If the piece you are working on is longer than your lathe can accommodate? Why you line up your mini lathe and weight it down with an anvil. Add in a steady rest to manage some of the whip and there you have it. This is a ramming rod for the cannons on the Onrust and it is over 4 feet long. I had to turn down the shaft diameter to Ύ x 2 long and add a 1.5 diameter head about 3 long with a taper down to the shaft size. Worked reasonably well. The gun captain was very pleased with the results.