Hey guys,
I ran a simple program using G71 canned cycle on a TL-1, and for some reason when I was done the diameter of the part was 40 thou undersized. Instead of 1.02" it was 0.980". All other dimensions were fine.
Here is the section of relevant code. I am focusing on the sign of the U (finish allowance) parameter, but after double checking I believe that positive is the correct sign. Not sure what is causing the undersize condition.
Any thoughts are much appreciated.
G54 G00 X1.6 Z0.1 (START POS)
G71 P10 Q20 U0.02 W0.01 D0.03 F0.01
N10 G41 G00 X0.8572 Z0.1 (BEG OF PROFILE)
G01 Z0.
Z-0.0714 X1.
Z-3.45
N20 G40 G01 X1.5 (END OF PROFILE)
I ran a simple program using G71 canned cycle on a TL-1, and for some reason when I was done the diameter of the part was 40 thou undersized. Instead of 1.02" it was 0.980". All other dimensions were fine.
Here is the section of relevant code. I am focusing on the sign of the U (finish allowance) parameter, but after double checking I believe that positive is the correct sign. Not sure what is causing the undersize condition.
Any thoughts are much appreciated.
G54 G00 X1.6 Z0.1 (START POS)
G71 P10 Q20 U0.02 W0.01 D0.03 F0.01
N10 G41 G00 X0.8572 Z0.1 (BEG OF PROFILE)
G01 Z0.
Z-0.0714 X1.
Z-3.45
N20 G40 G01 X1.5 (END OF PROFILE)
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