Changing roller size.

JIMRPT@AOL.COM JIMRPT@AOL.COM
Fri, 1 Sep 2000 09:45:52 EDT


In a message dated 9/01/2000 9:23:33 AM, Jon wrote:

<<"Also a smaller knuckle would have the jack clearing it sooner due to its 
diminished radius.
With this decreased connection period, will it affect the dynamic control?">>

Jon;
 Logical thought won't work here :-)
The knuckle size will not affect the letoff point in any way. While your 
postualtion is correct if the let off is not adjusted to the smaller knuckle 
size, it would be incorrect if the let off point is adjusted to accommodate 
the smaller knuckle. The smaller knuckle would cause there to be more 
relative movement within the action/key parts and although such 'increased' 
relative movement would be very small it 'could' have substantial effects on 
the action/keybed.

'Some' areas a smaller knuckle would affect are:
Key dip, aftertouch, jack escapment, capstan height, backchecking and 
repetition speed. I am sure there are more but....................
Just my thoughts.
Jim Bryant (FL)

 


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