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CYCLE89 Boring with dwell, feed out
Siemens 840D 828D G-code · Mill
Feeds to depth, dwells, then feeds out at the same feed. Used for blind bores with a clean bottom.
Format
CYCLE89(RTP, RFP, SDIS, DP, DPR, DTB)
Addresses
| Address | What it does |
|---|---|
RTP | Retract plane, absolute |
RFP | Reference plane, absolute, usually the part top |
SDIS | Safety distance above the reference plane, no sign |
DP | Final depth, absolute |
DPR | Final depth relative to the reference plane, no sign. Program DP or DPR and leave the other empty. |
DTB | Dwell at depth in seconds |
How it works
Non modal. It runs once at the current position. Use MCALL to repeat it at every following position.
Example program
T9 D1 ; BORING BAR
M6
G0 X50 Y50 F80 S900 M3
Z50
…
M6
G0 X50 Y50 F80 S900 M3
Z50
…
The full 6-line example is in the app. Example is in inch. Check offsets and clearances first.
Watch out for
- Program F, S and the spindle direction before the call. The cycle uses the active values.
- Feeding out at cutting feed doubles the time in the bore. Use CYCLE86 if the exit mark matters.
Related codes
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Open CYCLE89 in the app All Siemens 840D 828D G-codes