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Doublereed Archive - Posting 000071.txt from 2006/08

From: "Lawrence Rhodes" <primobassoon@-----.net>
Subj: Re: [DR-L] where to get spiral reamer sharpened
Date: Wed, 09 Aug 2006 13:07:38 -0400

If you are willing to do a little work you can make your own tapered reamer.
There are various styles going from straight flute to spiral to corkscrew(a
flute is what does the cutting). With a set of calipers in your favorite
unit of measure find the diminsions of your bocal. Go to a machine shop
supply and buy a #3 spiral reamer(This is very close to the diminsions of a
Heckel bocal). You will measure the reamer. Find the section of reamer
that matches your bocal(diameter measurement. There is a large #3 that
works for contra & a smaller #3 that works for bassoon). Mark the highest
point you want to ream(use tape). Place the reamer in a drill as you would
a drill bit. Turn on your grinder. Counter rotate the tip of the
reamer(which is way too big to go into your reed) above the section you will
use for reaming the reed and thin it out till it is very narrow and will fit
in the throat of the reed without cracking it. You now can make a bassoon
or contra reamer at will & can try different flute styles. BTW this is very
inexpensive compared to buying a commercial product. I sell my reamers for
30 dollars each. This way you can DIY. Use a pin vice to hold your
reamer.( a pin vice is used to hold a drill or reamer by hand. It is
basically a drill chuck on a handle & you provide the drilling or reaming
force) Note that using a machine to rotate the reamer might give different
hole size than hand reaming. Lawrence Rhodes.......

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