Restoring old uprights

[Jon Page]

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At 10:21 PM 08/15/2001 -0700, you wrote:

>----- Original Message -----
>From: "Charles Neuman" <piano@charlesneuman.net>
>To: <pianotech@ptg.org>
>Sent: August 15, 2001 7:04 PM
>Subject: Re: Restoring old uprights
>
>
> > Let me see if I understand the method described by Newton and Del below. I
> > understand it in two ways, and I think only one is right: 1) Do you route
> > out large sections of the pin block and then fill those sections with a
> > large piece of pinblock, cut to the right size? If so, how large are the
> > sections (how many pins are in each section)?
>---------------------------------------------
>
>Look behind Door #1.
>
>Most of the time we route out two sections, the bass section and all of the
>tenor/treble section. Then cut and shape inserts to fit.
>
>Del

I have photos of an pin block inlay I did on a Bechstein a few years ago.

A table-mount drill press on the keybed with a Forstner bit removed most of 
the stock
and a chisel cleaned up the perimeter. I left about 1/8" of block on the 
bottom.  The inlays
were carefully fitted for 'no play' and epoxied in with Epoxy Tech 301. 
After that shrank,
a thicker epoxy was added to the edges and repeated until full.  The flange 
had MarineTex
epoxy applied and the plate fit in.

A new pin pattern was laid out on tracing paper and transferred to the 
block.  I drilled the holes
before installing the inlays. I did not drill all the way through the block 
in order to prevent the
epoxy from filling the holes from the bottom.

While I had the thin epoxy working, I reglued the square'd corners of the 
case at the bass
and treble.

Five years prior another "rebuilder" had plugged the block. Unfortunately 
he did not tend to the splits
between the holes and the plugs caused the cracks to expand...

The sound board had large areas loose from the ribs which the customer 
didn't have the money
to replace.  I devised the Sound Board Press which employs wooden I-beams 
clamped to the rim
with pipe clamps and spring-loaded plungers to apply pressure for reglueing 
the ribs, the board
was supported from the bottom; jpg's available.

A fun project.

Jon Page,   piano technician
Harwich Port, Cape Cod, Mass.
mailto:jon.page@verizon.net
http://www.stanwoodpiano.com
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