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CIP Circle through an intermediate point
Siemens 840D 828D G-code · Mill and lathe
Cuts an arc set by its end point and one point on the arc. The direction comes from the points, so no G2 or G3 is needed. Also works for arcs in space that do not lie in a main plane.
Format
CIP X Y Z I1= J1= K1= F
Addresses
| Address | What it does |
|---|---|
X Y Z | Arc end point |
I1= J1= K1= | Intermediate point on the arc in X, Y and Z. Absolute or incremental per G90 or G91. |
F | Feed rate |
How it works
Modal, G group 1 (motion).
Example program
G17 G90 G54
G0 X0 Y0 Z2 ; START POINT
G1 Z-1 F100 ; FEED TO DEPTH
CIP X40 Y0 I1=20 J1=20 F250 ; HALF CIRCLE THROUGH X20 Y20
…
G0 X0 Y0 Z2 ; START POINT
G1 Z-1 F100 ; FEED TO DEPTH
CIP X40 Y0 I1=20 J1=20 F250 ; HALF CIRCLE THROUGH X20 Y20
…
The full 5-line example is in the app. Example is in inch. Check offsets and clearances first.
Watch out for
- Start point, intermediate point and end point must not lie on one straight line.
- With G91 the intermediate point is incremental from the arc start point.
- CIP cannot cut a full circle.
Related codes
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