Heck,My son-in-law built a Gingery Lathe out of car pistons, a 6' ladder and auto running boards.
His first threading setup used All Thread with a 10 tpi. He did use a bigger lathe to build the head, then used the head to build the tail. It was quite the project, and I would have spent the money to buy one, but by the time he had it built it he had a good idea how to use it.
Home-built Gingery Lathe