new Baldwin Pin Torque, was PianoTechList Comments

[Ron Nossaman]

>Hmmmm...
>
>Interesting word pictures happening here.
>
>Is it possible for perfect cylinder (as in the
>ideal tuning pin hole) to become larger as it
>deforms?

That would be when the plank is sprung up in the middle to meet the plate.
Holes get bigger (tension) on top where the pins are, and smaller
(compression) at the bottom, where pins ain't.


>My little brain keeps saying "smaller", "tighter
>fit".

That would be when the plank is sprung down in the middle to meet the
plate. Holes get smaller (compression) on top, where the pins are, and
larger (tension) at the bottom, where pins ain't.



>Perhaps my imagination is working in fantasyland
>again!  :-)
>
>Brian

Maybe Stacy's too, but it is an interesting idea and he says it's
noticeable in torque readings - at least in dense Baldwin blocks.


Ron N