Open face vs. closed face pin blocks

larudee@pacbell.net larudee@pacbell.net
Mon, 13 Aug 2001 16:28:19 -0700


Delwin D Fandrich wrote:

> > Are there any other performance or design considerations that might lead
> > manufacturers away from open face blocks?
>
> Tradition, certainly. Steinway did it that way back in the 1860s and 1870s
> so it must be the right thing to do.

That's more along the lines that I was thinking.  Perhaps a selling point at the
time, like string length nowadays.

> I am not aware of any performance or design benefits to the closed-block
> system. I would guess that the closed-block system is now some cheaper for
> most manufacturers. Especially if they depend on pin/pinbushing contact for
> support. Pinblock-to-flange is a sometime thing for most modern
> manufacturers and CNC machinery can handle either with equal aplomb.
>
> In favor of the open-face design is ease of tuning and, when properly
> designed and fabricated, somewhat improved tuning stability.
>
> Del

Amen.

Paul



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