no letoff clunk

[Kevin E. Ramsey]

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I've also noticed on Charles Walters uprights that they left pencil =
marks on the keysticks when they were doing the final key leading, so I =
don't think that was done after it left the factory. Let-off won't feel =
as pronounced on an upright as it will on a grand anyway. If you're =
looking for the 1/16" gap on an upright jack, it's critical that the =
back checking distance be correct, otherwise, all bets are off.
    On a grand, to get a good feeling of a sharp let-off, the drop must =
be set correctly, and there must be some aftertouch.

Kevin.
  ----- Original Message -----=20
  From: Richard Brekne=20
  To: Pianotech=20
  Sent: Wednesday, September 24, 2003 12:14 AM
  Subject: Re: no letoff clunk


  We dealing with a grand or an upright ?=20
  A grand action might have an aftertouch that feels a bit like a =
"clunk".... after all the jacktop does lift the knuckle a mm or two off =
the repetition arm before it slips out from underneath it, and then the =
shank falls quickly down onto the arm again. But its supposed to be a =
rather comfortable clunk if you want to use that word :)=20

  None of this has anything to do with keyleading tho... tho perhaps you =
were just point out that it looked like somebody had been dinking around =
with the action before ??=20

  In anycase... as long as you are getting letoff close enough, enough =
drop / jack clearance, and things work well... is there a problem ? Is =
it just that aftertouch is too smooth ?? That condition in a grand =
action normally means one of two things to me... either the letoff =
button engages too (just a tad before the drop button) , or there is =
simply too little aftertouch.=20

  RicB=20
   =20

    > Hello all ,=20
    > I was summoned to work on a Charles Walter yesterday, and could =
not feel the letoff except on a few keys . there is > plenty of key =
height and dip.It looks as though someone added more key weight.I found =
pencil lines on the keys where > the leads looked different than the =
originals.The jack seems to kinda roll off the butte with no clunk . =
Would someone > please help.=20
    > Thanks=20
    > Dan RPT=20
    >=20
    =20

   =20
  --=20
  Richard Brekne=20
  RPT, N.P.T.F.=20
  UiB, Bergen, Norway=20
  mailto:rbrekne@broadpark.no=20
  http://home.broadpark.no/~rbrekne/ricmain.html=20
  http://www.hf.uib.no/grieg/personer/cv_RB.html=20
   =20

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