Touchweight

[Ted Simmons]

I attended a class by Kent Webb at one of the conventions.  In fact I
attended his class twice, that's how good it was.  Anyhow, his method is
summarized in the October, 1993 PTJ on page 18.

Ted Simmons

>> >In a message dated 8/22/99 5:26:55 PM !!!First Boot!!!, ted@brevard.net
>> >writes:
>> >
>> ><< However, when I
>> > returned the action to the piano and secured the cheek blocks some of the
>> > hammers failed to go into check on a light blow.   They just hung there in
>> > about drop position.  This would definitely be felt as a heavy touch.  This
>> > action rests on its rails; it does not have glides.  To correct this I
>> > added a little more key dip and that took care of the problem.  I guess
>> > this is a good example where bench regulation isn't always the most
>> > accurate method.
>> >
>> > Ted Simmons >>
>
>You mentioned you checked touchweight and all your samples fell within
>acceptable
>parameters. I am wondering, how do you test for touchweight. Do you at the same
>time figure the friction of the action with these values ?
>
>>From what I get from your post, it seems like you got something close to
>>negative
>drop when you put the action back in the piano, and attributed the "heavy"
>touch
>feel to that. If this is the case, I am not sure I would call that heavy
>(feeling
>wise) as much as I would think along the lines of an "empty bottoming" or
>something like that. In any case you wouldnt feel this "heaviness" as you
>call it
>until after you reach letoff.. Is this what you are refering too?  I can
>see how
>the lack of ability to get through letoff could be thought of as
>heaviness, but I
>think I would use another term.
>
>Richard Brekne
>I.C.P.T.G.  N.P.T.F.
>Bergen, Norway