Caster repair

[John Ross]

Thanks, Roger.
I had wondered, if a 3" would do it, when I was thinking of using a hole saw.
John M. Ross
Windsor, Nova Scotia, Canada
jrpiano at win.eastlink.ca
  ----- Original Message ----- 
  From: Roger Jolly 
  To: Pianotech List 
  Sent: Thursday, September 28, 2006 11:39 PM
  Subject: Re: Caster repair



  Hi John,
                Here's how we do it, with a Forsner bit.

  We cut two pieces of 5" square 3/4" thick plywood, and glued them together.
  Take a 3" Forsner bit and drill a hole through the wooden template.
  Tack the template with two 2 1/2" nails to the toe blocks so it is centred over the old holes.  The Forsner bit will now cut safely without chattering.
  Use the template to guide the bit as it drills out that nasty shaped hole.  
  This will also work with some Spur bits.

  Regards Roger

   

    What is the preferred method of enlarging the cavity???
     

    John M. Ross
    Windsor, Nova Scotia, Canada



-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://www.moypiano.com/ptg/pianotech.php/attachments/20060929/8a47ba0b/attachment.html