With BLK FORM ROTATION you define a rotationally symmetric workpiece blank with a definable contour. You define the contour in a subprogram or separate NC program.
Application
Description of function

In the workpiece blank definition you refer to the contour description.
In the contour description, you program a half-section of the contour around the tool axis as the rotational axis.
- The following conditions apply to the contour description:
- Only coordinates of the main axis and tool axis
- Starting point defined in both axes
- Closed contour
- Only positive values in the main axis
- Positive and negative values are possible in the tool axis
The workpiece preset is in the center of the blank in the working plane. You define the coordinates of the blank contour relative to the workpiece preset. You can also define an oversize.
Input
NC programs contained in this User's Manual are suggestions for solutions. The NC programs or individual NC blocks must be adapted before being used on a machine.
- Change the following contents as needed:
- Tools
- Cutting parameters
- Feed rates
- Clearance height or safe position
- Machine-specific positions, e.g. with M91
- Paths of program calls
Some NC programs depend on the machine kinematics. Adapt these NC programs to your machine kinematics before the first test run.
In addition, test the NC programs using the simulation before the actual program run.
With a program test you determine whether the NC program can be used with the available software options, the active machine kinematics and the current machine configuration.
1 BLK FORM ROTATION Z DIM_R LBL "BLANK" | ; Rotationally symmetric blank |
* - ... | |
11 LBL "BLANK" | ; Subprogram start |
12 L X+0 Z+0 | ; Beginning of contour |
13 L X+50 | ; Coordinates in positive direction of main axis |
14 L Z+50 | |
15 L X+30 | |
16 L Z+70 | |
17 L X+0 | |
18 L Z+0 | ; End of contour |
19 LBL 0 | ; End of subprogram |
The NC function includes the following syntax elements:
Syntax element | Meaning |
---|---|
BLK FORM ROTATION | Syntax initiator for rotationally symmetric workpiece blank |
Z | Active tool axis Other possibilities might be available, depending on the machine. |
DIM_R or DIM_D | Interpret values in the main axes in the contour description as radius or diameter |
LBL or FILE | Name or number of the contour subprogram or path of the separate NC program |
Notes
- If you program the contour description with incremental values, the control interprets the values as radii regardless of whether DIM_R or DIM_D is selected.
- With CAD Import (software option 42), you can load contours from CAD files and save them in subprograms or separate NC programs.
Opening CAD Files with the CAD-Viewer