I am reading various sources for information on threading in the lathe. A lot is said about external threads, but not near as much about internal threading.
For the moment, I am interested in cutting right-hand internal v threads.
Various sources say to turn the compound 29.5 - 30 degrees to the left. Disadvantage: No room to enter hole. Or leave compound to the right and turn tool upside down. Or put compound in rear right corner. Disadvantage: Have to lean over lathe to adjust. Other permutations of these exist when the lathe is run backwards. Disadvantage: Danger of unscrewing the chuck.
Why can't you just leave the compound set the same way as when cutting external threads (29.5-30 to the right) with the tool in the normal right side up position? The tool is still only going to cut on one side. This time it will be mostly cutting on the rear side of the tool and not the front as when cutting external threads.
Any thoughts would be greatly appreciated. Thank You