Hexagonal Shaft

Ron Nossaman RNossaman@cox.net
Sun, 16 Nov 2003 22:42:21 -0600


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Jim, Joe, etc,
I figured Joe meant something other than 3/32, but since it's been 
addressed... As a quick expedient, how about just calculating the moment of 
inertia (I) for the various cross sections as an indication of their 
relative stiffness, and cross sectional area as an indication of weight?

circle
D	0.25
I	0.0001914
Area	0.0490875
Area/I	256.45714
I/Area	0.0038993

hex flat
D	0.2429
I	0.0001915
Area	0.0488523
Area/I	255.16001
I/Area	0.0039191

hex edge
D	0.2377
I	0.0001915
Area	0.0467831
Area/I	244.24221
I/Area	0.0040943

square
D	0.2189
I	0.0001913
Area	0.0479172
Area/I	250.43194
I/Area	0.0039931

Ron N

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