[pianotech] Fw: 4 pictures for you

[Tom Driscoll]

Ron,
 Mine eyes have been opened !
In my Dean Garten inspired Spa treatment for the Piano I  bed the frame and 
adjust glides with the action stack on, and the keys removed . Others might 
have a different method, but with the keys out I can thump  away on rails 
and be more sure of solid contact to the bed . If the dang thing had a slot 
cut in the top of the stud I could still adjust from the top but for the few 
minutes it takes to adjust the glide from the bottom any retrofit is 
probably more trouble than it's worth.
 The reasoning for this was escaping me -- until now .
 Thanks ,
 Tom D


> Tom Driscoll wrote:
>>  I have a question about the glides on this Kawai keyframe. The second 
>> glide from the bass end has no adjustment screw on the top and is shaped 
>> different from the others underneath. I've seen this set up on other 
>> Kawai frames, most recently on a Boston grand made by Kawai.
>> In order to adjust that glide the keyframe has to pulled and it is 
>> adjusted from below . It takes a few tries to get it right   but I just 
>> can't figure out the logic  on why this one glide is different from the 
>> others. Ideas?
>> Tom D.
>
> Tom,
> I see a glide positioned where one proved to be necessary long past the 
> initial scale design phase. Since it didn't happen to fall in a scale 
> break, there wasn't really room for it to be accessible from the top 
> without whacking out most of the (x2) adjacent keys' width at the buttons, 
> they did the plan B underside adjustment special. I see the available 
> options as: leave it alone (though it's not a marketing imperative to 
> claim it as a feature, any more than it's in need of a manufacturer's 
> excuse), or inlay a piece of maple in the key frame and put a glide bolt 
> in the key bed, adjustable from underneath. As often as glide bolt 
> adjustment is necessary in real world service, option #1 remains a viable 
> category one option on my list here. It's a pain in the butt, but not a 
> particularly frequent one.
>
> Them what builds things don't always anticipate all the problems and 
> opportunities for niceties during the process, that manifest so clearly 
> and obviously after the fact.
>
> Ron N
>