Source for spring stock?

[Dean May]

So tell us what kind of wire you use, John. 

 

Floyd, you might also think about looking for an existing stock set of
springs that could be modified to fit your needs. I've done that and it was
pretty easy. 

 

Dean

Dean May             cell 812.239.3359 

PianoRebuilders.com   812.235.5272 

Terre Haute IN  47802

  _____  

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of John Delacour
Sent: Monday, December 24, 2007 3:33 AM
To: fg at floydgadd.com; Pianotech List
Subject: Re: Source for spring stock?

 

At 18:52 -0600 23/12/07, Floyd Gadd wrote:

 

...The tail of the spring is threaded through the butt, coming out the side,
if I remember correctly, and then being secured in some kind of slot.

The problem has been finding an appropriate set of replacement springs.

 

I'd suggest you take up David Boyce's kind offer.  You need, as he said, to
specify a left-handed or right-handed coil and you also have the choice of
7/8" or 3/4".

 

At 21:32 -0500 23/12/07, Jon Page wrote:

I think springs for hammer butts and wippen assist are made from Beryllium.

 

Beryllium Copper, you mean.  In the past, these springs were made of brass
spring wire, sometimes nickel plated, but now they are usually of
phosphor-bronze, the same stuff supplied at exorbitant prices to harpsichord
people for strings that were formerly of brass.

 

At 18:52 -0600 23/12/07, Floyd Gadd wrote:

I have Schaff's spring making tool, and could make the springs if I had the

right stock to work with.

 

All you need for making springs is a block of wood and some centre-pins,
nails or screws.  Here is the tool I'm using for a set of butt springs I
have to make this week.  I has a length of dowelling underneath to turn the
block.

 

 

 

 



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