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Re: Barrel/Upper joint tenon too tight

Author: clarnibass
Date: 2019-02-28 11:56

>> The explanation is that when Buffet (notoriously so in their finishing process) trimmed the cork, a burr was created in the wood just at the line that is the bottom of the cork. <<

That's almost never the reason for it. In theory, a burr created from trimming the cork is extremely unlikely to cause it. It is too small. In practice, 100% of the cases I've seen had a significant amount of the shoulder length causing it, not just the thin place where it touches the cork. I've seen more than a few cases where the tenon inner shoulder actually measured larger than the socket diameter and/or it actually got worse the farther from the cork it was. Actually it's quite rare that the top of the shoulder (closest to the cork) is worse than the bottom. For some reason it's usually just the inner shoulder but sometimes it's both.

Your case was in the minority where sanding a bit apparently solved the problem (even though he used a relatively aggressive paper).

I'm wondering if it's much more common on Buffets because Buffets are more common? I mean, the number of tight tenons I see on Buffets compared with other brands is roughly proportional to the number of Buffets I see compared with other brands.
I recently had to fix this issue on two new Selmer Privilege clarinets.

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