[CAUT] sanding let-off punchings

Fred Sturm fssturm at unm.edu
Fri Aug 22 16:20:48 MDT 2008


I guess I should have mentioned, stack "upside down" on the bench.  
Hammers and flange screws contacting the bench, wipp cushions up.  
Letoff button felts facing up.
Regards,
Fred Sturm
University of New Mexico
fssturm at unm.edu



On Aug 22, 2008, at 3:40 PM, Fred Sturm wrote:

> 	It's nice when the letoff rail can be removed. Makes for easier  
> access. (I do remove them on uprights, when I go to that trouble).
> 	I made little wooden sanding paddles the width (plus a little) of  
> the buttons, for individual ones that are out of line with the  
> others. Popsicle sticks are about right. Nail files (with rough  
> garnet grit or the like) are a little flimsy but can work. Where  
> possible (meaning the bulk of the buttons are pretty much level with  
> one another), I gang file, using those metal flexible paddles from  
> Pianotek (PermaGrit, I think is the brand). So I go over a section  
> with the metal paddle, then touch up the ones I didn't quite reach  
> with the little wooden paddle.
> 	Same kind of thing ironing them: use the full clothes iron over the  
> whole section, then touch up using just the tip on the ones that are  
> out of line. Or use a keybushing broach in a heat controlled  
> soldering iron. DO pay attention to the angle. It's easy to iron  
> them all "off-parallel" (How would I know? <G>) Not a good thing.  
> Kind of defeats the whole purpose, and turns it into a cam effect.
> Regards,
> Fred Sturm
> University of New Mexico
> fssturm at unm.edu
>
>
>
> On Aug 22, 2008, at 3:09 PM, reggaepass at aol.com wrote:
>
>> Fred (& List),
>>
>> I like your idea of sanding the impression made by the jack out of  
>> the cloth punching on the let-off button.  However, I have yet to  
>> come up with an efficacious way to do it .  Please be so kind as to  
>> share the details of your procedure with me and the list.
>>
>> Many thanks,
>>
>> Alan Eder
>>
>>
>>
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>

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