<html> <head> <style> .hmmessage P { margin:0px; padding:0px } body.hmmessage { FONT-SIZE: 10pt; FONT-FAMILY:Tahoma } </style> </head> <body class='hmmessage'>Stéphane,   Maybe no one has mentioned this before, but I would try to thin the shanks (trim the sides) th see if you would get what you're looking for.   Marcel Carey Sherbrooke, QC <HR id=stopSpelling> > From: AlliedPianoCraft@hotmail.com > To: pianotech@ptg.org > Subject: Re: Getting the high treble right > Date: Sat, 14 Jun 2008 08:28:33 -0400 > > Stéphane, before you go through the trouble of re-hanging the hammers while > taking off too much felt off the top, I would try some thin CA right above > the top of the molding. You will be amazed at what it will do the perk up > the last 6 notes. > > Al Guecia > > > > -------------------------------------------------- > From: "Stéphane Collin" <collin.s@skynet.be> > Sent: Friday, June 13, 2008 5:41 PM > To: "'Pianotech List'" <pianotech@ptg.org> > Subject: RE: Getting the high trebble right > > > Hi John. > > > > At the moment, there is 5 mm felt between the molding and the crown at > > hammer 88. On the older hammers, though, there was nearly nothing left. > > Yet they sounded very well, musical and all. That might very well be a > > start point for experiment. But if I reduce the felt layer by 3 mm , I > > will > > have to re hang my hammers, not ? If so, well that is life, as someone > > recently told me. I spent some time in checking the right angle condition > > between hammer and strings at contact time, as you convinced me that this > > condition is absolutely crucial, certainly in the treble. (I'm convinced, > > certainly). > > What is your favourite dope ? I indeed am always deceived by the > > acetone-key top mixture, as it brings some high partials at the cost of > > colour shades dynamics (who disappear), and no more question of fine > > voicing > > after. But I always put the mixture from top. I will certainly try at > > the > > moulding next time. > > I like your idea of letting the different hammers bounce on a hard > > surface. > > Makes so much sense, as always. > > > > Thanks for your valuable input. > > > > Stéphane Collin. > > > > -----Original Message----- > > From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On > > Behalf > > Of John Delacour > > Sent: vendredi 13 juin 2008 23:06 > > To: Pianotech List > > Subject: Re: Getting the high trebble right > > > > At 20:58 +0200 13/6/08, Stéphane Collin wrote: > > > >>Old hammers were lighter than the new ones, but new ones (Renner Wurzen > >>AA) > > > > What thickness of felt have you between the strike point and the > > moulding wood? Quite often Abel gives you too much, which means you > > get far too long a contact with the string. You can either inject a > > hard-setting dope at the point of the moulding or reshape the top of > > the hammer. Applying dope from the top downwards will not achieve > > the effect you want. Let the old hammer and the new bounce on a hard > > heavy surface and see how differently they behave. > > > > JD > > > > > > > > > > > > > > <hr /> <a href='' target='_new'></a></body> </html>