Klarinet Archive - Posting 000111.txt from 2009/12

From: Ton Damm <tondamm@-----.com>
Subj: RE: [kl] Buffet crack repair question
Date: Tue, 22 Dec 2009 08:21:59 -0500


For anyone who wants to see a few photo's of a crackrepair on the
bell of my buffet done by my youngest son who is actually a guitar
builder/repairman here is the link.
=20
http://peterdammguitars.webs.com/2009repairs.htm

After a few "page-downs" you'll see he did a great job.

Best regards=2C
=20
Ton Damm

> From: bowenk@-----.com
> To: klarinet@-----.org
> Date: Mon=2C 21 Dec 2009 08:34:36 +0000
> Subject: RE: [kl] Buffet crack repair question
>
> I never mind being corrected by someone with greater experience or
> knowledge.
>
> Note though=2C that I was not talking about mixing powdered wood with
> superglue=2C that's an interesting technique. I was cautioning against
> pressing the crack together and simply gluing opposite sides of the crack
> (with whatever glue). This was advice from Stephen Fox. For a very thin
> crack=2C superglue could indeed wick into the crack without pressure) and=
make
> a seal=2C though its gap-filling properties are very limited.
>
> Keith Bowen
>
>
>
> -----Original Message-----
> From: Nitai Levi [mailto:clarnibass@-----.com]
> Sent: 20 December 2009 12:13
> To: klarinet@-----.org
> Subject: Re: [kl] Buffet crack repair question
>
> Most (I would dare say almsot all) professional repairers would disagree
> with what Keith Bowen wrote. Using super glue=2C with or without wood dus=
t
> mixed=2C and in addition to or without pinning=2C is very common for repa=
iring
> cracks. A lot of repairers still pin=2C but there are more and more repai=
rers
> who find that super glue without pinning works very good in many cases. S=
ome
> repairers report cracks haven't opened for over 10 years with super glue
> alone. By the way some of those repairers have degrees in engineering=2C =
and
> some are wood workers too=2C if anyone cares about those things and not j=
ust
> experience and logic of the repair itself.
>
> One advantage of super glue (the thinnest type=2C not thick or gel) is th=
at it
> wicks to the bottom of the crack using maximum surface of the sides of th=
e
> crack to glue. This is much harder and sometimes impossible with other
> glues. Another problem is when using wood dust with the super glue. If
> someone is putting the wood dust first=2C the glue will soak into it and =
won't
> glue the crack itself reliably. You first have to make sure the glue wick=
s
> to the bottom and only then use wood dust. The type of super glue is
> important too=2C I have tried many types and some are just not as strong =
as
> others. For example Yamaha used to recommend pinning and then changed and
> now recommend gluing.
>
> In the first question it wasn't completely clear if he meant the bell its=
elf
> or the joint that connects to the bell. It's very uncommon to pin a bell.
>
>
>
> From: Keith Bowen=20
> To: klarinet@-----.org
> Sent: Sun=2C December 20=2C 2009 12:56:41 PM
> Subject: RE: [kl] Buffet crack repair question
>
> It should really be repaired professionally (and then you won't see the
> join=2C and it will be as strong as new).
>
> Superglue would be about the worst to use. You should not force the crack
> closed to glue it (which is what superglue needs) as it will only split
> again there or somewhere else. The principle is that you first strengthen
> the part by pinning=2C banding or carbon fiber banding=2C then fill the g=
aps
> with a filler that is usually powdered granadilla mixed with epoxy=2C the=
n
> smoothen and polish the surface to match the wood.
>
> I'm a professional engineer and amateur woodworker and do almost all my o=
wn
> maintenance. But I don't do cracks.
>
> Keith Bowen
>
>
> -----Original Message-----
> From: Al Gray [mailto:agray@-----.com]
> Sent: 20 December 2009 04:15
> To: klarinet@-----.org
> Subject: [kl] Buffet crack repair question
>
> I have a long crack in the bell joint of my older Buffet clarinet.
> Can I repair this by glue? Supperglue?
>
> Al Gray in Medicine Hat=2C Alberta
>
>
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> =20
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