geometry/friction

Horace Greeley horace@compadept.com
Thu, 01 Feb 1996 19:42:21 -0800


At 12:26 PM 2/1/96 -0700, you wrote:
>At 12:37 PM 1/23/96 -0700, stanwood wrote:
>>
>>Another factor to consider is effeciency of the coinciding arcs:
>>
>>
>>2. The knuckle/jack contact point is purposefully out of align to create
>>ineffeciency which expresses itself as friction which is built in for a
>>feeling of control.  If the spread distance and orientation is normal the
>>above figures will work best as QUIDELINES.
>>
>___________________
>
>
>If this bit of geometric detail regarding the knuckle/jack contact point is
>so brilliant, than why are we compelled to be so liberal with the dry
>teflon powder?
>
>I suggest it is because the heavier parts on modern pianos have created a
>problem where previously none existed.
>


Dennis,

There you go, thinking again...

Horace

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Horace Greeley, RPT                       14 Pyxie Lane
Piano Technician & Consultant             San Carlos, CA 94070-1506
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