Used Metal Lathes


I am looking for a place to fabricate something for me on a metal lathe without it being terribly expensive..?

Here is what I need. http://members.aol.com/kappadx/kappa/kap7.gif http://members.aol.com/kappadx/kappa/kap5.gif http://members.aol.com/kappadx/kappa/kap9a.gif It must be fabricated from 1018 cold-rolled low carbon steel.

Where should I place the cutter on a metal lathe?

I’m turning down the outside of a 6″ pipe to lessen the wall thickness. Should my cutter be placed exactly at the center line of the pipe or just slightly below?