Bridge pattern material

[David Chadwick]

It's a little 5' 1" Knabe. The owner had in in their horse barn for 15 years in the Arizona desert. Sentimental value, money no object. No trace of serial number but it should be somewhere on the treble plate side underneath the regold. I'll include some photo's of the pinblock. WOW!  I'll check out your plastics reference Dale and Dean's suggestion for the drafters supplies stores. I had pondered David's idea of having the scale design calculated. I know this has been discussed on the list before so I need to research and find who can help me with this..... Any suggestions who? I'm not seeing anyone in the PTG directory.  I'll be in Anaheim for sure! Thanks to everyone!  

David Chadwick 
Las Vegas, Nevada
chadwick61 at cox.net

  ----- Original Message ----- 
  From: erwinspiano at aol.com 
  To: pianotech at ptg.org 
  Sent: Monday, February 25, 2008 6:31 PM
  Subject: Re: Bridge pattern material


    HEy Dave
    Impressive bridge cracks.  I have used 10 mil mylar for years & it's a very good material. relatively stiff.  I am however in the process of changing over to the David Hughes method of permanent Plexiglas master patterns.... for the pianos we do commonly...let's see....which ones are those?  For everything else 10 Mylar is fine. 5 mil  I find too flimsy.
    Check Plastics 2000 or other plastics store.  You may need to  order in bulk but sometimes they have rolls they can cut off of.
    Dale Erwin


  -----Original Message-----
  From: David Chadwick <chadwick61 at cox.net>
  To: pianotech <pianotech at ptg.org>
  Sent: Mon, 25 Feb 2008 4:47 pm
  Subject: Bridge pattern material


  Greetings, 
  I'm attempting my fist soundboard replacement a la Bolduc and I'm looking for some Mylar to make the hole pattern in the bridges. I've been to arts n crafts stores, office supplies and the big orange builders store (you know the one) and all I can find is a 8x11 sheet product. Apparently I can get this in a roll, as explained on the Bolduc soundboard replacement video with Christian Bolduc, but what kind of supplier has this stuff. Even been to a paper specialty shop but no luck. Any help would be greatly appreciated! 

  David C. 


  [Image Removed] 


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