Circular Interpolation Via Intermediate Point: Cip - Siemens SINUMERIK 808D User Manual

11.4.2

Circular interpolation via intermediate point: CIP

Fu n ctionality
If you know th ree contour points of the circle, instead of center point or radius or aperture angle, then it is advantageous to
use the CIP function.
The direction of the circle results here from the position of the intermediate point (between starting and end points). The
intermediate point is written according to the following axis assignment:
I1=... for the X axis,
J1=... for the Y axis,
K1=... for the Z axis.
CIP remains active until canceled by another instruction from this G group (G0, G1, G2, ...).
N o te
The configured dimensional data G90 or G91 applies to the end point a n d the intermediate point.
See the following illustration for circle with end point and intermediate point specification using the example of G90:
Programming example
N5 G90 X30 Y40
N10 CIP X50 Y40 I1=40 J1=45
98
;Starting point circle for N10
; End point and intermediate point
Programming and Operating Manual (Milling)
6FC5398-4DP10-0BA6, 09/2017