So I have an MM16 and want to use Zambus style castors on it. I read that those who used the Zambus castors, simply mounted them to the existing leveling screws on the saw base and the castor's top surface, is flush with the very bottom of the base. My saw base looks exactly the same as theirs, except, if I tried to mount the castors the way they did, the castors would sit inside the base. To visualize this, think of a shoebox lid and that's how the base is constructed, with no real bottom surface. So how did you do it? Here's the original thread I found... http://www.sawmillcreek.org/showthre...-Uh-Huh-Uh-Huh