Circle Polar - Siemens SINUMERIK Series Operating Manual

Programming technological functions (cycles)
10.7 Additional cycles and functions in ShopMill
Parameter
L
α
F
Radius compensation
10.7.14

Circle polar

A circle in the polar coordinate system is defined by an angle (α). The angle refers to the X
axis.
The tool moves from its actual position on a circular path to the programmed end point (angle)
at the machining feedrate. The radius corresponds to the distance from the actual tool position
to the defined pole, i.e. the circle starting and end point positions are at the same distance
from the defined pole.
The 1st arc in polar coordinates entered after the pole must be programmed with an absolute
angle. You can program any additional straight lines or circles with incremental coordinates.
Procedure
668
Description
Distance to the pole, end point
Polar angle to the pole, end point (abs) or
change in polar angle to the pole, end point (inc)
Machining feedrate
Input defining which side of the contour the cutter travels in the programmed direc‐
tion:
Radius compensation to left of contour
Radius compensation to right of contour
Radius compensation off
The set radius compensation remains as previously set
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 "Polar" and "Circle polar" softkeys.
Operating Manual, 08/2018, 6FC5398-7CP41-0BA0
Unit
mm
Degrees
mm/rev
mm/min
mm/tooth
Milling