On Thu, 5 Apr 2012 08:25:49 -0700 (PDT), Bob La Londe
wrote:

If you needed to put a hemisperical end on a bunch of 1/4" stainless
dowels how would you tackle it? =A0Say 400, give or take.

No. They don't need to be terribley accurate. This is just to make
the non press fit end of alignment pins a little faster to start.
They do need to be pretty and smooth though.
=================

Why not just cut a heavy chamfer? Curves are always
difficult to machine in a manual machine. A straight
chamfer can be cut many ways and should be cheaper/quicker
than a radius.

One thought is an adaptation of a screw machine or turret
lathe tool that did this operation, called a box tool.







--
Unka' George

"Gold is the money of kings,
silver is the money of gentlemen,
barter is the money of peasants,
but debt is the money of slaves"

-Norm Franz, "Money and Wealth in the New Millenium"