Action Ratio and Dip and Blow and Etc.

[Farrell]

I moved the knuckle out 2mm from the center - so now it is 18mm. Jack/knuckle alignment isn't quite as good - but not real bad:



It looks like my knuckle core might not be real square with the shank - I'll double-check that (could just be the camera angle) - I cut the slot by hand and it was a little bit sloppy.

Looks like there is plenty of room for the jack in it's new rest position in the rep lever window:



But more to the point - WOW! DW went from 50g to 43g and upweight is still okay at 23g. So now I will do some calculating and figure out how much lead I can remove for a new target front weight. Gettin' more lead out can only improve this action I think.

If I'm going to end up moving knuckles, I guess I'll have to dig through the archives on shank notching techniques - I know there have been a number of discussions on that topic.

Terry Farrell
  > ----- Original Message ----- 
  >> What is the knuckle radius?
  >> If you can bump it out to 17 or 18mm
  >> you can increase the dip and get rid of some lead.
  > 
  > So you are of the opinion that my dip is undesirably small? How can you be 
  > so smart to know that this action had lots of lead in the keys?  ;-)
  > 
  > 16mm. I'll look to see if there is room in the rep lever window. Getting rid 
  > of lead would be good, I think. I have reduced the lead from six in the bass 
  > to 4-1/2, but that is still a fair bit of lead compared to the ideal of 
  > three in the bass to none in the treble.
  > 
  >> Maintain about a 90 degree angle between the jack and shank at rest.
  > 
  > I think it's close to 90 degrees now - I'll look to see how moving the 
  > knuckle out further will affect things.
  > 
  >> Is the wippen flange centers at a good height? Usually 2 1/2" below the 
  >> HCH.
  > 
  > I'm trying to imagine what HCH could be - and am failing. What is HCH?
  > 
  >> Jon
  > 
  >
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