Hi all,
I am looking for community's input how to deal with the G98 (return to initial plane) and G99 (return to R plane) mode for fixed drilling cycles.
The only way I know how to handle G98/G99 is via postprocessor logic.
The question is what values of NC parameters are you using to indicate G98 or G99 output to postprocessor?
Here is a simplistic CL snippet:
case 1:
SPINDL / RPM, 2000.000000, CLW
RAPID
GOTO / 5.0000000000, 4.4304000000, 4.0000000000
CYCLE / DRILL, DEPTH, 1.000000, IPM, 10.000000, CLEAR, 2.000000, RAPTO,$
0.500000
GOTO / 5.0000000000, 4.4304000000, 0.0000000000
CYCLE / OFF
case 2:
RAPID
GOTO / 5.0000000000, 4.4304000000, 4.0000000000
CYCLE / DRILL, DEPTH, 1.000000, IPM, 10.000000, CLEAR, 2.000000, RAPTO,$
0.500000, RETURN, 1.000000
GOTO / 5.0000000000, 4.4304000000, 0.0000000000
CYCLE / OFF
Our postprocessor logic is:
-if there was (RETURN, number) minor word then it's R value definition and G99 is active (case #2) and CLEAR minor word value is ignored.
-if there was (CLEAR, number) minor word only, then it's R value definition and G98 is active (case #1).
The problem with this approach that it is arbitrary and somebody else could have a totally different way to handle CL data...
Thanks in advance.
Feliks.
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