Search:

If you are working from rod you cheat with the vice.

Make a base plate with rods that sit at 90 degrees.

Drill the 0 and 60 holes like normal. Then drop in the plate and reverse the rod to get...

You're working from a square blank right?

Why not use a tilting vice on that block before it goes on the lathe, and put pin holes through the block at 0, 60, and 120 degrees. Then make a jig that...