[CAUT] wacky backchecks and Knabe blow distance

[Keith Roberts]

Are you talking blow distance as a function of dip/action ratio or clearance
above the hammer rest rail? Bore distance will solve the latter.

Keith Roberts


On 10/15/07, Barbara Richmond <piano57 at insightbb.com> wrote:
>
>  Sorry Jon Page, I'm going to post to both lists.
>
> Speaking of wacky backchecks--no I didn't do this--but have put the new
> action in and am roughing things in (pay no attention to that hammer line, I
> decided the sharp key height had to come up a bit.  I have some sample notes
> set and really need to fix these backchecks before continuing--but first...
>
> Has anyone worked on a 5'8" or so Knabe grand (late 1920s) where it was
> difficult to get 1 3/4" blow distance?  Is it <normal> (for this age, model,
> whatever), more or less, to have to go a bit narrower, like 1 5/8"?
>
> This is the first time I've worked on a piano that was this screwed up.
> I've learned a lot.  :-)
>
> Barbara Richmond, RPT
> near Peoria, Illinois
>
>
>
>
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