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"Program" operating area 01/2008
6.7 Free contour programming
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©Siemens AG 2008 All rights reserved.
6-288 SINUMERIK 840Di sl/840D sl/840D Operating Manual HMI-Advanced (BAD) - 01/2008 Edition
Contour elements
The following are contour elements:
Starting point
Straight line (planar, longitudinal, inclined)
Circular arc
A pole is a pseudo contour element. Straight lines and circular arcs
can also be defined by polar coordinates in reference to a pole.
Additional information
1. The valid geometry axes in the first channel are determined and
used in the part program.
2. The contour editor uses the last programmed axis position for the
starting point, without allowing for previously valid G functions.
3. You must also specify the side on which the contour allowance
should lie, e.g., "right" or "left".
6.7.1 Programming a contour
Sequence of operations
New contour
New...
OK
Use the "Workpiece" and "Part program" softkeys in the Program
operating area to select an existing program and press the "Input" key
or open a new part program using the “New” softkey, enter a name
and confirm with “OK”. You are now in the ASCII editor.
Contour
Generate
contour
Contour
1 str. line
Contour
2 str. lines
Contour
3 str. lines
The "Contour" softkey displays a vertical softkey bar with the following
options:
The contour calculator is activated to generate a contour chain from
contour elements.
Preparatory cycles are displayed with help displays for creating
straight lines and transition elements, if applicable.
Recompile
You can edit an existing contour by selecting the "Recompile" softkey.
The editor cursor must be positioned inside the contour to do this.
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