[pianotech] Downbearing

[William Monroe]

Yeah, me too.  I've an "O" that is out for refinishing at the moment in 
which this is the case.  It has every scenario.  Very little bearing to 
start with, some places negative front, positive rear, others the reverse. 
I wouldn't shoot for that, but in this case, it is working well.

I figured those extra feet on the Wixey weren't just pointers to tell you 
which way was forward.  ;-]

William R. Monroe

> William Monroe wrote:
>> I suppose I can see the argument for not loosing sleep over front and 
>> back not being exactly equal, but my concern is more for something like 
>> Frank described, and similar but not so severe cases.  I think it is of 
>> practical importance to assure myself that there isn't anything 
>> ridiculous going on front to back, making sure any net bearing reading is 
>> meaningful.  In other words, net bearing, but not in a vacuum.  I'm not 
>> suggesting you don't look at other parameters here, Ron, just wanted to 
>> make explicit my thinking.
>
> Gotcha. Sure, I look at component bearing too, hence the narrow set of 
> feet on my Wixey base, I'm just not concerned if the angles aren't equal. 
> I have measured negative rear bearing angles in the field, in pianos that 
> sounded quite nice, incidentally.
> Ron N
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