Pete C. wrote:

Jim Stewart wrote:

I needed a fixture to align a switch, a round printed
circuit board and a spring for soldering. The parts
all had to be coaxial and coplanar.

I made this over the weekend. It works beautifully.
How did I do it with just a manual lathe and mill?

http://grumpyoldgeek.com/images/fixture.jpg

My thought would be to bore it in a piece of round bar, weld/braze/bolt
the back section on and then cut it in half.

Close. No heat was used.