Re: My 8020 router build
Dual system is not much more complex than single. Dual allows building a stronger machine as the table can be supported not just at the ends. Dual eliminates racking. Fears of missed steps are unfounded with a properly designed machine. I've never seen anyone who went from a single drive machine to a dual drive regret it, or think single drive is better. A lot of people, including myself, have had a much better machine by moving to dual drive.
7xCNC.com - CNC info for the minilathe (7x10, 7x12, 7x14, 7x16)