[pianotech] Pinblocks

Ron Nossaman rnossaman at cox.net
Sat Nov 6 21:02:49 MDT 2010


On 11/6/2010 9:36 PM, Joseph Garrett wrote:
> Ron,
> I agree that the substrate does not need to be as elegant as that. Nor,
> is it as critical as the top "layer". However, I do, also, believe that
> the substrate needs to be of a consistant density, what ever that
> denisty is. the use of high-grade maple is, IMO, not that necessary.

Yup, I agree. Pretty much any low density commercially available (or 
shop made) block will meet the criteria.


>The
> top "layer" does need to be of a high quality and consistant throughout,
> IMO. I think we are both on the same page. I was just inquiring why the
> top layer was inconsistant, that's all.<G>

 From a performance perspective, the strange mutant-strata cap we see in 
the photo is not going to be a problem at all in practice, or even 
detectable after installation. The laminations aren't flat, but it's 
still uniform. Looks to me like resaw cupping, and planing with the non 
flat side down first. I wouldn't sell one like that to another tech, 
because of the anticipated discontent at the way it looks, but  I 
wouldn't worry about it at all for my own use.

Ron N


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