Major work on uprights ... was re: pin block drill press

[David Chadwick]

Greetings,
I attended a North East Regional Seminar in 92 or 93 in New Hampshire where 
a technician showed the class how to replace the pin field area without 
having to replace the entire pin block. He routered out the pin area to the 
thickness of the new stock (plus a little more for glue) and epoxied the new 
piece in place, did some surface cleaning  and replaced the plate ready to 
drill. His example was an old upright with plenty of plank to support the 
new piece. I did not save the notes or the class hand-out (and I've never 
tried this myself) but it seemed like a good way to repin without ripping 
out the whole pin block out.

David C.
Las Vegas, NV


----- Original Message ----- 
From: "Conrad Hoffsommer" <hoffsoco at luther.edu>
To: <tune4u at earthlink.net>; "Pianotech List" <pianotech at ptg.org>
Sent: Friday, December 15, 2006 2:20 AM
Subject: Re: Major work on uprights ... was re: pin block drill press


> Alan,
>
> At 23:41 12/14/2006, you wrote:
>
>>I'm curious about two topics:
>>
>>1. Under what conditions do you see umpty-ump (200+) plugs inserted and 
>>drilled as a better fix than oversized pins?
>
> The first thing which come to my not-quite-awake, alleged mind is an 
> obvious split area. Oversize pins are quite effective wedges for 
> propagating splits.
>
> After that would be finding a range of replacement oversize pins already 
> in place. (00-00000!)
>
>
>>2. How many old uprights do you see that are really worth this much time, 
>>trouble, and money?
>
> Dern few.
>
>
>
> Conrad Hoffsommer
> You have the right to remain silent. Anything you say will be misquoted, 
> then used against you.
>
>
>
>