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bharbour

wrote:
On Nov 10, 9:10 am, Ned Simmons wrote:
On Mon, 9 Nov 2009 18:59:02 -0800 (PST),
wrote:

(view in Courier or other fixed font)
.--.
.
.--. \
. . |
/ \ / b.
| - |//|
|.--' '----'/ .
a. |'--. .----. /
| - |/
\ / /
/. .:
/ ' -- ' :
bore _
|=|
[___] --clamp screw
a = "hinge"
b = "cut"
I've made some homemade flex couplers using setscrews to bite the
shafts, but clamps are sooo much classier.
This crappy drawing is an end view of the clamp portion of a helical
flexible beam coupler. Question: how's that cut made, from b. to a.?
Slitting saw. If you were to look at a section thru the cut you'd see
a radius equal to that of the saw adjacent to "a" in your drawing.

--
Ned Simmons

Really? I just posted the opposite, that the cut's square-bottomed,
but now that you say it I'm not so sure.

Would the hinge be flexible enough with a big arc of metal left at the
bottom of that cut? I wouldn't think so, but if you're right it must
be.

James Arthur

A Slitting saw should give you a fairly square bottom on the cut. They
are spooky buggers to use though, a lot of teeth and a big unguarded
area.

BobH