lyre problem

[Barbara Richmond]

Can you go through the keybed to install T-nuts to bolt the lyre to the 
piano?  It's a great repair, if it doesn't interfere with the PianoDisc 
system.

Barbara Richmond,RPT
near Peoria, Illinois

----- Original Message ----- 
From: "John Formsma" <formsma at gmail.com>
To: "Pianotech List" <pianotech at ptg.org>
Sent: Wednesday, September 12, 2007 2:26 PM
Subject: lyre problem


> List,
>
> Gulbransen fetal grand with (of all things) a PianoDisc.
>
> Problem is that lyre braces were removed to install PianoDisc, leaving
> no place for OEM or supply house braces.  (The control unit under the
> piano is attached to where the braces normally would be.)  There are
> two screws that hold the lyre in place.  Without the braces, they
> have, of course, stripped out the wood.
>
> I have two ideas, but don't know if the first one will work long term.
>
> 1) There is plenty of room to add two additional screws.  That's easy
> enough to do, but I'm wondering if those two extra screws will give
> enough support for the lyre.  The two existing screws are toward the
> front side of the lyre block.  Adding the two extra screws toward the
> back of the block might work, but I don't know for sure.  Any guesses?
>
> 2) The other thing is to design some metal braces to go around the
> control unit and screw onto the wood above it.  That is doable, but
> they would have to be welded, and the design of which would take
> significantly more head-scratching.  And trips to a machinist/welder.
>
> What else am I missing?  Any other options or recommendations?
>
> Thanks,
>
> JF