(I posted this in the main CNC forum too, as I am in quick need of an answer. Please forgive me Don.)
When threading using a G76 on a Haas lathe, do I program the X axis absolute value for the thread major at the back end of the thread after the taper, or the at the thread major at my Z start point?
(I have totally brain farted here)
I.E
(part previously bored with taper, and entry chamfer)
G00 X.85 Z.25
G76 X.998 Z-.75 K.054 D.015 I.0312 F.0714 A29
Last night, I used X1.061 (which would be the largest thread major @ Z.25
and BAD STUFF happened.
However, if I use X.998 (being the smallest thread major at Z-.75) it does not look right on verify.
OR am I being a total useless blob of human cells, and doing it COMPLETELY wrong? I am going on too few hours of sleep lately for any cohesive thought process!
Thanks,
Doug.
When threading using a G76 on a Haas lathe, do I program the X axis absolute value for the thread major at the back end of the thread after the taper, or the at the thread major at my Z start point?
(I have totally brain farted here)
I.E
(part previously bored with taper, and entry chamfer)
G00 X.85 Z.25
G76 X.998 Z-.75 K.054 D.015 I.0312 F.0714 A29
Last night, I used X1.061 (which would be the largest thread major @ Z.25
and BAD STUFF happened.
However, if I use X.998 (being the smallest thread major at Z-.75) it does not look right on verify.
OR am I being a total useless blob of human cells, and doing it COMPLETELY wrong? I am going on too few hours of sleep lately for any cohesive thought process!
Thanks,
Doug.
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