[pianotech] Blocks

[Ron Nossaman]

On 10/23/2012 2:22 PM, Ed Foote wrote:
>
>>> For now, but they will eventually migrate in the block at the top
> without support of some sort, be it the plate, plate bushings, or a
> dense pinblock cap.Ron N hmm... Not convinced
>
> Me neither.  I have more than a few of my blocks I see regularly,
> (sometimes 50-100 times per year). I never wanted the pins rubbing on
> the webbing, so I always drilled for centering in the hole.  I don't see
> these pins moving appreciably, certainly not enough to hit the plate.
> Regards,

It's not how many times a year you look, it's how many seasonal extremes 
they've been through. I don't understand why the concept of wood under 
compression crushing cumulatively with big humidity cycles is such a 
tough concept.
Ron N