groovey capo

[Michael Spalding]

I've used rods a couple of times in restringing - in one case it was part
of the original design, in the other I was forced to add it because of the
poor quality of the cast iron in the original capo bar.  One thing you've
got to watch out for, is that the rod is well-seated along its entire
length.   The string pressure alone may not be enough to force a carelessly
bent rod down into its seat.  Especially at the break.  The noise this
causes sounds a lot like an old grooved capo bar.  I think bedding the rod
in Liquid Steel or other highly reinforced epoxy is a good precaution
against this kind of problem.   DAMHIK.

Mike


> [Original Message]
> From: Elwood Doss <edoss@utm.edu>
> To: Don <pianotuna@yahoo.com>; PTG <pianotech@ptg.org>
> Date: 11/24/2004 9:23:43 AM
> Subject: RE: groovey capo
>
> I'm assuming the capo d'astro rod can be replaced.  I've seen a few
> older pianos with the rod configuration on the capo.  It makes sense to
> make it replaceable, rather than having to dress the v-bar when the
> piano is restrung.
>
> Joy!
> Elwood
>
> Elwood Doss, Jr. M.M.E.; RPT
> Piano Technician/Technical Director
> Department of Music
> 145 Fine Arts Building
> The University of Tennessee at Martin
> Martin, TN  38238
> 731/881-1852
> -----Original Message-----
> From: Don [mailto:pianotuna@yahoo.com] 
> Sent: Tuesday, November 23, 2004 9:22 PM
> To: PTG
> Subject: groovey capo
>
> Hi Sarah,
>
> Young Chang (among others, I'm sure) has done a "rod"
> It can work well if the "right* material is chosen.
> Sometimes it is not field tested enough. There *can*
> be too much friction for the strings to render.
>
> I like the idea as sooner or later the bar will need
> reshaping. It seems a "no brainer" that just putting a
> new rod in place would be a better fix. However, I'm
> not a piano designer--just a lowly old tooner.
>
> On Bosendorfer pianos the capo can be removed. I
> suppose that means it can be replaced.
>
> >I've toyed with the idea of grinding a groove in the
> capo and epoxying drill rod stock into the groove. 
>
> =====
> Regards,
> Don Rose, B.Mus., A.M.U.S., A.MUS., R.P.T.
> 3004 Grant Rd, Regina, SK, S4S 5G7
> Tuner for the Saskatchewan Centre of the Arts
>
> http://us.geocities.com/drpt1948/
>
>
> 		
> __________________________________ 
> Do you Yahoo!? 
> All your favorites on one personal page - Try My Yahoo!
> http://my.yahoo.com 
>
> _______________________________________________
> pianotech list info: https://www.moypiano.com/resources/#archives