[pianotech] Pitch change, etc.

[David Love]

I haven't really worked out a protocol for planning the root.  I haven't
really gone to laminated bridge caps though I do coat the cap and notches
with epoxy and let it soak in as much as possible (especially in the notches
where the endgrain seems to suck it up more readily) before wiping off the
excess and then letting it harden.  My protocol is to cut the bridge cap to
the right thickness before gluing it on the root which would work for the
laminated caps as well.  I have one piano in process which will get a
laminated cap but it's not delignit (I agree with will about the look of
it).  This cap is one that Terry F. made for me and is only three of four
plies of maybe 2 mm thick (I haven't looked at it in awhile).  It's all
maple and because there are fewer laminations it should hand notch a bit
easier.  It's going on a 6'4" Knabe which has been in the works for
ages--the cobbler's children go unshod.  Customer work seems to keep getting
in the way but I guess that's a good thing.  

David Love
www.davidlovepianos.com


-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of William Truitt
Sent: Wednesday, April 07, 2010 3:15 PM
To: pianotech at ptg.org
Subject: Re: [pianotech] Pitch change, etc.

Truthfully, I haven't decided yet.  I am aware that others like David Love
have worked out a protocol for planing the root down and then gluing on the
cap.  I may do something like that.  I have wondered about making the
laminated cap too thick and then planing it down as usual.  Is there any
reason why that would be verboten?  I will not be using vertical hitch pins
on this coming rebuild.

Will

-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Ron Nossaman
Sent: Wednesday, April 07, 2010 8:54 AM
To: pianotech at ptg.org
Subject: Re: [pianotech] Pitch change, etc.

jimialeggio wrote:
> Hey Will,
> 
> How are you going to notch this baby?  Are you setting yourself up with 
> a power notcher?

It'll hand notch. It's just more work. The more interesting 
problem is ending up with the right bridge height without 
planing the cap.
Ron N