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 Re: sticking octave key
Author: Chris P 
Date:   2021-04-04 00:48

If it's binding between the pillars, then it will need to be dealt with to prevent that happening. Fraising back the key barrel by just enough to free up the key will indeed allow some lateral play, but that lateral play is necessary and has to be factored in to prevent it binding up again. Metal and wood (and metal and plastic) just don't mix.

All cross mounted keys on wooden oboes need some lateral play between their pillars to ensure they don't bind up. If that isn't done, then you'll have trouble. And once fraised back, the ends of the key barrels will also benefit from the inside edges being slightly countersunk.

On plastic instruments, all keys will need to have lateral play relative to the lengths of the key barrels to ensure they'll work when cold as plastic moves in all directions - long leys are the ones most affected by temperature changes and will need the most lateral play otherwise they'll bind up solid when played in cold conditions.

Chris.

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 Topics Author  Date
 sticking octave key  new
EaubeauHorn 2021-04-02 20:51 
 Re: sticking octave key  new
Hotboy 2021-04-02 21:52 
 Re: sticking octave key  new
Hotboy 2021-04-02 21:54 
 Re: sticking octave key  new
Chris P 2021-04-02 22:34 
 Re: sticking octave key  new
gohpeds 2021-04-03 23:00 
 Re: sticking octave key  new
Chris P 2021-04-04 00:48 


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