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Re: new CG Carbon clarinet

Author: clarnibass
Date: 2019-12-04 09:08

>> Good question 'Clarnibass,' and I will let Morrie Backun (ironically) answer that question at 3:31 of this video <<

It was a bit of a rhetorical question... your post sounded like you meant this is a problem on the carbon fiber clarinet but not on a regular wood clarinet. My point was that tone holes don't have to be exactly round.

I guess if they drilled round and then they aren't something moved... in the video he uses calipers and feel of the reamer to measure, which isn't very precise, but more than the precise enough for this purpose... which is the point that this doesn't have to be that precise...

Checking for more wobble in one direction with the reamer, it means either the reamer or the tone hole are tapered. The former most definitely. It really looks like the reamer is tapered too, otherwise it would either pass or not pass through the tone hole. It would round it, but also enlarge it, exact size depends where you stop.

In the end he measured 0.001" difference with the imprecise measuring method... which is ok. Point is that if you are dealing with a problem of tone holes not being round, which affects the way the clarinet plays, then the exact details of that are the important part. If it's out of round but large enough, reaming would increase the issue if anything.

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