Hard Hammers

[Gregor _]

hmm, good question. I can´t explain that. I am even not shure if
needling from the side is better or not, I never tried. I think I
should search the archives for that topic to see what was discussed
yet. But one is shure: it´s not new and even that plier is not new. The
mentioned collegue does not aim to be the inventor me thinks.



BTW: I just looked up the price for that pliers: 248 Euro which are 394 US-Dollar. Wow! I think I won´t order :-)



Gregor




> From: ilvey at sbcglobal.net
> To: pianotech at ptg.org
> Subject: RE: Hard Hammers
> Date: Thu, 24 Apr 2008 23:20:21 -0700
> 
> First of all, I hope we are not talking about Glover's needles.  Now why would hammer fibers be less disturbed from the side?   If fibers are a sort of a tube shape, what difference does it make if you stick a needle in from one side or the other?   Also from the side has more chance of center damage...
> 
> David Ilvedson, RPT
> Pacifica, CA  94044
> 
> ----- Original message ----------------------------------------
> From: "Gregor _" <karlkaputt at hotmail.com>
> To: "Pianotech List" <pianotech at ptg.org>
> Received: 4/24/2008 12:07:02 AM
> Subject: RE: Hard Hammers
> 
> 
> 
> >On the Music Fair Frankfurt I met a collegue who says that the traditional method of 
> >needeling which is tought at the German pianotech school in Ludwigsburg is not the 
> >best way for voicing. He claims that hammers should not be needled on the 
> >shoulder, better is from the side. I can´t explain that very well in English, but 
> >imagine the hammer looking from above. Usualy we needle from above and from the 
> >under side. He says it´s better from the left and right side for the beginning. Only 
> >the final fine work should be done in the traditional way. He argues that the fibres 
> >are destroyed by the traditional way. By needeling from the side the fibre 
> >interconnection is loosened instead of destroying single fibres. He is writing a book 
> >about that and I saw some excerpts in form of some powerpoint presentations 
> >where he placed some microscope pictures of fibres and fibre interconnections. 
> >Looked and sounded convincing. He constructed a tool for voicing, a special gripper. 
> >That is sold by Jahn. On the Jahn homepage you can see a picture:
> 
> >http://www.pianoteile.com/
> 
> >Look for *Intonierzange E&B Olbrich* at the top on the right side. Jahn writes about 
> >THE REVOLUTION in voicing. As far I understood, in the future there will be a new 
> >version available which works from 2 sides, i.e. the needles will come from both 
> >sides.
> 
> >I don´t know if this is really a revolution, but it´s lesser work with that gripper. I 
> >think I will order one and try it.
> 
> >Gregor
> 
> >From: deanmay at pianorebuilders.com
> >To: pianotech at ptg.org
> >Subject: RE: Hard Hammers
> >Date: Wed, 23 Apr 2008 12:39:28 -0400
> 
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> >Here is an idea for a needling tool.
> >Someone who has too much time on their hands and likes to modify tools could
> >build one for the rest of us. 
> 
> > 
> 
> >What if you took a small air nailer, say
> >for brad nails, and modified the end of the piston that pushes the nail head so
> >that it would accept and capture a single needle? With a single pull of the
> >trigger it should easily fire the needle as deep as you want it to go and the
> >spring loaded piston would pull it right back out. The business end of the
> >nailer could be set up with an adjustable foot that could control the depth of
> >penetration. 
> 
> > 
> 
> >The advantages would be the ability to get
> >lots of deep needle penetration on hard hammers without wearing yourself out.
> >It would also probably incur minimal stress on the hammer molding and glue
> >joint compared to traditional needling. 
> 
> > 
> 
> >A hand operated staple gun might also work
> >which would give more portability. 
> 
> > 
> 
> 
> 
> >Dean
> 
> >Dean May            
> >cell 812.239.3359 
> 
> >PianoRebuilders.com  
> >812.235.5272 
> 
> >Terre
> >  Haute
> > IN 
> > 47802
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> 
> >From: pianotech-bounces at ptg.org
> >[mailto:pianotech-bounces at ptg.org] On Behalf
> >Of erwinspiano at aol.com
> 
> >Sent: Wednesday, April 23, 2008
> >11:03 AM
> 
> >To: pianotech at ptg.org
> 
> >Subject: Re: Hard Hammers
> 
> 
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> > 
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> 
> >  Hi John
> 
> >  Petrified felt,  yes indeed a, Paul Bailey coined phrase.
> 
> >   I've tried the Dremel many times & find it rather
> >useless, but hey they can't be worse. I simply marvel at the lack of interest
> >many piano makers have in tone as is evidenced by what they call piano hammers.
> >Those who purchased the inexpensive pso simply need the paradigm shift that
> >they got a bargain that they now need to invest in to make it a legitimate
> >instrument. Like getting a great car cheap that needs a tune up & further
> >performance enhancement. Ok....adequate car
> 
> >  All our heroic voicing efforts in these cases as I see it.... are not
> >our problem.
> 
> > I of course, suggest a hammer transplant as usual.
> 
> >  A for effort John
> 
> >  Dale
> 
> 
> 
> 
> 
> >>...then perhaps its your general needling approach that
> >needs adjusting.
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> >Sometimes needles won't work at
> >all.  Last week I was servicing a Wurlitzer
> 
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> >grand with petrified hammers. A needle
> >would not penetrate and squeezing
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> >with parallel pliers felt more like a
> >piece of wood than felt.
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> >I used a damp cloth and an iron on the
> >shoulders and a little on the crown.
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> >This relaxed the hammer enough to be able
> >to squeeze the shoulders with
> 
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> >parallel pliers.  It was still
> >plenty loud but the piercing edge was now gone.
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> >I'm considering voicing with a fine drill
> >bit and a Dremel tool on slow speed
> 
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> >so as not to scorch the fibers. Maybe
> >this will create small gaps for the fibers
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> >to expand into and ease the density.
> >It certainly couldn't hurt these HSO's.
> 
> 
> 
> >-- 
> 
> 
> 
> 
> 
> >Regards,
> 
> 
> 
> >Jon Page
> 
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> >HSO: Hammer Shaped Object
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