But if you want to attach to the wall above bath him,
then the depression angle is too small, so the water squirts out of the bathtub. The mobility of the holder to the left or right is meaningless, because you can anyway turn the shower head around.
For other places of attachment of depression could be a problem. But I wanted to bring the jet of water perpendicular to the center of Bath. In addition I have milled the lower jaw of the ball bearing. It was a difficult homework.