Capo Hardening, was: Tuning problems under capo bar

Ron Overs sec@overspianos.com.au
Sun, 26 Jan 2003 10:53:36 +1100


At 6:28 PM -0500 24/1/03, Farrell wrote:

>Hello Ron. I there anything you can tell us about hardening the capo.

Yes but unfortunately I am not prepared to publish it on the list, 
since I'm not prepared to hand a process to the major manufacturers 
'on a plate'.

>I've seen you write about that before. Is this something you do in your shop?

Yes, and its a routine procedure that we've been using on all 
rebuilds since 1995.

>Do you do it to all pianos? Do you have a method of testing the 
>hardness of the capo?

I use a piano wire off cut, holding it perpendicular to the bar an 
hitting the wire with a hammer to check relative deformation between 
the bar and the wire (obviously this test is done at the ends of the 
bars and not where the strings contact the bar).

Ron O.
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