<br><font size=2 face="sans-serif">If the knuckle was bouncing, then the
backcheck would have to be out of regulation, going back to the regulation
issue...</font>
<br>
<br><font size=2 face="sans-serif">Paul</font>
<br>
<br>
<br>
<table width=100%>
<tr valign=top>
<td width=40%><font size=1 face="sans-serif"><b>Willem Blees <wblees@bama.ua.edu></b>
</font>
<br><font size=1 face="sans-serif">Sent by: caut-bounces@ptg.org</font>
<p><font size=1 face="sans-serif">12/11/2006 04:22 PM</font>
<table border>
<tr valign=top>
<td bgcolor=white>
<div align=center><font size=1 face="sans-serif">Please respond to<br>
College and University Technicians <caut@ptg.org></font></div></table>
<br>
<td width=59%>
<table width=100%>
<tr valign=top>
<td>
<div align=right><font size=1 face="sans-serif">To</font></div>
<td><font size=1 face="sans-serif">College and University Technicians <caut@ptg.org></font>
<tr valign=top>
<td>
<div align=right><font size=1 face="sans-serif">cc</font></div>
<td>
<tr valign=top>
<td>
<div align=right><font size=1 face="sans-serif">Subject</font></div>
<td><font size=1 face="sans-serif">Re: [CAUT] Oh WimBlees, you isn't off
da hook!</font></table>
<br>
<table>
<tr valign=top>
<td>
<td></table>
<br></table>
<br>
<br>
<br><font size=2><tt>Quoting Paul T Williams <pwilliams4@unlnotes.unl.edu>:<br>
<br>
> I think a hard knuckle would make more of a click than a bounce. But<br>
> it <br>
> could bounce, I suppose...<br>
> <br>
> Paul<br>
> <br>
<br>
Paul<br>
<br>
That's a good observation. But does the consistency of the leather <br>
have an effect on a bobbling hammer? <br>
<br>
Wim <br>
<br>
<br>
> <br>
> Willem Blees <wblees@bama.ua.edu> <br>
> Sent by: caut-bounces@ptg.org<br>
> 12/11/2006 02:27 PM<br>
> Please respond to<br>
> College and University Technicians <caut@ptg.org><br>
> <br>
> <br>
> To<br>
> College and University Technicians <caut@ptg.org><br>
> cc<br>
> <br>
> Subject<br>
> Re: [CAUT] Oh WimBlees, you isn't off da hook!<br>
> <br>
> <br>
> <br>
> <br>
> <br>
> <br>
> Quoting Robin Blankenship <tunerdude@comcast.net>:<br>
> <br>
> > Wim,<br>
> > <br>
> > Any possibility that the hardness of the knuckle could contribute<br>
> a<br>
> > bit to <br>
> > the bounce???<br>
> > <br>
> > Robin Blankenship<br>
> > <br>
> <br>
> Good question. <br>
> <br>
> Wim <br>
> <br>
> > <br>
> > ----- Original Message ----- <br>
> > From: "Willem Blees" <wblees@bama.ua.edu><br>
> > To: "College and University Technicians" <caut@ptg.org><br>
> > Sent: Monday, December 11, 2006 10:13 AM<br>
> > Subject: Re: [CAUT] Oh WimBlees, you isn't off da hook!<br>
> > <br>
> > <br>
> > > David<br>
> > ><br>
> > > Thanks for reminding me. Because of some scheduling conflicts,<br>
> I'm<br>
> > > working on it this Friday afternoon.<br>
> > ><br>
> > > But in addition to doing the wippens on the Concert Hall<br>
> Steinway,<br>
> > > I've been looking at other grand pianos, and found that
most of<br>
> > them<br>
> > > have bobbling hammers, to some extent. I think this summer
I<br>
> will<br>
> > > spend a considerable amount of time evaluating and correcting<br>
> > wippens.<br>
> > ><br>
> > > During the first part of this thread, someone wrote a list
of<br>
> all<br>
> > the<br>
> > > possible reasons a hammer could bobble. Whoever that was,
could<br>
> > you<br>
> > > post it again. The information could make for a nice article.<br>
> > ><br>
> > > Assuming the regulation is correct, one of the problems
with<br>
> > making<br>
> > > the "perfect" adjustment to the wippen is that
there are too<br>
> many<br>
> > > variables which are almost impossible to measure. For instance,<br>
> > the<br>
> > > touch. How soft can we hit the key and expect the hammer
to<br>
> check.<br>
> > > Then there is the curvature and roughness of the hammer
tail and<br>
> > the<br>
> > > rake and roughness of the back check. The strength of the<br>
> spring,<br>
> > and<br>
> > > the condition of the spring groove can also have an impact.
The<br>
> > only<br>
> > > thing we have control over is the gram resistance of the<br>
> > balancier.<br>
> > ><br>
> > > Am I missing anything?<br>
> > ><br>
> > > Wim<br>
> > ><br>
> > ><br>
> > > Quoting David Skolnik <davidskolnik@optonline.net>:<br>
> > ><br>
> > >> Hey Wim -<br>
> > >> Just a friendly reminder. Have you had a chance
to look at the<br>
> > piano<br>
> > >> yet?<br>
> > >><br>
> > >> David Skolnik<br>
> > >><br>
> > >><br>
> > >><br>
> > >> At 08:58 AM 11/15/2006, you wrote:<br>
> > >> >Since this thread got started with wippens, I want
to report<br>
> that<br>
> > I<br>
> > >> am<br>
> > >> >not going to be able to do the work on the balanciers
on the D<br>
> > >> until<br>
> > >> >Dec. 7. I will give a report once I'm done.<br>
> > >><br>
> > >><br>
> > ><br>
> > ><br>
> > > Willem Blees, RPT<br>
> > > Piano Tuner/Technician<br>
> > > School of Music<br>
> > > University of Alabama<br>
> > > Tuscaloosa, AL USA<br>
> > > <br>
> > <br>
> > <br>
> <br>
> <br>
> Willem Blees, RPT<br>
> Piano Tuner/Technician<br>
> School of Music<br>
> University of Alabama<br>
> Tuscaloosa, AL USA<br>
> <br>
> <br>
> <br>
<br>
<br>
Willem Blees, RPT<br>
Piano Tuner/Technician<br>
School of Music<br>
University of Alabama<br>
Tuscaloosa, AL USA<br>
<br>
</tt></font>
<br>