Yes, BF20 is the common name for them, I believe it's based on a 20" X axis. I have read a lot on his site G0704 and watched a lot of Hoss' youtube videos. Yes, Hoss is the "Mad Scientist" of the small mills
Lot's of good ideas, but I haven't the funds currently to pursue adding features to my mill yet. I'm currently awaiting another custom dump box from "the master" Reg for my Mack build.
John