[pianotech] pin Driving Fluid - was hybrid pinblocks

[Gene Nelson]

Ed,
My sample blocks are only 5/8" thick so the pins are much longer than the block sample is thick. I suppose the measure could be explained as how much pin is driven past a fixed point, or how many pin threads are driven through 5/8" of bock - not certain how else to explain.
Gene
  ----- Original Message ----- 
  From: Ed Foote 
  To: pianotech at ptg.org 
  Sent: Thursday, February 18, 2010 8:02 AM
  Subject: Re: [pianotech] pin Driving Fluid - was hybrid pinblocks


  Gene writes: 

    In each sample the pins that had been driven more were noticably looser than the pins that had been driven less. 


  Maybe I am misunderstanding this, but I gotta ask, how are you driving the pins?  I haven't had the experience that a lower torque results from greater depth in the block. In fact, mine is just the opposite. 
  Regards, 

  Ed Foote RPT
  http://www.uk-piano.org/edfoote/index.html


    
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