1.0"-8 Lefthand thread canned cycle

[jammer66]

Please Help! I have been programming for some time now but I have never come across a 1.0"-8 Lefthand thread. I use a fanuc control and use a G76 for my standard threads, Do I use a G76 for lefthand also and use a negative Z? And if that is the case how does it feed in if there is no relief on the left?

[dcoupar]

I would buy a left handed threading tool and turn it upside down in the turret and run the spindle in reverse. Your G76 cycle should work just fine.

[jammer66]

Thanks for the help! I will do that.