Flange Bushing Cloth

[Isaac sur Noos]

I ordered it from Renner Germany, I was made aware that the flange
bushing cloth is always pure wool, while the key bushing cloth not
always.
Yes 1.0 is what I use most often.
The pre glued are easy to work with, they dry faster so you can use it
outside shop (and avoid waiting 8 hours to cut the cloth)

We usually ask these jobs to be done by Abel or Renner, they do that
for less money than your time permit, and it is cleaner.

Terry, the pinning plank is simply a "L shaped" support with a little
brass plate with a saw kerfs, or even a vertical wood plank hold in
your usual fixture, with a saw kerf.

This allow to pull straight the center pin, retaining the flange, it
helps for consistency and less effort.
We of course use center pins as reamers after having produced a rough
zone with rolling between 2 medium or fine grit files. Usually the
size goes up by 1 size when roughening.
A yet stated, it is important to work the inside of the flange always
the same direction (the same that was used originally when inserting
pin) , that allow to use "half sizes" when pinning, and keep more
material.

You may order set of flange cloth a Jahn's in Germany if not possible
in the US, I bought mines 8 years ago or more.

The graphite used in Renner's, being highly hygroscopic (was said) may
be help the cloth to accept more moisture, and get thicker in humid
season (side effect or original idea ?)

I see very old Renner pinning that are perfect, and other recent that
are screwed (and the opposite !)

best to all.

Isaac

Best Regards.





> -----Message d'origine-----
> De : pianotech-bounces@ptg.org
> [mailto:pianotech-bounces@ptg.org]De la
> part de Michael Spalding
> Envoye : samedi 24 janvier 2004 06:05
> A : Pianotech
> Objet : RE: Flange Bushing Cloth
>
>
> Benny,
>
> I just visited the website, and you're right, the cloth
> isn't there.  You
> can order it by phone from Lloyd, or buy it in person at
> the conventions.
>
> Mike
>
>
> > [Original Message]
> > From: Benny L. Tucker <precisionpiano@alltel.net>
> > To: <pianotech@ptg.org>
> > Date: 1/23/2004 10:16:33 PM
> > Subject: Flange Bushing Cloth
> >
> > Mike, Terry, Isaac, and Xavier,
> >     Thanks for your replies concerning the flange bushing
> cloth. I think I
> > would like to order a couple of pieces of the Renner
> cloth, but I can't
> find
> > it anywhere on their website, or the Lloyd Meyer website.
> Who do you guys
> > order this stuff from? I don't have an account with
> Renner at this time.
> > Thanks again for your help!
> >
> > Benny L. Tucker
> > Yamaha Factory Tuner
> > Precision Piano Tuning and Repair
> > Thomaston, GA.
> > Benny,
> >
> > There's good discussions on how to do this in either
> Steve Brady's "A
> Piano
> > Technician's Guide to Field Repairs", or a Bill Spurlock
> article in the
> PTG
> > Technical Exam Source Book.  To answer your specific
> questions:  A #37
> > drill works better for reaming than a 7/64.  At  0.104",
> It's only a
> > couple thousandths of an inch smaller, but it usually is
> a better fit to
> > the original hole, so it removes only felt, not wood.  Turn
> > counterclockwise while inserting, then clockwise to ream.
>  Tearing your
> own
> > strips is the only way to go:  more economical than
> buying pre-cut, and
> > nobody's gunked it up with graphite.  the rule of thumb
> for bushing cloth
> > width in small holes is about 2 1/2 times the hole
> diameter, which  says
> > that  17/64 should be about right.  Control the width by
> nicking with a
> > razor, then tearing from the nick.  The torn width will
> appear wider than
> > the nicked width because of the edge fuzz, so you might
> have to do a
> couple
> > to get calibrated.  Renner sells bushing cloth in
> approximate 1 square
> foot
> > pieces for about $10 each, choice of  four thicknesses:
> 1.0mm, 1.2mm,
> > 1.35mm, 1.5mm.  I haven't done any flange centers for a
> while, but I think
> > the 1.0 works out about right in a .104 hole.
> >
> > hope that helps,
> >
> > Mike Spalding
> >
> > Benny L. Tucker
> > Yamaha Factory Tuner
> > Precision Piano Tuning & Repair
> > Thomaston, Ga.
> >
> >
> > _______________________________________________
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>
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