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· Distinguished SOTW Member/Forum Contributor 2008
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Discussion Starter · #1 ·
PlastiDip. First fix with this Shooting Star, I experimented by dipping the badly compressed cork in PlastiDip. Inadvertently, the inside of the tube gets coated too. It worked great and I went on to fix a few other things. I decided it needed another coat but it messed up so I ripped it all off and went back to teflon tape. Thanks to the "Re:acoustics" thread about the neck insert, I remembered there was no warble with the PlastiDip coating. I redipped today and warble gone. Intonation good. Sounds more focused too.
 

· Forum Contributor 2016, Distinguished SOTW Member
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PlastiDip. First fix with this Shooting Star, I experimented by dipping the badly compressed cork in PlastiDip. Inadvertently, the inside of the tube gets coated too. It worked great and I went on to fix a few other things. I decided it needed another coat but it messed up so I ripped it all off and went back to teflon tape. Thanks to the "Re:acoustics" thread about the neck insert, I remembered there was no warble with the PlastiDip coating. I redipped today and warble gone. Intonation good. Sounds more focused too.
So, by reducing the inside diameter of the neck it got rid of the warble?
 

· Distinguished SOTW Member/Forum Contributor 2008
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Discussion Starter · #4 ·
Black color so it looks okay and I think it comes in white at Home Depot. The stuff is weird to work with and you don't want to ruin a good cork.
Yes Sir, coating the inside diameter (about an inch} on this saxophone worked. Not so sure why. Results may vary but could be a lucky find?
 

· Distinguished SOTW Member, Forum Contributor 2016
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Interesting fix. 16M ? They usually don't warble, matter of fact quite unusual. You had it professionally checked for leaks first, yes ?

I remember that stuff, it's kinda cool but I recall it having a sorta rubber smell once set....
 

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My study of a warble on low C on a C-melody showed that the oscillation was caused by out of tune harmonics fighting to control what Benade calls the "regime of oscillation". The out of tune harmonics called "inharmonicity" can be caused by a less than ideal "taper". It is quite possible that changing the diameter inside the opening of the neck changes the taper enough to correct the inharmonicity causing the warble.
 

· Distinguished SOTW Member/Forum Contributor 2008
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Discussion Starter · #8 ·
Indeed I still have issues with this beast and it has been some years since I have played so there is that. Just a DIY guy but I have however been able to bring several junk horns to life including a complete repad so I'm not some mope. Thanks Saxoclese for the scientific validation. Made my day.
 

· Distinguished SOTW Member, Forum Contributor 2015-
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Indeed I still have issues with this beast and it has been some years since I have played so there is that. Just a DIY guy but I have however been able to bring several junk horns to life including a complete repad so I'm not some mope. Thanks Saxoclese for the scientific validation. Made my day.
Please clarify - did you leave the Plastisol inside the neck? Have you tried the neck with only correcting the leak on the mouthpiece cork?
 

· Distinguished SOTW Member/Forum Contributor 2008
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Discussion Starter · #11 ·
The live thread "Inside shape small end of neck in Acoustics" is where I learned this. Sorry for not stating that better. Dr G You must be kidding or didn't bother to read the thread
 

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The live thread "Inside shape small end of neck in Acoustics" is where I learned this. Sorry for not stating that better. Dr G You must be kidding or didn't bother to read the thread
No, not kidding. I am a scientist, and prefer to perform good experiments. From your original post in this thread, it was not apparent that you separated competing variables that could cause your warble. I am still not convinced whether the solution to your problem was provided by a better seal on the outside of the neck, or by altering the inner geometry.
 

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Discussion Starter · #13 ·
So you think I wouldn't know enough to work with a good seal on the cork all along. Not trying to prove anything here, too many variables, just sharing my experience. Done.
 

· Forum Contributor 2016, Distinguished SOTW Member
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PlastiDip. First fix with this Shooting Star, I experimented by dipping the badly compressed cork in PlastiDip. Inadvertently, the inside of the tube gets coated too. It worked great and I went on to fix a few other things. I decided it needed another coat but it messed up so I ripped it all off and went back to teflon tape. Thanks to the "Re:acoustics" thread about the neck insert, I remembered there was no warble with the PlastiDip coating. I redipped today and warble gone. Intonation good. Sounds more focused too.
Question, what was your goal in dipping a badly compressed cork in the Plastidip? Why not just replace the cork?
 

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I think that using liquid paint to replace a cork (by the way you only need a bit of a cork or plastic into the pipe in order to prevent it going inside and altering the volume) is a great idea, I am not sure about any other use in this context.

since this is highly probabe

Or it got rid of the leaks from an ill-fitting cork.
on a side line

We need a "like" button.
we really don't ( and we have discussed this and arrived to that conclusion) since that would simply result in a plethora of clicks without any content other than the " like", we have always encouraged people into the writing their articulated opinion ( if you like something you can also tell us why and how) rather than saying nothing and having a counter which would simply make one look one member better than the rest (this is not a popularity contest where one is voted popular but a forum where, by definition and own nature we discuss things which, to me, imply voicing an articulated opinion).

A " like" function will also transform itself in an inflammatory device when there is any controversy splitting the membership among likes and dislikes and we don't need any of that at the push of a button.

As you can see you can add you opinion as a symbol and as I am doing with my answer here you can add a thumb up or down or other stuff available by simply go advanced in your answer, qualify what you like and offer a thumb up (or down) or something else
 

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Conn NW II Soprano, NW I Alto, 10M Tenor, NW I C Melody & Allora Bari.
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We need a "like" button.
we really don';t ( and we have discussed this and arrived to that conclusion) since that would simply result in a plethora of clicks without any content other than the " like", we have always encouraged people into the writing their articulated opinion ( if you like something you can also tell us why and how) rather than saying nothing and having a counter which would simply make one look one member better than the rest (this is not a popularity contest). It will also transform itself in an inflammatory device when there is any controversy splitting the membership among likes and dislikes and we don';t need any of that at the push of a button.

As you can see you can add you opinion and as I am doing with my answer here you can add a thumb up or down or other stuff by simply go advanced in your answer, qualify what you like and offer a thumb up (or down)
How do you know there is going to be a "plethora" of clicks without any content?

Another forum I'm on, added the "like" feature a few years ago. Some posts are just so well articulated that a simple "like" is appropriate. Other times it may deserve a "like" and a comment. It also gives the author of the post instant feed back. And I haven't noticed a decline in participation.

As far as the OP goes....

I'm not putting Plasti Dip on or in my saxophone!

On the Conn Saxophones I have, they don't warble unless there is a leak somewhere.
 
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