Tom Sanders wrote:
> Given the interest in Drillium and countersinking the holes in recent posts
> (sorry Sheldon) I have a question to pose to the list. Does countersinking
> drillium holes (they are probably only countersunk on the side viewed from
> anyway is my guess) add structural strength by eliminating a possible Stress
> riser around the circumference of the drilled hole, or does it decrease the
> strength by creating two smaller stress risers, or (and this is my guess)
> does it make no difference?
I suspect it's just cosmetic -- the countersunk holes look cooler. FWIW, the drillium Campy crank I mentioned in another message is countersunk on both sides.
--
John (john@os2.dhs.org)
Appleton WI USA