Creating A New Contour - Siemens SINUMERIK 840D sl Operating Manual

4.8.3

Creating a new contour

Function
For each contour that you want to mill, you must create a new contour.
The contours are stored at the end of the program.
The first step in creating a contour is to specify a starting point. The cycle automatically
defines the end of the contour.
If you alter the tool axis, the cycle will automatically adjust the associated starting point axes.
You can enter any additional commands (up to 40 characters) in G code format for the
starting point.
Additional commands
You can program feedrates and M commands, for example, using additional G code
commands. However, make sure that the additional commands do not collide with the
generated G code of the contour. Therefore, do not use any G code commands of group 1
(G0, G1, G2, G3), no coordinates in the plane and no G code commands that have to be
programmed in a separate block.
If you want to create a contour that is similar to an existing contour, you can copy the
existing one, rename it and just alter selected contour elements. However, if you want to use
an identical contour at another place in the program, you must not rename the copy.
Changes to the one contour will then automatically be applied to the other contour with the
same name.
Procedure
HMI sl Turning
Operating Manual, 01/2008, 6FC5398-7AP10-0BA0
1. Select the part program to be edited in the "Program manager"
operating area.
2. Press the "Open" softkey or the "INPUT" key to edit the part program
in the editor.
3. Press the "Milling" softkey.
4. Press the "Contour milling" and "New contour" softkeys.
The "New Contour" input window opens.
5. Enter a contour name.
Programming a cycle
4.8 Contour milling
253