Ari, I like that idea. It sounds simple and workable. I guess that won't compromise the firm attachment of the felt to the hammer core. Bob Sent from my iPhone On Feb 7, 2013, at 12:48 PM, "Ari Isaac" <isaac at isaacpiano.com> wrote: > Hi Bob. > > The problem isn't as severe as you might think. > > It's true that the early Steinway hammers were quite short. What I've done > on previous sets for early Steinways, which happened quite often, is to trim > back the felt in the low tenor where, as you say, you'd have to drill into > the felt. this presents no problem. That's all that's involved. Also, your > measurements aren't as short as others I've had to deal with so I don't see > much of a problem. > > > Hope this helps. > > ari isaac > > hand made bass strings and piano hammers > > 416 229 2096 > > isaac at isaacpiano.com > > http://www.isaacpiano.com > > http://www.facebook.com/isaacpiano.com > > -----Original Message----- > From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of Bob > Hull > Sent: February-07-13 12:24 PM > To: caut at ptg.org > Subject: [CAUT] More hammer length needed > > I am building a new top action with WN&G Parts. The piano is a 1923 > Steinway M. The needed hammer lengths after calculations is from 42.5 mm in > the low tenor to 45 mm in the high treble. > Bass hammer calculations call for 50 mm hammer boring in the low bass up to > 52 mm at the top of the bass section. Obviously this would have me drilling > just about into the felt on the lower ends of the sections. The old > hammers are raked I guess to allow more hammer length. I don't want to rake > the hammers on the new action. What do you think about planing down the key > frame bottom or rails to remove 2-3 mm of height ? I am installing new key > pins anyway. Also, The clearance above the stack to the pin block is barely > more than 1/4". It has been rebuilt at least once already so it's hard to > know what the original set-up was. With WN&G rails and parts I can adjust > things much more easily than with the SS fixed rails/brackets. What do you > think about this solution of altering the key frame? Somehow I need more > distance between the hammer action center and the string ht. in order to > drill lower on the hammer. > Bob Hull > Sent from my iPhone >
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