tearing bushing cloth

William R. Monroe pianotech at a440piano.net
Sun Jul 1 20:26:31 MDT 2007


He, he,

Yup, going to, and did.  Job is done, and I first refinished the rails in 
shellac, then sized the holes with alcohol/water.  Really, it is too easy 
(thanks, Ron).

I must admit, I didn't actually give any of the bushings a tug afterwards. 
I figure that the adhesion is really only necessary to prevent errant 
replacement of a single damper (done it) or some such in the future. 
However, since the process was so simple (it is) why not have a little 
(easily undone) adhesion to keep the bushings in to prevent headaches at an 
inconvenient time.

Maybe I'll give 'em a check when I in the shop again (a couple days).



> Yes, that is what I generally experience - the first piece doesn't tear 
> square with the big piece, but subsequent pieces will tear parallel with 
> the first. So tear away!
>
> If you are doing a damper guide rail, are you going to use the approach 
> described by Ron Nossaman for felt-to-wood adhesion? Did you save that 
> post?
>
> Terry Farrell
>
> ----- Original Message ----- 
>> So I've always used pre-cut felt for damper guide rail bushing.  Decided 
>> to "do the right thing" and tear it from the bolt.
>>
>> Y'know that sick feeling in your gut, like when you're polishing a just 
>> installed set of keytops and you melt one?
>>
>> Well, I went to make the first tear, and, ugh.  Felt sick.  A big piece 
>> of bushing cloth is not cheap, and that first tear went at an angle.  I 
>> tore fairly quickly, thinking it proper, and over the course of about 
>> 30cm, the cloth went from about 9mm wide to about 17mm wide.
>>
>> What did I do wrong???  Or is there a bias to the material that you can't 
>> discover until you tear the first strip?  Then, do the following strips 
>> tear straight?
>>
>> Thanks for your advice.
>>
>> William R. Monroe




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