[CAUT] Shank to Hammer weight spreadsheet

[Chris Solliday]

actually at this point it is only the shank radius weight that is being measured. Strike weight is the combination of that and the hammer weight. terminology ala Stanwood.
Chris Solliday
  ----- Original Message ----- 
  From: David Love 
  To: 'College and University Technicians' 
  Sent: Saturday, February 16, 2008 11:16 PM
  Subject: Re: [CAUT] Shank to Hammer weight spreadsheet


  I should have said the strike weight of the shank/flange and hammer assembled (or the shank/flange only...



  David Love
  davidlovepianos at comcast.net
  www.davidlovepianos.com 

  -----Original Message-----
  From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of David Love
  Sent: Saturday, February 16, 2008 8:08 PM
  To: keithspiano at gmail.com; 'College and University Technicians'
  Subject: Re: [CAUT] Shank to Hammer weight spreadsheet



  I don't think anyone is weighing the whole shank and flange.  The strike weight of the shank/flange assembled (or the shank only if you do it that way) is weighed using the Stanwood platform. The flange itself has no bearing on the strike weight.  



  David Love
  davidlovepianos at comcast.net
  www.davidlovepianos.com 

  -----Original Message-----
  From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of Keith Roberts
  Sent: Saturday, February 16, 2008 6:07 PM
  To: College and University Technicians
  Subject: Re: [CAUT] Shank to Hammer weight spreadsheet



  My question is, if you are weighing the whole shank and flange, how do you know the distribution of the difference in weight? If 90% of the weight difference is from the knuckle through the flange, the SW wouldn't change much and so the presumed evening out of the weights is not there. The distribution of the mass could vary from shank to shank at all the different weights.



  I like the idea of listening to the sound of the shanks. A thinner light shank should produce a higher sound. Very quick too. 



  Keith Roberts

  On Feb 16, 2008 5:48 PM, Jon Page <jonpage at comcast.net> wrote:

      It takes too long.  Just dry fit the hammers to the shanks

    right after you've tapered them with the table saw ...



  I don't think you get the idea. Mating a shank's SW with a

  hammer weight will require less hammer mass alteration

  to achieve a smooth SW curve.

-- 
  Regards,

  Jon Page


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