Wes wrote:

Jim Chandler wrote:


That's true, now that I think of it. The grade only signifies tension
strength. DUH! Using the tail stock is not a bad idea either. Thanks,
Jon.



Just the other day I had to remind an engineer that heat treating won't make
a shaft stiffer. I think he was a bit suprised having a tool box pusher
mention Young's modulus.

4:1 is tail stock territory though there are things like a follow rest. I've
never used one but I could see them being handy.

Wes


Well, I don't know about THAT now. MY shaft always gets stiffer when it
is warmed up! :-)

Jim