Polar Coordinates - Siemens sinumerik 840D sl Operating Manual

Programming technology functions (cycles)
8.7 Further cycles and functions ShopTurn
8.7.14

Polar coordinates

If a workpiece has been dimensioned from a central point (pole) with radius and angles, you
will find it helpful to program these dimensions as polar coordinates.
Before you program a straight line or circle in polar coordinates, you must define the pole,
i.e. the reference point, of the polar coordinate system.
Procedure
Parameters
Y
Z
Y
Z
X
Y
448
1. The ShopTurn program to be processed 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 "Pole" softkeys.
Description
Machining plane peripheral surface/peripheral surface C
Pole Y (abs)
Pole Z (abs) or pole Z referred to the last programmed position (inc)
Note:
Incremental dimension: The sign is also evaluated.
Machining plane, peripheral surface Y
Pole Y (abs)
Pole Z (abs) or pole Z referred to the last programmed position (inc)
Note:
Incremental dimension: The sign is also evaluated.
Machining plane face/face C
Pole X ∅ (abs)
Pole Y (abs) or pole Y referred to the last programmed position (inc)
Note:
Incremental dimension: The sign is also evaluated.
Operating Manual, 07/2010, 6FC5398-8CP40-0BA0
Unit
mm
mm
mm
mm
mm
mm
Turning