Same lathe. Just replaced a busted part.
Every one (PD) is just a bit different. I have a set of calipers and can turn a pretty consistent dowel with them. Do it pretty often to fill that bottom 2" hole (the plug). But find turning a perfect cylinder the same size and shape a bit boring.
Even tried to do that a bit at first (the very beginning of prototyping). Precisely x diameter. Turned sticks several PDs long even. Chopped to length after. Then they came off the lathe to be shaped on the top by a router (3/8" round-over bit) then back on the lathe to sand and refine the shape a bit. very uniform, precisely boring.
If you look at furniture legs (mostly) a slight taper is pleasing, so the hardness of a routered shape on a straight cylinder made for a less appealing look.
Each PD is cut to length before going on the lathe (as both your units were and all have been for a very long while). Each block then is shaped on the lathe. Roughing gouge first to a cylinder (with a slight taper) the then an oval skew chisel to do the top round over and planing of the body. At that point it's pretty close, a sanding belt (or two) in hand refines the shape while it is spinning. That's about it. Each one is eye-balled. Some thinner, some more taper, some more round over. Then, all the other stuff we do, before the leather goes on and final hand sanding is done, that is the final shape refinement.
Yes, hand sanding, first to get the leather flush with the wood then to get the wood-burned logo nice and the last with the fine papers and steel wool before hand rubbed Buzz-Butter and buffing. BTW I own belt and orbital sanders, but they are not used on the PDs.
I just like it this way.Not an assembly line with strick parameters. It's the one area of freedom. Things like wiring and tubing length and such are set in stone (by jigs) for repeatability. Shaping wood is the real fun for a woodworker.