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Thanks Ed,
I will include that in my notes (as
usual).
The Son worked it out as well, he's the brains in
the family, but I couldn't work out why such an odd degree, for instance why not
6 degrees!?
I clocked it up in the lathe using the dial
indicator and tried reading of the tool holder gauge but it was quite 6 degrees,
the marks were a little worn off as well, which made it harder to
read.
However Richard Sohn gave the answer, as it's a
metric 10:1 taper - which makes so much more sense. I think Richard might have
mentioned this before, but I might not have been taking notice at the
time.
Thanks again Ed- and everyone. One more problem
solved.
George (down under)
Hi George,
Several folks have responded to your question concerning
angles, for what it is worth I also got 5.729 degrees.
There are a couple of formulas you can use. One
common approach is to use
ArcSin, but unless you have a convenient
ArcSin function available that can be problematic.
So instead I like to use this one for y/r (y being
the vertical length of your angle and r the horizontal
length) Degrees = y/r * 180/pi = 3/30*180/3.1456
= 5.729 deg. This way you don't need
a table/function of ArcSin.
Ed
----- Original Message -----
Sent: Friday, January 11, 2008 7:42
PM
Subject: [FlyRotary] Angles
Ed,
I measured the taper of the flywheel taper with
a ruler, the draft is 3mm in 30mm. I checked that with a dial indicator and
it was correct - how does one derive the angle of that?
Is it 6 degrees?
George (down under)
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