Roller Size, again

[Jon Page]

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At 08:37 PM 09/10/2000 -0400, you wrote:
>Not to belabor all this roller stuff, but........are you measuring the 
>knuckle height while it is mounted in the shank? If so, I wonder if some 
>of your variation is coming from the depth of the slot in the shank that 
>the knuckle core mounts in. OR, I may simply not have a clue as to 
>what/how you are measuring and you should just ignore this note.
>
>Terry Farrell

Yes, I measured knuckles which were installed on shanks. True, the slots 
may be different lengths but
my money is on the core length. I'll be getting into the knuckle resetting 
tomorrow.

Regards,

Jon page


>>----- Original Message -----
>>From: <mailto:jonpage@mediaone.net>Jon Page
>>To: <mailto:pianotech@ptg.org>pianotech@ptg.org
>>Sent: Sunday, September 10, 2000 5:31 PM
>>Subject: Re: Roller Size, again
>>
>>At 09:53 PM 09/10/2000 +1000, you wrote:
>>Ron,
>>Thanks for reiterating on the lower friction effect from a smaller knuckle.
>>I should have gone into greater detail in my response but was pressed for 
>>time
>>and figured your statement would be remembered and just left it at 'lower 
>>friction'.
>>
>>I still have the shanks separated in regards to roller height and will 
>>get someone on it tomorrow.
>>I would imagine there is a tolerance granted for sanity purposes. As this 
>>is my first encounter
>>with close examination of this height.  I will maintain a 0.010 window 
>>(+/- .005 from average height,
>>this set's average is .645; so .640 to .650, it might get tighter as the 
>>work progresses). I included
>>the thickness of the shank assuming that the shanks are uniform because I 
>>only have a thickness
>>gauge and not a height gauge. I'll check the shanks' thicknesses tomorrow.
>>Tolerance suggestions welcome.
>>
>>It's always something . . .
>>
>>Regards,
>>Jon Page,   piano technician
>>Harwich Port, Cape Cod, Mass.
>>mailto:jonpage@mediaone.net
>>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Jon Page,   piano technician
Harwich Port, Cape Cod, Mass.
mailto:jonpage@mediaone.net
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
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