Shank/Flange Weights

Avery Todd atodd@UH.EDU
Wed, 09 Oct 2002 08:40:22 -0500


Jon,

So except for the thinned shanks, you don't pre-sort your new s/f
at all before you install them onto the rail?

Or do you get the shank SW and sort them that way, going from lighter
on the bass to heavier toward the treble?

Or does it make a lot of difference with the measurements SS measurement
coming out to 1.5g to 2g?

The bottom line is that I'm just trying to level things out as much as
possible before I glue on the new hammers to try and avoid unnecessary
work later.

Avery

>At 04:41 PM 10/8/2002 -0500, Avery Todd wrote:
>>Hi Jon,
>>
>>That comes later. If I'm not mistaken, you're the one who got
>>me started weighing the "raw" parts before I installed them. :-)
>>
>>Avery
>
>Avery,
>The full weight of the s/f is not a factor at all.  It is the 
>levered weight which is used in the calculations.
>
>Strike Weight = Hammer weight + levered shank Strike Weight
>
>It's the full weight of the hammer, not the shank.
>
>Jon
>
>>>At 03:43 PM 10/8/2002 -0500, you wrote:
>>>>I just got through weighing a set of new shanks/flanges
>>>>for a S & S 'M'. They ranged from 8.2 grams to a low of
>>>>6.8 grams! No wonder we have "weight" problems with new
>>>>parts!
>>>>
>>>>Avery
>>>
>>>It's not the actual weight of the s/f but he levered weight which 
>>>the string.
>>>
>>>With center pin on a pivot off the scale (flange is straight up 
>>>-no weight effect)
>>>place the hammer end on a riser on the scale where the hammer is glued.
>>>
>>>You will find the weight then to be in the range of 1.5g to 2 g
>>>
>>>
>>>Regards,
>>>
>>>Jon
>>>
>>>
>>>_______________________________________________
>>>caut list info: https://www.moypiano.com/resources/#archives
>>
>>_______________________________________________
>>caut list info: https://www.moypiano.com/resources/#archives
>
>
>_______________________________________________
>caut list info: https://www.moypiano.com/resources/#archives


This PTG archive page provided courtesy of Moy Piano Service, LLC