1. Switch to the text editor window.
2. Add these lines after the last line of the LINEAR section:
3. Save your changes to the test.ppr file.
4. Switch to the Camand window. The Post Processing form should still
be displayed. (If not, select NC_Utilities—Post.)
5. Select the Execute icon.
6. Type y in response to the prompt, and then press the Enter key. The
test.nc file is overwritten.
7. Select the LIST Toolpath File icon to view the new toolpath file.
When using the APPROX command for arc cuts, APPROX outputs a
linear approximation of the arc based on the chordal value defined in the
ARCLIM statement (which is discussed later in this tutorial) of the INIT
section. While viewing the test.nc file on your screen, you see the arc in
test.nc was linearly approximated using a default chordal value, and the
result is about 20 additional pages of G01 linear cuts.
This is not the most efficient manner for cutting arcs, and most machine
tool controllers are programmed to handle a pre-defined arc cut. By
commenting out the APPROX command, and replacing it with an actual
arc output line, you enable CAMAX Post to convert the arc cut to a single
line of output.
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