Rib Alignment/Installation

[Farrell]

Thanks for the info Dave. Did the dowel go completely through or partially through the rib and the panel? I'm in the process of using a combination of carpet tacks and bridge pins, but I'd like a full cache of ammunition. 

Terry Farrell
  
----- Original Message ----- 
From: "Dave Nereson" <dnereson@dim.com>
To: "Pianotech" <pianotech@ptg.org>
Sent: Tuesday, April 22, 2003 5:17 AM
Subject: Re: Rib Alignment/Installation



  ----- Original Message ----- 
  From: Farrell 
  To: pianotech@ptg.org 
  Sent: Sunday, April 13, 2003 7:59 PM
  Subject: Rib Alignment/Installation


  I've got 15 spruce ribs and a spruce panel. Now how do I get the ribs onto the panel in the right spot? The only thing I can think of is to either put a small tack through the rib bottom in the notch area and then lay the panel into its proper position and push down so that the tack that is sticking up through the rib top makes an indent in the bottom of the panel. Or I could drill a very small hole through the panel and through the rib in the notch and locate the rib with a toothpick or a center pin. I think I will need something like that to keep the rib from skating around during glue-up to the panel anyway.

  How have others done this? Thanks.

  Terry Farrell
    
  _______________________________________________
  pianotech list info: https://www.moypiano.com/resources/#archives

  The Denver and Boulder chapters just had a joint meeting at Joe Woods' rebuilding shop and the technical demonstration for the evening was gluing new ribs onto a new board, using a pneumatic rib press.  To keep the ribs from sliding about when pressure is applied, the ends of the ribs were doweled to the soundboard with hammershank dowels, about an inch in from the edge of the board.  
      --David Nereson, RPT, Denver