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G220 Circular point pattern
Heidenhain TNC (ISO) G-code · Mill
Calls the last defined machining cycle at points on a full or partial circle. Klartext: CYCL DEF 220 POLAR PATTERN.
Verify on your machine. This entry could not be fully checked against the maker manual. Check your machine manual before you run it.
Format
G220 Q216 Q217 Q244 Q245 Q246 Q247 Q241 Q200 Q203 Q204 Q301
Addresses
| Address | What it does |
|---|---|
Q216 Q217 | Center in first and second axis |
Q244 | Pitch circle diameter |
Q245 | Starting angle |
Q247 | Stepping angle |
Q241 | Number of holes |
How it works
Calls the cycle by itself. No G79 is needed.
Example program
N50 G200 DRILLING
Q201=-15 ;DEPTH
N60 G220 POLAR PATTERN
Q216=+50 ;CENTER IN 1ST AXIS
…
Q201=-15 ;DEPTH
N60 G220 POLAR PATTERN
Q216=+50 ;CENTER IN 1ST AXIS
…
The full 9-line example is in the app. Example is in inch. Check offsets and clearances first.
Watch out for
- Define the drilling cycle first, then G220 right after it.
- Q301 sets whether the tool moves at clearance or 2nd clearance between holes.
Related codes
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Open G220 in the app All Heidenhain TNC G-codes