Balance Rail Felt Punching Theory

[Delwin D Fandrich]

Check my Journal articles on piano action efficiency.

Del

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----- Original Message -----
From: "Farrell" <mfarrel2@tampabay.rr.com>
To: <pianotech@ptg.org>
Sent: November 16, 2000 7:59 AM
Subject: Balance Rail Felt Punching Theory


> Hi List. I have been victim to "Balance Rail Felt Punching Compression"
> disease. Why are there 5 thicknesses available? Seems to me the thicker
ones
> will compress more over time, resulting in all the familiar problems of
> shallow dip and mid-keyboard trough. Why not just always use the thin
felts
> and just use an appropriately thick cardboard punching to make up the
> difference when the original was a thicker felt punching? What are the
> advantages/disadvantages in doing this?
>
> Terry Farrell
> Piano Tuning & Service
> Tampa, Florida
> mfarrel2@tampabay.rr.com
>