Straight Polar - Siemens SINUMERIK 840D sl Operating Manual

Programming technological functions (cycles)
8.7 Further cycles and functions ShopMill
8.7.13

Straight polar

A straight line in the polar coordinate system is defined by a radius (L) and an angle (α). The
angle refers to the X axis.
The tool moves from its actual position along a straight line to the programmed end point at
the machining feedrate or in rapid traverse.
The 1st straight line 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
Parameter
L
α
F
Radius compensation
470
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 "Straight polar" softkeys.
4. Press the "Rapid traverse" softkey to enter the feedrate in rapid
traverse.
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
direction:
Radius compensation to left of contour
Radius compensation to right of contour
Radius compensation off
The set radius compensation remains as previously set
Operating Manual, 09/2011, 6FC5398-7CP40-2BA0
Unit
mm
Degrees
mm/rev
mm/min
mm/tooth
Milling