In article , John Albers
says...

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.

Other approach for fine pitch threads, simply set the compound in
line with the lathe bed axis, and feed only with the crossfeed
screws. Disadvantage, the tool will be cutting on both
sides simultaneously. This works for finer pitch threads.

When I do this, I put the compound at the right rear quadrant.
You don't need to lean far to see what the dial is reading.

Jim

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