shank strike weights

[Erwinspiano@aol.com]

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Hi Jon
    More good thoughts from the cape cods noreaster Tech.. I  gave a 
technical on action balancing last night mostly on anaylsis &  diagnosis. It was fun. 
I appreciate this taking it to the next level approach  & will try it straight 
away.
  Presenting material in technical form always helps to solidify it my  own 
head.
  Regards
  Dale

Ultimately the best scenario, inertially speaking, would be to graduate  the 
weight of the hammer heads themselves and group same-weight/knuckle height  
shanks. But most hammer sets are
so erratic in individual weights that it takes invasive procedures to  have 
them comply.


Matching shank SW to hammer weight has proven to require minimal  
intervention for
a smooth SW curve.


First, I bore and taper the hammers.
Weight them and plot them on a graph.
Select shanks accordingly and install them on the rail. (# on underside  next 
to knuckle)
Hang hammers.
Remove h/s/f from the rail.
Cut the protruding shank off with a band saw and rough cut an arc.
Set up fence to trim tails on disk sander to even length.
Arc tails.
Weigh SW and plot on chart
Adjust SW
Install h/s/f on rail.


I sounds like a lot of work but it goes fast. I like to arc the tails  after 
hanging the hammers
to produce a nice finished edge. I also ease the edges (sides and bottom)  of 
the tail molding
to remove the sharp corners with a file.


-- 


Regards,

Jon Page



 

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