also, the height of the nut, the bow of the neck, and the angle at which the neck is fitted to the body alters the action.

you set the nut with sanding it down or laying small piece of something thin under it. but nuts are usually set at optimum from the factory
you set the bow of the neck with the trussrod
you set the angle of the neck by laying small pieces of something thin under the bridge bolts of the neck. but that's rarely needed! and you can **** up very
so setting the perfect action at the less
fret buzz as possible is quite a project.