[CAUT] Bushing cloth thickness

[A440A at aol.com]

> I wrote: 
> .162"cauls, and stock cloth, I do very little easing.   I find that putting 
> cauls
>  in that are about .015" bigger than the pins gives me the right amount of 
> clearance. 
> 
> John writes: 
> Must be something in the branch water down there because for .145 f/r pins
>  I use a .147 caul in the summer and .152 caul in the winter to accommodate
>  for seasonal humidity swings.
> 
> The use of heated cauls, and the KBI may account for the difference.   I 
don't like to heat the felt, since that kinks the fibers and hardens it.   These 
bushings are quite loose when I pull   the larger, cold cauls out, but within a 
day or so, they have returned to their normal dimension and the keys feel 
great.   I bush fairly tightly here at the school, since within a semester, 
everybody has clearance. 

regards, 


Ed Foote RPT



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