Front Rail Punching Interference

Farrell mfarrel2@tampabay.rr.com
Sun, 14 Nov 2004 08:11:12 -0500


This is a multi-part message in MIME format.

---------------------- multipart/alternative attachment
Of course! But it's ok because the originals are those really nice ones =
with the knuckle integrated into the shank!

I'm sure you all have seen this kind of crap workmanship before, but =
last night I thought I would turn my attention to the backchecks and =
putting a radius on the hammer tails. The guy also put new backchecks =
on. Every one at a unique height. Many pushing up adjacent hammers upon =
key stroke. The hammer tails hit the backcheck at about a 45 degree =
angle (tails don't check, they clunk!). Then I try to gang sand the =
tails for a radius. Tails are angled every which way. In, out, rotated.

If you took all the loose parts, thew them in a box and shook it up and =
then looked inside, you would have something that looks pretty close to =
this action. I am exaggerating only slightly.

Arrrrggggg! It would have been less work to try and make the original =
parts function, rather than trying to make this hodge-podge of parts =
function.    :-(

Ain't there a law?????

Terry Farrell
  ----- Original Message -----=20
  From: Avery Todd=20
  To: Pianotech=20
  Sent: Saturday, November 13, 2004 5:47 PM
  Subject: Re: Front Rail Punching Interference


  Just wondering, but did "they" also install those new hammers on old =
shanks/knuckles? :-)=20

  Avery=20

  At 03:56 PM 11/13/04, you wrote:

    I think I found part of the problem already. The tooner before me =
"rebuilt the piano" - you know, the full monty - new strings, hammers, =
damper felts (yes indeed, hanging way out past the damper heads) and =
keytops  - none of which were installed straight/aligned, etc. I imagine =
this thing had ivory keytops originally. The new keytops are thick =
plastic (~2mm), and yup, you guessed it, he didn't plane the keytops =
down to compensate for the thicker keytops - so now I have keys that are =
one or two millimeters thicker than original.....
    =20
    Oh well, back to the drawing board ........ er, a, regulating =
table......
    =20
    Terry Farrell

      ----- Original Message -----=20

      From: antares=20

      To: Pianotech=20

      Sent: Saturday, November 13, 2004 4:04 PM

      Subject: Re: Front Rail Punching Interference


      Terry,


      First of all, you need to know the exact key height of your key =
board.

      This is the key to your regulation.

      For instance.... the key height for Steinway model S-B (measured =
from the key bed to the underside of the key top covering) is 63 mm.

      For Yamaha's this 64 mm.

      It is the only way to get your basis straight.

      After that, we're talking.


      Andr=E9 Oorebeek


      On 13-nov-04, at 20:47, Farrell wrote:


        <?fontfamily><?param =
Arial><?smaller>Help!<?/smaller><?/fontfamily>



        <?fontfamily><?param Arial><?smaller>I'm trying to regulate a =
Baldwin "Monarch" microgrand action. I haven't looked up the piano's age =
(can't find my Pierce Atlas), but it is from the first half of the 20th =
Century. I've run into this before. I level keys (1/2" sharp height), =
regulate blow, let-off, etc., and then go to set aftertouch. When I have =
the proper aftertouch on the sharps, the adjacent naturals hit the sharp =
front rail punching before they hit their own front rail punching when =
depressing the natural.<?/smaller><?/fontfamily>



        <?fontfamily><?param Arial><?smaller>That's =
bad.<?/smaller><?/fontfamily>



        <?fontfamily><?param Arial><?smaller>What gives? Have I done =
something stupid? Have I simply overlooked =
something?<?/smaller><?/fontfamily>



        <?fontfamily><?param Arial><?smaller>Another thing - I have to =
reduce blow to 1-3/4 inches to provide sufficient key travel (about 3/8 =
inches - way less than spec) to allow let-off and a tad of aftertouch. I =
replaced the back rail felt with original thickness (which is the =
thinnest sold by the supply houses), I am using the thinnest front rail =
punchings available, and I even have key height a little bit higher than =
they were (and above spec - more than 2-1/2 inches - I'm quite sure I'm =
still OK with the fallboard).<?/smaller><?/fontfamily>



        <?fontfamily><?param Arial><?smaller>Again, what gives? Action =
clearly appears all original.<?/smaller><?/fontfamily>



        <?fontfamily><?param Arial><?smaller>This is all a lot easier =
when you rebuild the action, go through the Stanwood and geometry stuff, =
and have it all correct from the get-go! Because, as in this case, it =
can't be me, it's gotta be the action! Right?   =
;-)<?/smaller><?/fontfamily>



        <?fontfamily><?param Arial><?smaller>Thanks for anything anyone =
has to offer.<?/smaller><?/fontfamily>



        <?fontfamily><?param Arial><?smaller>Terry =
Farrell<?/smaller><?/fontfamily>


      friendly greetings

      from

      Andr=E9 Oorebeek


      "where Music is, no harm can be"

---------------------- multipart/alternative attachment
An HTML attachment was scrubbed...
URL: https://www.moypiano.com/ptg/pianotech.php/attachments/c9/fc/9c/06/attachment.htm

---------------------- multipart/alternative attachment--



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