Programming A Circle With Known Center Point - Siemens SINUMERIK 840D sl Operating Manual

Procedure
Parameter
X
Y
Z
F
Radius compensation
10.7.9

Programming a circle with known center point

The tool travels along a circular path from its actual position to the programmed circle end
point. You must know the position of the circle center point. The control calculates the radius
of the circle/arc on the basis of your interpolation parameter settings.
The circle can only be traversed at machining feedrate. You must program a tool before the
circle can be traversed.
Milling
Operating Manual, 05/2017, A5E40868956
1. The ShopMill program to be edited has been created and you are in the
editor.
2. Press the menu forward key and the "Straight Circle" softkey.
3. Press the "Straight line" softkey.
4. Press the "Rapid traverse" softkey to enter the feedrate in rapid traverse.
Description
Target position X (abs) or target position X referred to the last programmed position
(inc)
Target position Y (abs) or target position Y referred to the last programmed position
(inc)
Target position Z (abs) or target position Z referred to the last programmed position
(inc)
Note
Incremental dimensions: The sign is also evaluated.
Machining feedrate
Input defining which side of the contour the cutter travels in the programmed direc‐
tion:
Radius compensation to right of contour
Radius compensation to left of contour
Radius compensation off
The previously programmed setting for radius compensation is used.
Programming technological functions (cycles)
10.7 Additional cycles and functions in ShopMill
Unit
mm
mm
mm
mm/rev
mm/min
mm/tooth
609