Doweled and Fully Fit Pinblocks

[Fenton Murray]

Man oh man,
It's good to be in school. Michael Spreeman clued me in as well, so my thanks to him are ditto to you too, Will. Can't wait to do it. What is obvious to some is unknown to others. Like the spirit cap removal. Great belly info on the list right now.
Fenton
  ----- Original Message ----- 
  From: Will Truitt 
  To: 'Pianotech List' 
  Sent: Sunday, August 03, 2008 3:36 PM
  Subject: RE: Doweled and Fully Fit Pinblocks


  Ah, Fenton there is a good way to do this and get it very snug without munging up the sides of the case.   Fully fit the pinblock as you would in your usual fashion for fit to the stretcher and treble end.  I then cut the bass end short by about ½ inch  (the exact amount doesn't really matter).  Set the block in the piano and butt it up against the treble end and stretcher.  Measure the gap to the bass end rim.  Cut a fill piece of pinblock stock to that measure, but with a 1 degree taper, so that it is narrower at the bottom than the top.  Do a partial dry fit (you need to be able to get it out again).  Sometimes I need to feather it down on my table belt sander until it is just right.  When you are ready to glue the block in, butter it with glue and tap it in place.  It should seat on the ledge and look like it belongs there.  Voila, your fully fitted block and intact case sides.

   

  I would love  to take credit for this to prove how smart I am, but it is a trick that I learned from Chris Robinson years ago.  I fully fit any block that the case and plate allow, and this has long been my practice.  

   

  Will Truitt

   

  From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Fenton Murray
  Sent: Sunday, August 03, 2008 4:34 PM
  To: Pianotech List
  Subject: Re: Doweled and Fully Fit Pinblocks

   

  List,

  Of all the contact and glue surfaces of the full fit block certainly the ones with the least structural significance must be the end grain glue joint at the rim. In many woodworking aplications this is left to float, but not in the wooden fortress circle of sound. I enjoy attempting to fit all of these joints as well as I can if for no other reason than to be able to look under the plate and see something that looks like it did 100 years ago. But this end joint is about the hardest to nail, even when attained it's impossible to get into the piano. So, I inevetably slip in the veneer at the end which always seems difficult and messy to do and never looks quite right. I do under cut the ends slightly.

  I would love to read procedures for nailing this left, right, tight at both ends fit. It is, after all one that can be seen by every one.

  Fenton
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