Question re: Bridge Pins

Richard Brekne Richard.Brekne@grieg.uib.no
Sun, 08 Dec 2002 13:20:04 +0100


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Please get your quotes correct Ron.

Ron Overs wrote:

> Ric B wrote:
>
> >.... seems to me tho...that if you
> >could avoid the side bearing whilst maintaining the solid contact on the
> >bridge.....
>
> Wayne Stuart carries on about the negative effects of side bearing
> effecting the tone. But I don't believe it.

Sarah Fox wrote this :

> >I've always wondered about that.  I would presume the slant of the bridge
> >pins and the severe angle of the string between pins is intended to keep the
> >string pressed firmly to the top surface of the bridge, but wouldn't the
> >downbearing already achieve that?
>
> Not sufficiently, some offset angle, whether it be horizontal or
> vertical, is necessary to prevent falseness. I know this first hand
> because I have built a bridge with insufficient side draft angle,
> through a spreadsheet formula error. The tone was a disaster until
> the bridge was recapped. Of course an alternative engineering
> solution could be employed, but it wouldn't be as cheap.
>

And this as well..

>
> >What would happen if a string were passed straight over the bridge without
> >pins, like on a violin?  What would happen?  How would it sound?
>
> Very ordinary. While this area of string termination warrants further
> study, some offset or an alternative solid termination is necessary
> for clean tone.
>
> By the way list folks, does anybody have an email address for
> John-Paul Williams, who teaches piano technology at the London City
> and Guilds piano technology course. I would like to contact him.
>
> Ron O.
> --
> ___

--
Richard Brekne
RPT, N.P.T.F.
UiB, Bergen, Norway
mailto:rbrekne@broadpark.no
http://home.broadpark.no/~rbrekne/ricmain.html


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