[pianotech] Damper Spring Cord

Byeway222 at aol.com Byeway222 at aol.com
Sat Feb 13 06:18:22 MST 2010


To create a stiff  'needle' on the end of spring cord using thin CA  glue, 
my method is this:-
 
1) Pull back the sheath material and remove about 2 inches of the core  
strands.  
 
2) Secure the end of the cord in the side of a small bench vice and pull as 
 tight as you can without the cord breaking.  This will automatically 
create  a perfectly round shape.
 
3) Still holding as tightly as possibe slowly soak the cord with thin  CA.  
I find it best to apply the nozzle along the cord and just gently and  
evenly apply enough thin CA to impregnate it.    Keep pulling the cord tight 
until the CA has gone off.  One  minute?   Take the cord out of the vice and 
merely trim the end.
 
4) You will then have a very stiff and thin 'glass needle'  which will  go 
through even the smallest hole.
 
You may find that the cord will smoke slightly as you apply the glue.   It 
is best to do a practise run just to make sure you are not using too much  
glue.
 
ric
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