measuring ratios/ popsicle puzzle

Erwinspiano at aol.com Erwinspiano at aol.com
Mon Nov 27 08:57:56 MST 2006


 
Ed
  Before I comment further what's the dip at the pin or  wherever you measure 
it. This is very interesting and  peculiar.
  Dale Erwin

Case in point. (here is the puzzle part)
I am currently preparing to rehammer and reshank a 10 year old D which 
has  a very high string height and a very low ratio (4.9). At 1 7/8 blow, the 
 
shanks are almost 1/2" off the cushions.   This action currently  has 17 mm 
knuckle distance, SW in the upper middle range, FW in the  average range, and 
ridiculously low DW of 50 gr. in the bass, 44 gr in the  area of note 25, and 
40-42 
gr. from note 32 on up.  BW on A0 is 40,  tapering down to 33 at note 73.  
I could elect  to reduce the FW, keeping all other things near the same. 
However, this  would not address how high the hammers are off the rest 
cushions.  It  would not increase the power,either.  What would you do? 
( I already  have a plan of action, which entails three changes, but will be 
interested  in other's interpretation.)  

Regards, 

Ed Foote RPT  
http://www.uk-piano.org/edfoote/index.html
www.uk-piano.org/edfoote/well_tempered_piano.html


 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://www.moypiano.com/ptg/pianotech.php/attachments/20061127/b0af0d89/attachment.html 


More information about the Pianotech mailing list

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