Hi all :
what dimension could be considered a SHORT facing length, a MEDIUM or a LARGE facing curve length in a Metal Tenor Mouthpiece ?
I have a mouthpiece that has 19,5 mm facing length. View attachment 194289
I have an Otto Link Super Tone Master, refaced by Mojo, and the opening ( according to him) in that mouthpiece is "49"... (but using the glass that read the opening in twice the real value in mm ).So the opening is 24.5 mm...
I checked it with the same feeler gauge and using the same system and I got the same value as him ( 24.5 mm)...
If it is my work others are correct...you need to use a .0015
.005 is way to big.
I face my metal pieces with a medium length. If you face my pieces with a short facing and you dont lower the baffle it will play harsh. Facing length is not just about response, it is directly tied to tonal color as it lengthens or shortens the reed and thus alters the speed if vibration. A millimeter or half millimeter makes a difference.
i only use short facings if someone makes me. I do not like them.
Sure, 20mm is pretty short for tenor but within the range that works, I do it from time to time for the right situations. There's no hard and fast rules but FWIW more than 24mm I think of as long, less than 22mm I think of as short.
On a .095 the difference between a .005 and .0015 is about 2 mm
That would make your facing about a 22 give or take a margin of error for measuring.
Its likely a 22.5 which would be a 45 which would be in range of what i would use on A mosaic of that size.
.05mm maybe close enough, but .005" (I've seen some feeler sets X's .1 to save ink) is way off. It's worth mentioning that the feelers may be in inches. Although, you've tested another piece that apparently checks out so perhaps it is a "short" facing...
I used a plastic film , measuring aprox. 0.0015" and made the measurement again and I got a result of 22.5 ( not as exactly, because it is a plastic film, not a feeler ( I do not have feelers in inches ). But it is as Sigmund says...
"Its likely a 22.5 which would be a 45 which would be in range of what i would use on A mosaic of that size."
It was my mistake, using a milimetric feeler , that is thicker than the 0.0015" used by refacers. the reading i got was erroneus. Sorry...
so, to answer my own question, ( according to the answer from Morgan Fry ) a facing curve in the range between 22-23 milimeters could be considered medium, less than 22 short and longer than 24, Long...
many thanks to all to help me understand, and correct my measurement..
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