Strike length

[Newton Hunt]

Hi, Michail,

Hammer location is a matter of design and preference or establishment in
the factory. Each maker has their own spec and sometimes this faries
from model to model by the same factory.

On steinway it is generally 5.125", but this can change based on action
location. plate casting and if they were impropverly glued on in the
factory.  Take 5.123" is a beginning point, but set 88 and the bottom of
the top section by ear and straight line from those two points.

Mason & Hamlin are glued on at 89 degress, not 90 degrees and the specs
change from model to model.

Quite often hammers are bored improperly to fit an individual piano,
hence my preference for boring hammers myself.

Setting optimum location is done by ear and careful assessment of the
factory job, if original and use of common sense and experimenting when
not.

I hope this has made it as clear as molasus.

	Newton
	nhunt@jagat.com