Pinblock Drilling Centering

[gordon stelter]

well, you could of course pick a centering punch of
smaller diameter, and hold it against whgichever side
of the bushing hole you felt appropriate.
     Thump
--- Farrell <mfarrel2@tampabay.rr.com> wrote:
> Lots of good suggestions on centering a hole, but
> Ron is the only one that touched on my real concern.
> I like the Bolduc blocks, but I have a general
> concern about using them on a no-bushing plate. I
> was planning on using (for the first time) a
> Delignit block on this M&H upright. 
> 
> My question is how much movement of the pin due to
> string pulling will occur with a Delignit block and
> with a Bolduc block? My guess is that there will be
> measureable movement of a pin with the Bolduc block
> (but how much???), and somewhere between zero and
> negligible pin movement with the Delignit block. But
> I sure don't know for sure. What does experience
> say?
> 
> Perhaps the bottom line can be stated another way.
> How much, if any, should I favor the pianist side of
> the hole to end up with a centered tuning pin once
> tension is applied to strings with a Bolduc block
> and with a Delignit block?
> 
> Terry Farrell
>   
> ----- Original Message ----- 
> From: "Ron Nossaman" <RNossaman@cox.net>
> To: "Pianotech" <pianotech@ptg.org>
> Sent: Tuesday, October 22, 2002 11:44 PM
> Subject: Re: Pinblock Drilling Centering
> 
> 
> > 
> > >I have never done one of these before, but I fear
> that if you drill the 
> > >hole in the middle of the plate hole you will end
> up with the tuning pin 
> > >riding the plate on the rear side of the hole.
> > >
> > >Terry Farrell
> > 
> > Part of the job is drilling out the plate webbing
> holes big enough that 
> > this won't happen. If you aren't using a low
> density block that won't 
> > support a tuning pin without having the pin riding
> the plate, the hole is 
> > too small anyway.
> > 
> > Ron N
> > 
> > _______________________________________________
> > pianotech list info:
> https://www.moypiano.com/resources/#archives
> 
> _______________________________________________
> pianotech list info:
https://www.moypiano.com/resources/#archives


__________________________________________________
Do you Yahoo!?
Y! Web Hosting - Let the expert host your web site
http://webhosting.yahoo.com/