Please help.!!
I am usung a cincinnati hawk turning centre with fanuc 21-t control.
i'm having a bit of trouble with a 1/2" NPT external thread. I have read previous problems that people have had with the 'x' dimension and the taper, but i still dont get it.
My threading cycle is as follows
T0300 (14 TPI)
X22.22 Z3.0 T0303
G76 P030060 Q100 R0.025
G76 X18.43 Z-19.05 R-0.672 P1450 Q100 F1.814
G00 X200.0 Z200.0 T0300
M01
i'm not sure how far from the face of the job i should start or how to work out the 'x' and 'r' values.
Any help would be really appreciated.
James