[CAUT] wacky backchecks and Knabe blow distance

[Barbara Richmond]

Thanks, Keith.

This is the first time I've worked on a grand that seemed to call for 1 5/8."  It just seemed weird.  I've talked with a couple friends and they assured me that I've lived a very protected life.  :-)

Barbara Richmond
  ----- Original Message ----- 
  From: Keith Roberts 
  To: College and University Technicians 
  Sent: Monday, October 15, 2007 2:50 PM
  Subject: Re: [CAUT] wacky backchecks and Knabe blow distance


  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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