Here in Florida, our prison system teaches convicts that same skill. Only they use rocks and sledge hammers. 
Start offering suppresors and I'll be impressed. 
FQ13 who is just kidding, but a bit confused. What are you showing us?
He's learning to run a lathe, Turning a diameter, probably +/- .001 tolerance, and a specific length, knurling in the middle, then threading a specific length, or thread count on the other end, also the 2 shafts probably have to be centered and parallel.
Now for my questions.
CNC or manual ?
Are you hand grinding your own tooling ?
Are you learning milling machines, and grinders as well, or just lathes ?
Have you hand filed a 1" cube yet ?
Wait till you make a nut, and a bolt, and they fit, then you will be really proud of yourself.

Looks like a real good job.