) | External output |
| Mazak (EIA) | Robot service call |
| Okuma OSP | Chamfer on |
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