[CAUT] Underlever Felt

Jon Page jonpage at comcast.net
Mon Aug 24 17:40:55 MDT 2009


>>"can be finessed individually on reinstallation"
>>
>What does that mean...


Each damper fitted to the strings with more precision
than some factories allow. It starts with a firm, frictionless
bushing hold and then bending the wire such that the
damper moves in a straight, vertical path with the wire
also falling into the top flange unencumbered by
misalignment causing stress on the underlever and
guide rail bushings.

Having to rely on side pressure on the bushings to dampen
the wire is counter productive. Time saving maybe but not
beneficial in the long run or for performance.

Having the head centered over the unison.

Cutting the center slice deeper on trichords to allow full
insertion/contact and a slight billowing. Cutting the trichord felt
just below the strings and trimming the leading edges of the
felt to reduce drag.

Trimming the outside lower corners of the singles if they are
showing signs of being pressed out to rub against the
adjacent damper felt.

Before all this was cutting the felt, graduating the length smaller
as you go up the scale and gluing in place. Also graduated
assist spring tension.

It's all rather simple if you just take the time and price the job accordingly.

Then you could also just install the dampers in a wholesale manner
and hope for the best.

Regards,

Jon Page
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