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CYCLE82 Drilling with dwell at depth
Siemens 840D 828D G-code · Mill
Like CYCLE81, with a dwell at the bottom. Used for counterbores and spot facing where a clean bottom is needed.
Format
CYCLE82(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
T4 D1 ; COUNTERBORE
M6
G0 X30 Y30 F120 S800 M3 ; OVER HOLE
Z50
…
M6
G0 X30 Y30 F120 S800 M3 ; OVER HOLE
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.
- A short dwell is enough. Long dwells rub and harden the hole bottom.
Related codes
CYCLE81 · MCALL
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