Parting-off the Part

In the following section of the tutorial we will generate a NC program for parting-off the part. In order to select the Cutoff operation, the below described steps must be performed.

Create a Cutoff Toolpath

Ensure the file type (NC Format) for our Cutoff example program is ISO Turning.

Then select the feature Cutoff Turning by clicking on the Cutoff icon in the Turning Operations toolbar.

This will open the Cutoff Turning pane to the left of the drawing area. Now insert the values shown in the dialog below.

  • Comment: This comment will be shown in the final NC Program. It is always good to include a comment in order to distinguish the various operations in the final program.
  • Distance Z: The position at which the part will be cut perpendicularly to the Z-axis.
  • Start Depth X: The depth at which the actual operation is started.
  • End Depth X: The final depth of the operation.

The Cutoff is defined by the above parameters, after the entry of which the screen will look something like the one shown below.

The three values entered are shown as a vertical line on the drawing.

Click on the button Parameters in the Cutoff Turning pane to open the parameters dialog. Enter the following values into the parameter dialogs shown below.

Cutting Tab

Configures cutting parameters for the operation.

Corner Geometry Tab

Configures the geometry of the corner - sharp, round, chamfer.

Click on OK to use the values and close the dialog.

Try experimenting with the various parameters and see how they change the generated toolpath.

Exporting the Toolpath and Backplot in the Editor

Click on Export Clipboard in order to generate the actual program. The program is now in the computer's clipboard and is ready to be inserted into the CNC program.

Change the window to the NC program and move the cursor to the very end by pressing Ctrl+End. Insert the text from the clipboard, either by pressing Ctrl+V, or selecting the icon Paste from the Edit toolbar in the Editor tab.

Now the NC program should look like the following screen.

To verify the generated toolpath, we must simulate it using the integrated Graphical Backplot.

To open the backplot window, click on the Backplot tab at the top of the Ribbon and then on the Backplot Window icon in the File toolbar.

Now a window like the one below will appear.

Now save the NC program as CNC-Calc Turning Tutorial 2.NC.