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Siemens SINUMERIK 808D ADVANCED - Circle with Tangential Transition: CT

Siemens SINUMERIK 808D ADVANCED
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Programming and Operating Manual (Milling)
6FC5398-4DP10-0BA1, 01/2014
77
See the following illustration for circle with end point and intermediate point specification using the example of G90:
Programming example
N5 G90 X30 Y40
;Starting point circle for N10
N10 CIP X50 Y40 I1=40 J1=45
; End point and intermediate point
8.4.3
Circle with tangential transition: CT
Functionality
With CT and the programmed end point in the current plane G17 through G19, a circle is generated which is connected
tangentially to the previous path segment (circle or straight line) in this plane.
This defines the radius and center point of the circle from the geometric relationships of the previous path section and the
programmed circle end point.
See the following illustration for circle with tangential transition to the previous path section:
Programming example
N10 G1 X20 F300
; Straight line
N20 CT X... Y...
; Circle with tangential connection

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