Hope someone can help me with this, Haas sure didn't.
I Need to machine proper pocket/bore and then single point a 3/8-18 NPT thread. Part will have a 0.375 hole already drilled through if it matters. Thread depth is to be 0.407 and material is 6061.
Machine is a 2000 SL20.
Have literally beaten head on Machinery's Handbook trying to figure this out, but to no avail.
Before anyone suggests it, I have already checked Haas' website. Their latest lathe books have NO info about cutting ID NPT threads. The threading info they do provide is VERY vague in my opinion. I even called Haas (Lathe Applications) just now and the gentleman that took my call did his best to help me, but he even admitted the numbers he gave me may not work as he had never programmed an ID NPT thread before.
So..... Anybody out there got a good handle on this???
MANY MANY thanks in advance for any help with this.