Straight And Circular Machining - Siemens sinumerik 840D sl Operating Manual

8.7.9

Straight and circular machining

If you want to perform simple, i.e. straight or circular path movements or machining without
defining a complete contour, you can use the functions "Straight" or "Circle" respectively.
General sequence
To program simple machining operations, proceed as follows:
● Specify the tool and the spindle speed
● Program the machining operations
Machining options
The following machining options are available:
● Straight line
● Circle with known center point
● Circle with known radius
● Straight line with polar coordinates
● Circle with polar coordinates
If you want to program a straight line or a circle using polar coordinates, you must define the
pole first.
If you retract the tool to the retraction area defined in the program header using either
straight or circular path motion, then you must carefully ensure that a collision cannot occur
as a result of the normal retraction logic.
To be on the safe side, you should also move the tool back out of the retraction area again.
Turning
Operating Manual, 07/2010, 6FC5398-8CP40-0BA0
CAUTION
Programming technology functions (cycles)
8.7 Further cycles and functions ShopTurn
439